From 8c598e84a6e58bb6c51507198a30c7a1f2da74a9 Mon Sep 17 00:00:00 2001
From: Jonatan Nilsson <jonatan@nilsson.is>
Date: Sun, 10 Apr 2016 08:38:17 +0000
Subject: [PATCH] remove generated files

---
 public/client.js | 7309 -----------------------------------
 public/main.js   | 9604 ----------------------------------------------
 2 files changed, 16913 deletions(-)
 delete mode 100644 public/client.js
 delete mode 100644 public/main.js

diff --git a/public/client.js b/public/client.js
deleted file mode 100644
index 694057c..0000000
--- a/public/client.js
+++ /dev/null
@@ -1,7309 +0,0 @@
-(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
-const socket = require('./socket')
-
-socket.on('client.display', (data) => {
-  let exists = document.getElementById(data.key)
-
-  if (exists) {
-    exists.tag.remove()
-    exists.remove()
-  }
-
-  let element = document.createElement('div')
-  element.innerHTML = data.html
-  element.id = data.key
-  element.classList.add('root-element')
-
-  let styleElement = document.createElement('style')
-  styleElement.setAttribute('type', 'text/css')
-  styleElement.innerHTML = data.css
-
-  element.tag = styleElement
-
-  document.body.appendChild(element)
-  document.head.appendChild(styleElement)
-
-  window.setTimeout(() => {
-    element.classList.add('root-element-display')
-  }, 50)
-})
-
-socket.on('client.hide', (data) => {
-  let exists = document.getElementById(data.key)
-
-  if (exists) {
-    exists.classList.remove('root-element-display')
-
-    window.setTimeout(() => {
-      exists.tag.remove()
-      exists.remove()
-    }, 1500)
-  }
-})
-
-},{"./socket":2}],2:[function(require,module,exports){
-const io = require('socket.io-client')
-
-const socket = io()
-
-module.exports = socket
-
-},{"socket.io-client":36}],3:[function(require,module,exports){
-module.exports = after
-
-function after(count, callback, err_cb) {
-    var bail = false
-    err_cb = err_cb || noop
-    proxy.count = count
-
-    return (count === 0) ? callback() : proxy
-
-    function proxy(err, result) {
-        if (proxy.count <= 0) {
-            throw new Error('after called too many times')
-        }
-        --proxy.count
-
-        // after first error, rest are passed to err_cb
-        if (err) {
-            bail = true
-            callback(err)
-            // future error callbacks will go to error handler
-            callback = err_cb
-        } else if (proxy.count === 0 && !bail) {
-            callback(null, result)
-        }
-    }
-}
-
-function noop() {}
-
-},{}],4:[function(require,module,exports){
-/**
- * An abstraction for slicing an arraybuffer even when
- * ArrayBuffer.prototype.slice is not supported
- *
- * @api public
- */
-
-module.exports = function(arraybuffer, start, end) {
-  var bytes = arraybuffer.byteLength;
-  start = start || 0;
-  end = end || bytes;
-
-  if (arraybuffer.slice) { return arraybuffer.slice(start, end); }
-
-  if (start < 0) { start += bytes; }
-  if (end < 0) { end += bytes; }
-  if (end > bytes) { end = bytes; }
-
-  if (start >= bytes || start >= end || bytes === 0) {
-    return new ArrayBuffer(0);
-  }
-
-  var abv = new Uint8Array(arraybuffer);
-  var result = new Uint8Array(end - start);
-  for (var i = start, ii = 0; i < end; i++, ii++) {
-    result[ii] = abv[i];
-  }
-  return result.buffer;
-};
-
-},{}],5:[function(require,module,exports){
-
-/**
- * Expose `Backoff`.
- */
-
-module.exports = Backoff;
-
-/**
- * Initialize backoff timer with `opts`.
- *
- * - `min` initial timeout in milliseconds [100]
- * - `max` max timeout [10000]
- * - `jitter` [0]
- * - `factor` [2]
- *
- * @param {Object} opts
- * @api public
- */
-
-function Backoff(opts) {
-  opts = opts || {};
-  this.ms = opts.min || 100;
-  this.max = opts.max || 10000;
-  this.factor = opts.factor || 2;
-  this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;
-  this.attempts = 0;
-}
-
-/**
- * Return the backoff duration.
- *
- * @return {Number}
- * @api public
- */
-
-Backoff.prototype.duration = function(){
-  var ms = this.ms * Math.pow(this.factor, this.attempts++);
-  if (this.jitter) {
-    var rand =  Math.random();
-    var deviation = Math.floor(rand * this.jitter * ms);
-    ms = (Math.floor(rand * 10) & 1) == 0  ? ms - deviation : ms + deviation;
-  }
-  return Math.min(ms, this.max) | 0;
-};
-
-/**
- * Reset the number of attempts.
- *
- * @api public
- */
-
-Backoff.prototype.reset = function(){
-  this.attempts = 0;
-};
-
-/**
- * Set the minimum duration
- *
- * @api public
- */
-
-Backoff.prototype.setMin = function(min){
-  this.ms = min;
-};
-
-/**
- * Set the maximum duration
- *
- * @api public
- */
-
-Backoff.prototype.setMax = function(max){
-  this.max = max;
-};
-
-/**
- * Set the jitter
- *
- * @api public
- */
-
-Backoff.prototype.setJitter = function(jitter){
-  this.jitter = jitter;
-};
-
-
-},{}],6:[function(require,module,exports){
-/*
- * base64-arraybuffer
- * https://github.com/niklasvh/base64-arraybuffer
- *
- * Copyright (c) 2012 Niklas von Hertzen
- * Licensed under the MIT license.
- */
-(function(chars){
-  "use strict";
-
-  exports.encode = function(arraybuffer) {
-    var bytes = new Uint8Array(arraybuffer),
-    i, len = bytes.length, base64 = "";
-
-    for (i = 0; i < len; i+=3) {
-      base64 += chars[bytes[i] >> 2];
-      base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];
-      base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];
-      base64 += chars[bytes[i + 2] & 63];
-    }
-
-    if ((len % 3) === 2) {
-      base64 = base64.substring(0, base64.length - 1) + "=";
-    } else if (len % 3 === 1) {
-      base64 = base64.substring(0, base64.length - 2) + "==";
-    }
-
-    return base64;
-  };
-
-  exports.decode =  function(base64) {
-    var bufferLength = base64.length * 0.75,
-    len = base64.length, i, p = 0,
-    encoded1, encoded2, encoded3, encoded4;
-
-    if (base64[base64.length - 1] === "=") {
-      bufferLength--;
-      if (base64[base64.length - 2] === "=") {
-        bufferLength--;
-      }
-    }
-
-    var arraybuffer = new ArrayBuffer(bufferLength),
-    bytes = new Uint8Array(arraybuffer);
-
-    for (i = 0; i < len; i+=4) {
-      encoded1 = chars.indexOf(base64[i]);
-      encoded2 = chars.indexOf(base64[i+1]);
-      encoded3 = chars.indexOf(base64[i+2]);
-      encoded4 = chars.indexOf(base64[i+3]);
-
-      bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);
-      bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);
-      bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);
-    }
-
-    return arraybuffer;
-  };
-})("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/");
-
-},{}],7:[function(require,module,exports){
-(function (global){
-/**
- * Create a blob builder even when vendor prefixes exist
- */
-
-var BlobBuilder = global.BlobBuilder
-  || global.WebKitBlobBuilder
-  || global.MSBlobBuilder
-  || global.MozBlobBuilder;
-
-/**
- * Check if Blob constructor is supported
- */
-
-var blobSupported = (function() {
-  try {
-    var a = new Blob(['hi']);
-    return a.size === 2;
-  } catch(e) {
-    return false;
-  }
-})();
-
-/**
- * Check if Blob constructor supports ArrayBufferViews
- * Fails in Safari 6, so we need to map to ArrayBuffers there.
- */
-
-var blobSupportsArrayBufferView = blobSupported && (function() {
-  try {
-    var b = new Blob([new Uint8Array([1,2])]);
-    return b.size === 2;
-  } catch(e) {
-    return false;
-  }
-})();
-
-/**
- * Check if BlobBuilder is supported
- */
-
-var blobBuilderSupported = BlobBuilder
-  && BlobBuilder.prototype.append
-  && BlobBuilder.prototype.getBlob;
-
-/**
- * Helper function that maps ArrayBufferViews to ArrayBuffers
- * Used by BlobBuilder constructor and old browsers that didn't
- * support it in the Blob constructor.
- */
-
-function mapArrayBufferViews(ary) {
-  for (var i = 0; i < ary.length; i++) {
-    var chunk = ary[i];
-    if (chunk.buffer instanceof ArrayBuffer) {
-      var buf = chunk.buffer;
-
-      // if this is a subarray, make a copy so we only
-      // include the subarray region from the underlying buffer
-      if (chunk.byteLength !== buf.byteLength) {
-        var copy = new Uint8Array(chunk.byteLength);
-        copy.set(new Uint8Array(buf, chunk.byteOffset, chunk.byteLength));
-        buf = copy.buffer;
-      }
-
-      ary[i] = buf;
-    }
-  }
-}
-
-function BlobBuilderConstructor(ary, options) {
-  options = options || {};
-
-  var bb = new BlobBuilder();
-  mapArrayBufferViews(ary);
-
-  for (var i = 0; i < ary.length; i++) {
-    bb.append(ary[i]);
-  }
-
-  return (options.type) ? bb.getBlob(options.type) : bb.getBlob();
-};
-
-function BlobConstructor(ary, options) {
-  mapArrayBufferViews(ary);
-  return new Blob(ary, options || {});
-};
-
-module.exports = (function() {
-  if (blobSupported) {
-    return blobSupportsArrayBufferView ? global.Blob : BlobConstructor;
-  } else if (blobBuilderSupported) {
-    return BlobBuilderConstructor;
-  } else {
-    return undefined;
-  }
-})();
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{}],8:[function(require,module,exports){
-
-},{}],9:[function(require,module,exports){
-/**
- * Slice reference.
- */
-
-var slice = [].slice;
-
-/**
- * Bind `obj` to `fn`.
- *
- * @param {Object} obj
- * @param {Function|String} fn or string
- * @return {Function}
- * @api public
- */
-
-module.exports = function(obj, fn){
-  if ('string' == typeof fn) fn = obj[fn];
-  if ('function' != typeof fn) throw new Error('bind() requires a function');
-  var args = slice.call(arguments, 2);
-  return function(){
-    return fn.apply(obj, args.concat(slice.call(arguments)));
-  }
-};
-
-},{}],10:[function(require,module,exports){
-
-/**
- * Expose `Emitter`.
- */
-
-module.exports = Emitter;
-
-/**
- * Initialize a new `Emitter`.
- *
- * @api public
- */
-
-function Emitter(obj) {
-  if (obj) return mixin(obj);
-};
-
-/**
- * Mixin the emitter properties.
- *
- * @param {Object} obj
- * @return {Object}
- * @api private
- */
-
-function mixin(obj) {
-  for (var key in Emitter.prototype) {
-    obj[key] = Emitter.prototype[key];
-  }
-  return obj;
-}
-
-/**
- * Listen on the given `event` with `fn`.
- *
- * @param {String} event
- * @param {Function} fn
- * @return {Emitter}
- * @api public
- */
-
-Emitter.prototype.on =
-Emitter.prototype.addEventListener = function(event, fn){
-  this._callbacks = this._callbacks || {};
-  (this._callbacks[event] = this._callbacks[event] || [])
-    .push(fn);
-  return this;
-};
-
-/**
- * Adds an `event` listener that will be invoked a single
- * time then automatically removed.
- *
- * @param {String} event
- * @param {Function} fn
- * @return {Emitter}
- * @api public
- */
-
-Emitter.prototype.once = function(event, fn){
-  var self = this;
-  this._callbacks = this._callbacks || {};
-
-  function on() {
-    self.off(event, on);
-    fn.apply(this, arguments);
-  }
-
-  on.fn = fn;
-  this.on(event, on);
-  return this;
-};
-
-/**
- * Remove the given callback for `event` or all
- * registered callbacks.
- *
- * @param {String} event
- * @param {Function} fn
- * @return {Emitter}
- * @api public
- */
-
-Emitter.prototype.off =
-Emitter.prototype.removeListener =
-Emitter.prototype.removeAllListeners =
-Emitter.prototype.removeEventListener = function(event, fn){
-  this._callbacks = this._callbacks || {};
-
-  // all
-  if (0 == arguments.length) {
-    this._callbacks = {};
-    return this;
-  }
-
-  // specific event
-  var callbacks = this._callbacks[event];
-  if (!callbacks) return this;
-
-  // remove all handlers
-  if (1 == arguments.length) {
-    delete this._callbacks[event];
-    return this;
-  }
-
-  // remove specific handler
-  var cb;
-  for (var i = 0; i < callbacks.length; i++) {
-    cb = callbacks[i];
-    if (cb === fn || cb.fn === fn) {
-      callbacks.splice(i, 1);
-      break;
-    }
-  }
-  return this;
-};
-
-/**
- * Emit `event` with the given args.
- *
- * @param {String} event
- * @param {Mixed} ...
- * @return {Emitter}
- */
-
-Emitter.prototype.emit = function(event){
-  this._callbacks = this._callbacks || {};
-  var args = [].slice.call(arguments, 1)
-    , callbacks = this._callbacks[event];
-
-  if (callbacks) {
-    callbacks = callbacks.slice(0);
-    for (var i = 0, len = callbacks.length; i < len; ++i) {
-      callbacks[i].apply(this, args);
-    }
-  }
-
-  return this;
-};
-
-/**
- * Return array of callbacks for `event`.
- *
- * @param {String} event
- * @return {Array}
- * @api public
- */
-
-Emitter.prototype.listeners = function(event){
-  this._callbacks = this._callbacks || {};
-  return this._callbacks[event] || [];
-};
-
-/**
- * Check if this emitter has `event` handlers.
- *
- * @param {String} event
- * @return {Boolean}
- * @api public
- */
-
-Emitter.prototype.hasListeners = function(event){
-  return !! this.listeners(event).length;
-};
-
-},{}],11:[function(require,module,exports){
-
-module.exports = function(a, b){
-  var fn = function(){};
-  fn.prototype = b.prototype;
-  a.prototype = new fn;
-  a.prototype.constructor = a;
-};
-},{}],12:[function(require,module,exports){
-
-/**
- * This is the web browser implementation of `debug()`.
- *
- * Expose `debug()` as the module.
- */
-
-exports = module.exports = require('./debug');
-exports.log = log;
-exports.formatArgs = formatArgs;
-exports.save = save;
-exports.load = load;
-exports.useColors = useColors;
-exports.storage = 'undefined' != typeof chrome
-               && 'undefined' != typeof chrome.storage
-                  ? chrome.storage.local
-                  : localstorage();
-
-/**
- * Colors.
- */
-
-exports.colors = [
-  'lightseagreen',
-  'forestgreen',
-  'goldenrod',
-  'dodgerblue',
-  'darkorchid',
-  'crimson'
-];
-
-/**
- * Currently only WebKit-based Web Inspectors, Firefox >= v31,
- * and the Firebug extension (any Firefox version) are known
- * to support "%c" CSS customizations.
- *
- * TODO: add a `localStorage` variable to explicitly enable/disable colors
- */
-
-function useColors() {
-  // is webkit? http://stackoverflow.com/a/16459606/376773
-  return ('WebkitAppearance' in document.documentElement.style) ||
-    // is firebug? http://stackoverflow.com/a/398120/376773
-    (window.console && (console.firebug || (console.exception && console.table))) ||
-    // is firefox >= v31?
-    // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
-    (navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31);
-}
-
-/**
- * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
- */
-
-exports.formatters.j = function(v) {
-  return JSON.stringify(v);
-};
-
-
-/**
- * Colorize log arguments if enabled.
- *
- * @api public
- */
-
-function formatArgs() {
-  var args = arguments;
-  var useColors = this.useColors;
-
-  args[0] = (useColors ? '%c' : '')
-    + this.namespace
-    + (useColors ? ' %c' : ' ')
-    + args[0]
-    + (useColors ? '%c ' : ' ')
-    + '+' + exports.humanize(this.diff);
-
-  if (!useColors) return args;
-
-  var c = 'color: ' + this.color;
-  args = [args[0], c, 'color: inherit'].concat(Array.prototype.slice.call(args, 1));
-
-  // the final "%c" is somewhat tricky, because there could be other
-  // arguments passed either before or after the %c, so we need to
-  // figure out the correct index to insert the CSS into
-  var index = 0;
-  var lastC = 0;
-  args[0].replace(/%[a-z%]/g, function(match) {
-    if ('%%' === match) return;
-    index++;
-    if ('%c' === match) {
-      // we only are interested in the *last* %c
-      // (the user may have provided their own)
-      lastC = index;
-    }
-  });
-
-  args.splice(lastC, 0, c);
-  return args;
-}
-
-/**
- * Invokes `console.log()` when available.
- * No-op when `console.log` is not a "function".
- *
- * @api public
- */
-
-function log() {
-  // this hackery is required for IE8/9, where
-  // the `console.log` function doesn't have 'apply'
-  return 'object' === typeof console
-    && console.log
-    && Function.prototype.apply.call(console.log, console, arguments);
-}
-
-/**
- * Save `namespaces`.
- *
- * @param {String} namespaces
- * @api private
- */
-
-function save(namespaces) {
-  try {
-    if (null == namespaces) {
-      exports.storage.removeItem('debug');
-    } else {
-      exports.storage.debug = namespaces;
-    }
-  } catch(e) {}
-}
-
-/**
- * Load `namespaces`.
- *
- * @return {String} returns the previously persisted debug modes
- * @api private
- */
-
-function load() {
-  var r;
-  try {
-    r = exports.storage.debug;
-  } catch(e) {}
-  return r;
-}
-
-/**
- * Enable namespaces listed in `localStorage.debug` initially.
- */
-
-exports.enable(load());
-
-/**
- * Localstorage attempts to return the localstorage.
- *
- * This is necessary because safari throws
- * when a user disables cookies/localstorage
- * and you attempt to access it.
- *
- * @return {LocalStorage}
- * @api private
- */
-
-function localstorage(){
-  try {
-    return window.localStorage;
-  } catch (e) {}
-}
-
-},{"./debug":13}],13:[function(require,module,exports){
-
-/**
- * This is the common logic for both the Node.js and web browser
- * implementations of `debug()`.
- *
- * Expose `debug()` as the module.
- */
-
-exports = module.exports = debug;
-exports.coerce = coerce;
-exports.disable = disable;
-exports.enable = enable;
-exports.enabled = enabled;
-exports.humanize = require('ms');
-
-/**
- * The currently active debug mode names, and names to skip.
- */
-
-exports.names = [];
-exports.skips = [];
-
-/**
- * Map of special "%n" handling functions, for the debug "format" argument.
- *
- * Valid key names are a single, lowercased letter, i.e. "n".
- */
-
-exports.formatters = {};
-
-/**
- * Previously assigned color.
- */
-
-var prevColor = 0;
-
-/**
- * Previous log timestamp.
- */
-
-var prevTime;
-
-/**
- * Select a color.
- *
- * @return {Number}
- * @api private
- */
-
-function selectColor() {
-  return exports.colors[prevColor++ % exports.colors.length];
-}
-
-/**
- * Create a debugger with the given `namespace`.
- *
- * @param {String} namespace
- * @return {Function}
- * @api public
- */
-
-function debug(namespace) {
-
-  // define the `disabled` version
-  function disabled() {
-  }
-  disabled.enabled = false;
-
-  // define the `enabled` version
-  function enabled() {
-
-    var self = enabled;
-
-    // set `diff` timestamp
-    var curr = +new Date();
-    var ms = curr - (prevTime || curr);
-    self.diff = ms;
-    self.prev = prevTime;
-    self.curr = curr;
-    prevTime = curr;
-
-    // add the `color` if not set
-    if (null == self.useColors) self.useColors = exports.useColors();
-    if (null == self.color && self.useColors) self.color = selectColor();
-
-    var args = Array.prototype.slice.call(arguments);
-
-    args[0] = exports.coerce(args[0]);
-
-    if ('string' !== typeof args[0]) {
-      // anything else let's inspect with %o
-      args = ['%o'].concat(args);
-    }
-
-    // apply any `formatters` transformations
-    var index = 0;
-    args[0] = args[0].replace(/%([a-z%])/g, function(match, format) {
-      // if we encounter an escaped % then don't increase the array index
-      if (match === '%%') return match;
-      index++;
-      var formatter = exports.formatters[format];
-      if ('function' === typeof formatter) {
-        var val = args[index];
-        match = formatter.call(self, val);
-
-        // now we need to remove `args[index]` since it's inlined in the `format`
-        args.splice(index, 1);
-        index--;
-      }
-      return match;
-    });
-
-    if ('function' === typeof exports.formatArgs) {
-      args = exports.formatArgs.apply(self, args);
-    }
-    var logFn = enabled.log || exports.log || console.log.bind(console);
-    logFn.apply(self, args);
-  }
-  enabled.enabled = true;
-
-  var fn = exports.enabled(namespace) ? enabled : disabled;
-
-  fn.namespace = namespace;
-
-  return fn;
-}
-
-/**
- * Enables a debug mode by namespaces. This can include modes
- * separated by a colon and wildcards.
- *
- * @param {String} namespaces
- * @api public
- */
-
-function enable(namespaces) {
-  exports.save(namespaces);
-
-  var split = (namespaces || '').split(/[\s,]+/);
-  var len = split.length;
-
-  for (var i = 0; i < len; i++) {
-    if (!split[i]) continue; // ignore empty strings
-    namespaces = split[i].replace(/\*/g, '.*?');
-    if (namespaces[0] === '-') {
-      exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
-    } else {
-      exports.names.push(new RegExp('^' + namespaces + '$'));
-    }
-  }
-}
-
-/**
- * Disable debug output.
- *
- * @api public
- */
-
-function disable() {
-  exports.enable('');
-}
-
-/**
- * Returns true if the given mode name is enabled, false otherwise.
- *
- * @param {String} name
- * @return {Boolean}
- * @api public
- */
-
-function enabled(name) {
-  var i, len;
-  for (i = 0, len = exports.skips.length; i < len; i++) {
-    if (exports.skips[i].test(name)) {
-      return false;
-    }
-  }
-  for (i = 0, len = exports.names.length; i < len; i++) {
-    if (exports.names[i].test(name)) {
-      return true;
-    }
-  }
-  return false;
-}
-
-/**
- * Coerce `val`.
- *
- * @param {Mixed} val
- * @return {Mixed}
- * @api private
- */
-
-function coerce(val) {
-  if (val instanceof Error) return val.stack || val.message;
-  return val;
-}
-
-},{"ms":32}],14:[function(require,module,exports){
-
-module.exports =  require('./lib/');
-
-},{"./lib/":15}],15:[function(require,module,exports){
-
-module.exports = require('./socket');
-
-/**
- * Exports parser
- *
- * @api public
- *
- */
-module.exports.parser = require('engine.io-parser');
-
-},{"./socket":16,"engine.io-parser":24}],16:[function(require,module,exports){
-(function (global){
-/**
- * Module dependencies.
- */
-
-var transports = require('./transports');
-var Emitter = require('component-emitter');
-var debug = require('debug')('engine.io-client:socket');
-var index = require('indexof');
-var parser = require('engine.io-parser');
-var parseuri = require('parseuri');
-var parsejson = require('parsejson');
-var parseqs = require('parseqs');
-
-/**
- * Module exports.
- */
-
-module.exports = Socket;
-
-/**
- * Noop function.
- *
- * @api private
- */
-
-function noop(){}
-
-/**
- * Socket constructor.
- *
- * @param {String|Object} uri or options
- * @param {Object} options
- * @api public
- */
-
-function Socket(uri, opts){
-  if (!(this instanceof Socket)) return new Socket(uri, opts);
-
-  opts = opts || {};
-
-  if (uri && 'object' == typeof uri) {
-    opts = uri;
-    uri = null;
-  }
-
-  if (uri) {
-    uri = parseuri(uri);
-    opts.hostname = uri.host;
-    opts.secure = uri.protocol == 'https' || uri.protocol == 'wss';
-    opts.port = uri.port;
-    if (uri.query) opts.query = uri.query;
-  } else if (opts.host) {
-    opts.hostname = parseuri(opts.host).host;
-  }
-
-  this.secure = null != opts.secure ? opts.secure :
-    (global.location && 'https:' == location.protocol);
-
-  if (opts.hostname && !opts.port) {
-    // if no port is specified manually, use the protocol default
-    opts.port = this.secure ? '443' : '80';
-  }
-
-  this.agent = opts.agent || false;
-  this.hostname = opts.hostname ||
-    (global.location ? location.hostname : 'localhost');
-  this.port = opts.port || (global.location && location.port ?
-       location.port :
-       (this.secure ? 443 : 80));
-  this.query = opts.query || {};
-  if ('string' == typeof this.query) this.query = parseqs.decode(this.query);
-  this.upgrade = false !== opts.upgrade;
-  this.path = (opts.path || '/engine.io').replace(/\/$/, '') + '/';
-  this.forceJSONP = !!opts.forceJSONP;
-  this.jsonp = false !== opts.jsonp;
-  this.forceBase64 = !!opts.forceBase64;
-  this.enablesXDR = !!opts.enablesXDR;
-  this.timestampParam = opts.timestampParam || 't';
-  this.timestampRequests = opts.timestampRequests;
-  this.transports = opts.transports || ['polling', 'websocket'];
-  this.readyState = '';
-  this.writeBuffer = [];
-  this.policyPort = opts.policyPort || 843;
-  this.rememberUpgrade = opts.rememberUpgrade || false;
-  this.binaryType = null;
-  this.onlyBinaryUpgrades = opts.onlyBinaryUpgrades;
-  this.perMessageDeflate = false !== opts.perMessageDeflate ? (opts.perMessageDeflate || {}) : false;
-
-  if (true === this.perMessageDeflate) this.perMessageDeflate = {};
-  if (this.perMessageDeflate && null == this.perMessageDeflate.threshold) {
-    this.perMessageDeflate.threshold = 1024;
-  }
-
-  // SSL options for Node.js client
-  this.pfx = opts.pfx || null;
-  this.key = opts.key || null;
-  this.passphrase = opts.passphrase || null;
-  this.cert = opts.cert || null;
-  this.ca = opts.ca || null;
-  this.ciphers = opts.ciphers || null;
-  this.rejectUnauthorized = opts.rejectUnauthorized === undefined ? null : opts.rejectUnauthorized;
-
-  // other options for Node.js client
-  var freeGlobal = typeof global == 'object' && global;
-  if (freeGlobal.global === freeGlobal) {
-    if (opts.extraHeaders && Object.keys(opts.extraHeaders).length > 0) {
-      this.extraHeaders = opts.extraHeaders;
-    }
-  }
-
-  this.open();
-}
-
-Socket.priorWebsocketSuccess = false;
-
-/**
- * Mix in `Emitter`.
- */
-
-Emitter(Socket.prototype);
-
-/**
- * Protocol version.
- *
- * @api public
- */
-
-Socket.protocol = parser.protocol; // this is an int
-
-/**
- * Expose deps for legacy compatibility
- * and standalone browser access.
- */
-
-Socket.Socket = Socket;
-Socket.Transport = require('./transport');
-Socket.transports = require('./transports');
-Socket.parser = require('engine.io-parser');
-
-/**
- * Creates transport of the given type.
- *
- * @param {String} transport name
- * @return {Transport}
- * @api private
- */
-
-Socket.prototype.createTransport = function (name) {
-  debug('creating transport "%s"', name);
-  var query = clone(this.query);
-
-  // append engine.io protocol identifier
-  query.EIO = parser.protocol;
-
-  // transport name
-  query.transport = name;
-
-  // session id if we already have one
-  if (this.id) query.sid = this.id;
-
-  var transport = new transports[name]({
-    agent: this.agent,
-    hostname: this.hostname,
-    port: this.port,
-    secure: this.secure,
-    path: this.path,
-    query: query,
-    forceJSONP: this.forceJSONP,
-    jsonp: this.jsonp,
-    forceBase64: this.forceBase64,
-    enablesXDR: this.enablesXDR,
-    timestampRequests: this.timestampRequests,
-    timestampParam: this.timestampParam,
-    policyPort: this.policyPort,
-    socket: this,
-    pfx: this.pfx,
-    key: this.key,
-    passphrase: this.passphrase,
-    cert: this.cert,
-    ca: this.ca,
-    ciphers: this.ciphers,
-    rejectUnauthorized: this.rejectUnauthorized,
-    perMessageDeflate: this.perMessageDeflate,
-    extraHeaders: this.extraHeaders
-  });
-
-  return transport;
-};
-
-function clone (obj) {
-  var o = {};
-  for (var i in obj) {
-    if (obj.hasOwnProperty(i)) {
-      o[i] = obj[i];
-    }
-  }
-  return o;
-}
-
-/**
- * Initializes transport to use and starts probe.
- *
- * @api private
- */
-Socket.prototype.open = function () {
-  var transport;
-  if (this.rememberUpgrade && Socket.priorWebsocketSuccess && this.transports.indexOf('websocket') != -1) {
-    transport = 'websocket';
-  } else if (0 === this.transports.length) {
-    // Emit error on next tick so it can be listened to
-    var self = this;
-    setTimeout(function() {
-      self.emit('error', 'No transports available');
-    }, 0);
-    return;
-  } else {
-    transport = this.transports[0];
-  }
-  this.readyState = 'opening';
-
-  // Retry with the next transport if the transport is disabled (jsonp: false)
-  try {
-    transport = this.createTransport(transport);
-  } catch (e) {
-    this.transports.shift();
-    this.open();
-    return;
-  }
-
-  transport.open();
-  this.setTransport(transport);
-};
-
-/**
- * Sets the current transport. Disables the existing one (if any).
- *
- * @api private
- */
-
-Socket.prototype.setTransport = function(transport){
-  debug('setting transport %s', transport.name);
-  var self = this;
-
-  if (this.transport) {
-    debug('clearing existing transport %s', this.transport.name);
-    this.transport.removeAllListeners();
-  }
-
-  // set up transport
-  this.transport = transport;
-
-  // set up transport listeners
-  transport
-  .on('drain', function(){
-    self.onDrain();
-  })
-  .on('packet', function(packet){
-    self.onPacket(packet);
-  })
-  .on('error', function(e){
-    self.onError(e);
-  })
-  .on('close', function(){
-    self.onClose('transport close');
-  });
-};
-
-/**
- * Probes a transport.
- *
- * @param {String} transport name
- * @api private
- */
-
-Socket.prototype.probe = function (name) {
-  debug('probing transport "%s"', name);
-  var transport = this.createTransport(name, { probe: 1 })
-    , failed = false
-    , self = this;
-
-  Socket.priorWebsocketSuccess = false;
-
-  function onTransportOpen(){
-    if (self.onlyBinaryUpgrades) {
-      var upgradeLosesBinary = !this.supportsBinary && self.transport.supportsBinary;
-      failed = failed || upgradeLosesBinary;
-    }
-    if (failed) return;
-
-    debug('probe transport "%s" opened', name);
-    transport.send([{ type: 'ping', data: 'probe' }]);
-    transport.once('packet', function (msg) {
-      if (failed) return;
-      if ('pong' == msg.type && 'probe' == msg.data) {
-        debug('probe transport "%s" pong', name);
-        self.upgrading = true;
-        self.emit('upgrading', transport);
-        if (!transport) return;
-        Socket.priorWebsocketSuccess = 'websocket' == transport.name;
-
-        debug('pausing current transport "%s"', self.transport.name);
-        self.transport.pause(function () {
-          if (failed) return;
-          if ('closed' == self.readyState) return;
-          debug('changing transport and sending upgrade packet');
-
-          cleanup();
-
-          self.setTransport(transport);
-          transport.send([{ type: 'upgrade' }]);
-          self.emit('upgrade', transport);
-          transport = null;
-          self.upgrading = false;
-          self.flush();
-        });
-      } else {
-        debug('probe transport "%s" failed', name);
-        var err = new Error('probe error');
-        err.transport = transport.name;
-        self.emit('upgradeError', err);
-      }
-    });
-  }
-
-  function freezeTransport() {
-    if (failed) return;
-
-    // Any callback called by transport should be ignored since now
-    failed = true;
-
-    cleanup();
-
-    transport.close();
-    transport = null;
-  }
-
-  //Handle any error that happens while probing
-  function onerror(err) {
-    var error = new Error('probe error: ' + err);
-    error.transport = transport.name;
-
-    freezeTransport();
-
-    debug('probe transport "%s" failed because of error: %s', name, err);
-
-    self.emit('upgradeError', error);
-  }
-
-  function onTransportClose(){
-    onerror("transport closed");
-  }
-
-  //When the socket is closed while we're probing
-  function onclose(){
-    onerror("socket closed");
-  }
-
-  //When the socket is upgraded while we're probing
-  function onupgrade(to){
-    if (transport && to.name != transport.name) {
-      debug('"%s" works - aborting "%s"', to.name, transport.name);
-      freezeTransport();
-    }
-  }
-
-  //Remove all listeners on the transport and on self
-  function cleanup(){
-    transport.removeListener('open', onTransportOpen);
-    transport.removeListener('error', onerror);
-    transport.removeListener('close', onTransportClose);
-    self.removeListener('close', onclose);
-    self.removeListener('upgrading', onupgrade);
-  }
-
-  transport.once('open', onTransportOpen);
-  transport.once('error', onerror);
-  transport.once('close', onTransportClose);
-
-  this.once('close', onclose);
-  this.once('upgrading', onupgrade);
-
-  transport.open();
-
-};
-
-/**
- * Called when connection is deemed open.
- *
- * @api public
- */
-
-Socket.prototype.onOpen = function () {
-  debug('socket open');
-  this.readyState = 'open';
-  Socket.priorWebsocketSuccess = 'websocket' == this.transport.name;
-  this.emit('open');
-  this.flush();
-
-  // we check for `readyState` in case an `open`
-  // listener already closed the socket
-  if ('open' == this.readyState && this.upgrade && this.transport.pause) {
-    debug('starting upgrade probes');
-    for (var i = 0, l = this.upgrades.length; i < l; i++) {
-      this.probe(this.upgrades[i]);
-    }
-  }
-};
-
-/**
- * Handles a packet.
- *
- * @api private
- */
-
-Socket.prototype.onPacket = function (packet) {
-  if ('opening' == this.readyState || 'open' == this.readyState) {
-    debug('socket receive: type "%s", data "%s"', packet.type, packet.data);
-
-    this.emit('packet', packet);
-
-    // Socket is live - any packet counts
-    this.emit('heartbeat');
-
-    switch (packet.type) {
-      case 'open':
-        this.onHandshake(parsejson(packet.data));
-        break;
-
-      case 'pong':
-        this.setPing();
-        this.emit('pong');
-        break;
-
-      case 'error':
-        var err = new Error('server error');
-        err.code = packet.data;
-        this.onError(err);
-        break;
-
-      case 'message':
-        this.emit('data', packet.data);
-        this.emit('message', packet.data);
-        break;
-    }
-  } else {
-    debug('packet received with socket readyState "%s"', this.readyState);
-  }
-};
-
-/**
- * Called upon handshake completion.
- *
- * @param {Object} handshake obj
- * @api private
- */
-
-Socket.prototype.onHandshake = function (data) {
-  this.emit('handshake', data);
-  this.id = data.sid;
-  this.transport.query.sid = data.sid;
-  this.upgrades = this.filterUpgrades(data.upgrades);
-  this.pingInterval = data.pingInterval;
-  this.pingTimeout = data.pingTimeout;
-  this.onOpen();
-  // In case open handler closes socket
-  if  ('closed' == this.readyState) return;
-  this.setPing();
-
-  // Prolong liveness of socket on heartbeat
-  this.removeListener('heartbeat', this.onHeartbeat);
-  this.on('heartbeat', this.onHeartbeat);
-};
-
-/**
- * Resets ping timeout.
- *
- * @api private
- */
-
-Socket.prototype.onHeartbeat = function (timeout) {
-  clearTimeout(this.pingTimeoutTimer);
-  var self = this;
-  self.pingTimeoutTimer = setTimeout(function () {
-    if ('closed' == self.readyState) return;
-    self.onClose('ping timeout');
-  }, timeout || (self.pingInterval + self.pingTimeout));
-};
-
-/**
- * Pings server every `this.pingInterval` and expects response
- * within `this.pingTimeout` or closes connection.
- *
- * @api private
- */
-
-Socket.prototype.setPing = function () {
-  var self = this;
-  clearTimeout(self.pingIntervalTimer);
-  self.pingIntervalTimer = setTimeout(function () {
-    debug('writing ping packet - expecting pong within %sms', self.pingTimeout);
-    self.ping();
-    self.onHeartbeat(self.pingTimeout);
-  }, self.pingInterval);
-};
-
-/**
-* Sends a ping packet.
-*
-* @api private
-*/
-
-Socket.prototype.ping = function () {
-  var self = this;
-  this.sendPacket('ping', function(){
-    self.emit('ping');
-  });
-};
-
-/**
- * Called on `drain` event
- *
- * @api private
- */
-
-Socket.prototype.onDrain = function() {
-  this.writeBuffer.splice(0, this.prevBufferLen);
-
-  // setting prevBufferLen = 0 is very important
-  // for example, when upgrading, upgrade packet is sent over,
-  // and a nonzero prevBufferLen could cause problems on `drain`
-  this.prevBufferLen = 0;
-
-  if (0 === this.writeBuffer.length) {
-    this.emit('drain');
-  } else {
-    this.flush();
-  }
-};
-
-/**
- * Flush write buffers.
- *
- * @api private
- */
-
-Socket.prototype.flush = function () {
-  if ('closed' != this.readyState && this.transport.writable &&
-    !this.upgrading && this.writeBuffer.length) {
-    debug('flushing %d packets in socket', this.writeBuffer.length);
-    this.transport.send(this.writeBuffer);
-    // keep track of current length of writeBuffer
-    // splice writeBuffer and callbackBuffer on `drain`
-    this.prevBufferLen = this.writeBuffer.length;
-    this.emit('flush');
-  }
-};
-
-/**
- * Sends a message.
- *
- * @param {String} message.
- * @param {Function} callback function.
- * @param {Object} options.
- * @return {Socket} for chaining.
- * @api public
- */
-
-Socket.prototype.write =
-Socket.prototype.send = function (msg, options, fn) {
-  this.sendPacket('message', msg, options, fn);
-  return this;
-};
-
-/**
- * Sends a packet.
- *
- * @param {String} packet type.
- * @param {String} data.
- * @param {Object} options.
- * @param {Function} callback function.
- * @api private
- */
-
-Socket.prototype.sendPacket = function (type, data, options, fn) {
-  if('function' == typeof data) {
-    fn = data;
-    data = undefined;
-  }
-
-  if ('function' == typeof options) {
-    fn = options;
-    options = null;
-  }
-
-  if ('closing' == this.readyState || 'closed' == this.readyState) {
-    return;
-  }
-
-  options = options || {};
-  options.compress = false !== options.compress;
-
-  var packet = {
-    type: type,
-    data: data,
-    options: options
-  };
-  this.emit('packetCreate', packet);
-  this.writeBuffer.push(packet);
-  if (fn) this.once('flush', fn);
-  this.flush();
-};
-
-/**
- * Closes the connection.
- *
- * @api private
- */
-
-Socket.prototype.close = function () {
-  if ('opening' == this.readyState || 'open' == this.readyState) {
-    this.readyState = 'closing';
-
-    var self = this;
-
-    if (this.writeBuffer.length) {
-      this.once('drain', function() {
-        if (this.upgrading) {
-          waitForUpgrade();
-        } else {
-          close();
-        }
-      });
-    } else if (this.upgrading) {
-      waitForUpgrade();
-    } else {
-      close();
-    }
-  }
-
-  function close() {
-    self.onClose('forced close');
-    debug('socket closing - telling transport to close');
-    self.transport.close();
-  }
-
-  function cleanupAndClose() {
-    self.removeListener('upgrade', cleanupAndClose);
-    self.removeListener('upgradeError', cleanupAndClose);
-    close();
-  }
-
-  function waitForUpgrade() {
-    // wait for upgrade to finish since we can't send packets while pausing a transport
-    self.once('upgrade', cleanupAndClose);
-    self.once('upgradeError', cleanupAndClose);
-  }
-
-  return this;
-};
-
-/**
- * Called upon transport error
- *
- * @api private
- */
-
-Socket.prototype.onError = function (err) {
-  debug('socket error %j', err);
-  Socket.priorWebsocketSuccess = false;
-  this.emit('error', err);
-  this.onClose('transport error', err);
-};
-
-/**
- * Called upon transport close.
- *
- * @api private
- */
-
-Socket.prototype.onClose = function (reason, desc) {
-  if ('opening' == this.readyState || 'open' == this.readyState || 'closing' == this.readyState) {
-    debug('socket close with reason: "%s"', reason);
-    var self = this;
-
-    // clear timers
-    clearTimeout(this.pingIntervalTimer);
-    clearTimeout(this.pingTimeoutTimer);
-
-    // stop event from firing again for transport
-    this.transport.removeAllListeners('close');
-
-    // ensure transport won't stay open
-    this.transport.close();
-
-    // ignore further transport communication
-    this.transport.removeAllListeners();
-
-    // set ready state
-    this.readyState = 'closed';
-
-    // clear session id
-    this.id = null;
-
-    // emit close event
-    this.emit('close', reason, desc);
-
-    // clean buffers after, so users can still
-    // grab the buffers on `close` event
-    self.writeBuffer = [];
-    self.prevBufferLen = 0;
-  }
-};
-
-/**
- * Filters upgrades, returning only those matching client transports.
- *
- * @param {Array} server upgrades
- * @api private
- *
- */
-
-Socket.prototype.filterUpgrades = function (upgrades) {
-  var filteredUpgrades = [];
-  for (var i = 0, j = upgrades.length; i<j; i++) {
-    if (~index(this.transports, upgrades[i])) filteredUpgrades.push(upgrades[i]);
-  }
-  return filteredUpgrades;
-};
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{"./transport":17,"./transports":18,"component-emitter":10,"debug":12,"engine.io-parser":24,"indexof":31,"parsejson":33,"parseqs":34,"parseuri":35}],17:[function(require,module,exports){
-/**
- * Module dependencies.
- */
-
-var parser = require('engine.io-parser');
-var Emitter = require('component-emitter');
-
-/**
- * Module exports.
- */
-
-module.exports = Transport;
-
-/**
- * Transport abstract constructor.
- *
- * @param {Object} options.
- * @api private
- */
-
-function Transport (opts) {
-  this.path = opts.path;
-  this.hostname = opts.hostname;
-  this.port = opts.port;
-  this.secure = opts.secure;
-  this.query = opts.query;
-  this.timestampParam = opts.timestampParam;
-  this.timestampRequests = opts.timestampRequests;
-  this.readyState = '';
-  this.agent = opts.agent || false;
-  this.socket = opts.socket;
-  this.enablesXDR = opts.enablesXDR;
-
-  // SSL options for Node.js client
-  this.pfx = opts.pfx;
-  this.key = opts.key;
-  this.passphrase = opts.passphrase;
-  this.cert = opts.cert;
-  this.ca = opts.ca;
-  this.ciphers = opts.ciphers;
-  this.rejectUnauthorized = opts.rejectUnauthorized;
-
-  // other options for Node.js client
-  this.extraHeaders = opts.extraHeaders;
-}
-
-/**
- * Mix in `Emitter`.
- */
-
-Emitter(Transport.prototype);
-
-/**
- * Emits an error.
- *
- * @param {String} str
- * @return {Transport} for chaining
- * @api public
- */
-
-Transport.prototype.onError = function (msg, desc) {
-  var err = new Error(msg);
-  err.type = 'TransportError';
-  err.description = desc;
-  this.emit('error', err);
-  return this;
-};
-
-/**
- * Opens the transport.
- *
- * @api public
- */
-
-Transport.prototype.open = function () {
-  if ('closed' == this.readyState || '' == this.readyState) {
-    this.readyState = 'opening';
-    this.doOpen();
-  }
-
-  return this;
-};
-
-/**
- * Closes the transport.
- *
- * @api private
- */
-
-Transport.prototype.close = function () {
-  if ('opening' == this.readyState || 'open' == this.readyState) {
-    this.doClose();
-    this.onClose();
-  }
-
-  return this;
-};
-
-/**
- * Sends multiple packets.
- *
- * @param {Array} packets
- * @api private
- */
-
-Transport.prototype.send = function(packets){
-  if ('open' == this.readyState) {
-    this.write(packets);
-  } else {
-    throw new Error('Transport not open');
-  }
-};
-
-/**
- * Called upon open
- *
- * @api private
- */
-
-Transport.prototype.onOpen = function () {
-  this.readyState = 'open';
-  this.writable = true;
-  this.emit('open');
-};
-
-/**
- * Called with data.
- *
- * @param {String} data
- * @api private
- */
-
-Transport.prototype.onData = function(data){
-  var packet = parser.decodePacket(data, this.socket.binaryType);
-  this.onPacket(packet);
-};
-
-/**
- * Called with a decoded packet.
- */
-
-Transport.prototype.onPacket = function (packet) {
-  this.emit('packet', packet);
-};
-
-/**
- * Called upon close.
- *
- * @api private
- */
-
-Transport.prototype.onClose = function () {
-  this.readyState = 'closed';
-  this.emit('close');
-};
-
-},{"component-emitter":10,"engine.io-parser":24}],18:[function(require,module,exports){
-(function (global){
-/**
- * Module dependencies
- */
-
-var XMLHttpRequest = require('xmlhttprequest-ssl');
-var XHR = require('./polling-xhr');
-var JSONP = require('./polling-jsonp');
-var websocket = require('./websocket');
-
-/**
- * Export transports.
- */
-
-exports.polling = polling;
-exports.websocket = websocket;
-
-/**
- * Polling transport polymorphic constructor.
- * Decides on xhr vs jsonp based on feature detection.
- *
- * @api private
- */
-
-function polling(opts){
-  var xhr;
-  var xd = false;
-  var xs = false;
-  var jsonp = false !== opts.jsonp;
-
-  if (global.location) {
-    var isSSL = 'https:' == location.protocol;
-    var port = location.port;
-
-    // some user agents have empty `location.port`
-    if (!port) {
-      port = isSSL ? 443 : 80;
-    }
-
-    xd = opts.hostname != location.hostname || port != opts.port;
-    xs = opts.secure != isSSL;
-  }
-
-  opts.xdomain = xd;
-  opts.xscheme = xs;
-  xhr = new XMLHttpRequest(opts);
-
-  if ('open' in xhr && !opts.forceJSONP) {
-    return new XHR(opts);
-  } else {
-    if (!jsonp) throw new Error('JSONP disabled');
-    return new JSONP(opts);
-  }
-}
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{"./polling-jsonp":19,"./polling-xhr":20,"./websocket":22,"xmlhttprequest-ssl":23}],19:[function(require,module,exports){
-(function (global){
-
-/**
- * Module requirements.
- */
-
-var Polling = require('./polling');
-var inherit = require('component-inherit');
-
-/**
- * Module exports.
- */
-
-module.exports = JSONPPolling;
-
-/**
- * Cached regular expressions.
- */
-
-var rNewline = /\n/g;
-var rEscapedNewline = /\\n/g;
-
-/**
- * Global JSONP callbacks.
- */
-
-var callbacks;
-
-/**
- * Callbacks count.
- */
-
-var index = 0;
-
-/**
- * Noop.
- */
-
-function empty () { }
-
-/**
- * JSONP Polling constructor.
- *
- * @param {Object} opts.
- * @api public
- */
-
-function JSONPPolling (opts) {
-  Polling.call(this, opts);
-
-  this.query = this.query || {};
-
-  // define global callbacks array if not present
-  // we do this here (lazily) to avoid unneeded global pollution
-  if (!callbacks) {
-    // we need to consider multiple engines in the same page
-    if (!global.___eio) global.___eio = [];
-    callbacks = global.___eio;
-  }
-
-  // callback identifier
-  this.index = callbacks.length;
-
-  // add callback to jsonp global
-  var self = this;
-  callbacks.push(function (msg) {
-    self.onData(msg);
-  });
-
-  // append to query string
-  this.query.j = this.index;
-
-  // prevent spurious errors from being emitted when the window is unloaded
-  if (global.document && global.addEventListener) {
-    global.addEventListener('beforeunload', function () {
-      if (self.script) self.script.onerror = empty;
-    }, false);
-  }
-}
-
-/**
- * Inherits from Polling.
- */
-
-inherit(JSONPPolling, Polling);
-
-/*
- * JSONP only supports binary as base64 encoded strings
- */
-
-JSONPPolling.prototype.supportsBinary = false;
-
-/**
- * Closes the socket.
- *
- * @api private
- */
-
-JSONPPolling.prototype.doClose = function () {
-  if (this.script) {
-    this.script.parentNode.removeChild(this.script);
-    this.script = null;
-  }
-
-  if (this.form) {
-    this.form.parentNode.removeChild(this.form);
-    this.form = null;
-    this.iframe = null;
-  }
-
-  Polling.prototype.doClose.call(this);
-};
-
-/**
- * Starts a poll cycle.
- *
- * @api private
- */
-
-JSONPPolling.prototype.doPoll = function () {
-  var self = this;
-  var script = document.createElement('script');
-
-  if (this.script) {
-    this.script.parentNode.removeChild(this.script);
-    this.script = null;
-  }
-
-  script.async = true;
-  script.src = this.uri();
-  script.onerror = function(e){
-    self.onError('jsonp poll error',e);
-  };
-
-  var insertAt = document.getElementsByTagName('script')[0];
-  if (insertAt) {
-    insertAt.parentNode.insertBefore(script, insertAt);
-  }
-  else {
-    (document.head || document.body).appendChild(script);
-  }
-  this.script = script;
-
-  var isUAgecko = 'undefined' != typeof navigator && /gecko/i.test(navigator.userAgent);
-  
-  if (isUAgecko) {
-    setTimeout(function () {
-      var iframe = document.createElement('iframe');
-      document.body.appendChild(iframe);
-      document.body.removeChild(iframe);
-    }, 100);
-  }
-};
-
-/**
- * Writes with a hidden iframe.
- *
- * @param {String} data to send
- * @param {Function} called upon flush.
- * @api private
- */
-
-JSONPPolling.prototype.doWrite = function (data, fn) {
-  var self = this;
-
-  if (!this.form) {
-    var form = document.createElement('form');
-    var area = document.createElement('textarea');
-    var id = this.iframeId = 'eio_iframe_' + this.index;
-    var iframe;
-
-    form.className = 'socketio';
-    form.style.position = 'absolute';
-    form.style.top = '-1000px';
-    form.style.left = '-1000px';
-    form.target = id;
-    form.method = 'POST';
-    form.setAttribute('accept-charset', 'utf-8');
-    area.name = 'd';
-    form.appendChild(area);
-    document.body.appendChild(form);
-
-    this.form = form;
-    this.area = area;
-  }
-
-  this.form.action = this.uri();
-
-  function complete () {
-    initIframe();
-    fn();
-  }
-
-  function initIframe () {
-    if (self.iframe) {
-      try {
-        self.form.removeChild(self.iframe);
-      } catch (e) {
-        self.onError('jsonp polling iframe removal error', e);
-      }
-    }
-
-    try {
-      // ie6 dynamic iframes with target="" support (thanks Chris Lambacher)
-      var html = '<iframe src="javascript:0" name="'+ self.iframeId +'">';
-      iframe = document.createElement(html);
-    } catch (e) {
-      iframe = document.createElement('iframe');
-      iframe.name = self.iframeId;
-      iframe.src = 'javascript:0';
-    }
-
-    iframe.id = self.iframeId;
-
-    self.form.appendChild(iframe);
-    self.iframe = iframe;
-  }
-
-  initIframe();
-
-  // escape \n to prevent it from being converted into \r\n by some UAs
-  // double escaping is required for escaped new lines because unescaping of new lines can be done safely on server-side
-  data = data.replace(rEscapedNewline, '\\\n');
-  this.area.value = data.replace(rNewline, '\\n');
-
-  try {
-    this.form.submit();
-  } catch(e) {}
-
-  if (this.iframe.attachEvent) {
-    this.iframe.onreadystatechange = function(){
-      if (self.iframe.readyState == 'complete') {
-        complete();
-      }
-    };
-  } else {
-    this.iframe.onload = complete;
-  }
-};
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{"./polling":21,"component-inherit":11}],20:[function(require,module,exports){
-(function (global){
-/**
- * Module requirements.
- */
-
-var XMLHttpRequest = require('xmlhttprequest-ssl');
-var Polling = require('./polling');
-var Emitter = require('component-emitter');
-var inherit = require('component-inherit');
-var debug = require('debug')('engine.io-client:polling-xhr');
-
-/**
- * Module exports.
- */
-
-module.exports = XHR;
-module.exports.Request = Request;
-
-/**
- * Empty function
- */
-
-function empty(){}
-
-/**
- * XHR Polling constructor.
- *
- * @param {Object} opts
- * @api public
- */
-
-function XHR(opts){
-  Polling.call(this, opts);
-
-  if (global.location) {
-    var isSSL = 'https:' == location.protocol;
-    var port = location.port;
-
-    // some user agents have empty `location.port`
-    if (!port) {
-      port = isSSL ? 443 : 80;
-    }
-
-    this.xd = opts.hostname != global.location.hostname ||
-      port != opts.port;
-    this.xs = opts.secure != isSSL;
-  } else {
-    this.extraHeaders = opts.extraHeaders;
-  }
-}
-
-/**
- * Inherits from Polling.
- */
-
-inherit(XHR, Polling);
-
-/**
- * XHR supports binary
- */
-
-XHR.prototype.supportsBinary = true;
-
-/**
- * Creates a request.
- *
- * @param {String} method
- * @api private
- */
-
-XHR.prototype.request = function(opts){
-  opts = opts || {};
-  opts.uri = this.uri();
-  opts.xd = this.xd;
-  opts.xs = this.xs;
-  opts.agent = this.agent || false;
-  opts.supportsBinary = this.supportsBinary;
-  opts.enablesXDR = this.enablesXDR;
-
-  // SSL options for Node.js client
-  opts.pfx = this.pfx;
-  opts.key = this.key;
-  opts.passphrase = this.passphrase;
-  opts.cert = this.cert;
-  opts.ca = this.ca;
-  opts.ciphers = this.ciphers;
-  opts.rejectUnauthorized = this.rejectUnauthorized;
-
-  // other options for Node.js client
-  opts.extraHeaders = this.extraHeaders;
-
-  return new Request(opts);
-};
-
-/**
- * Sends data.
- *
- * @param {String} data to send.
- * @param {Function} called upon flush.
- * @api private
- */
-
-XHR.prototype.doWrite = function(data, fn){
-  var isBinary = typeof data !== 'string' && data !== undefined;
-  var req = this.request({ method: 'POST', data: data, isBinary: isBinary });
-  var self = this;
-  req.on('success', fn);
-  req.on('error', function(err){
-    self.onError('xhr post error', err);
-  });
-  this.sendXhr = req;
-};
-
-/**
- * Starts a poll cycle.
- *
- * @api private
- */
-
-XHR.prototype.doPoll = function(){
-  debug('xhr poll');
-  var req = this.request();
-  var self = this;
-  req.on('data', function(data){
-    self.onData(data);
-  });
-  req.on('error', function(err){
-    self.onError('xhr poll error', err);
-  });
-  this.pollXhr = req;
-};
-
-/**
- * Request constructor
- *
- * @param {Object} options
- * @api public
- */
-
-function Request(opts){
-  this.method = opts.method || 'GET';
-  this.uri = opts.uri;
-  this.xd = !!opts.xd;
-  this.xs = !!opts.xs;
-  this.async = false !== opts.async;
-  this.data = undefined != opts.data ? opts.data : null;
-  this.agent = opts.agent;
-  this.isBinary = opts.isBinary;
-  this.supportsBinary = opts.supportsBinary;
-  this.enablesXDR = opts.enablesXDR;
-
-  // SSL options for Node.js client
-  this.pfx = opts.pfx;
-  this.key = opts.key;
-  this.passphrase = opts.passphrase;
-  this.cert = opts.cert;
-  this.ca = opts.ca;
-  this.ciphers = opts.ciphers;
-  this.rejectUnauthorized = opts.rejectUnauthorized;
-
-  // other options for Node.js client
-  this.extraHeaders = opts.extraHeaders;
-
-  this.create();
-}
-
-/**
- * Mix in `Emitter`.
- */
-
-Emitter(Request.prototype);
-
-/**
- * Creates the XHR object and sends the request.
- *
- * @api private
- */
-
-Request.prototype.create = function(){
-  var opts = { agent: this.agent, xdomain: this.xd, xscheme: this.xs, enablesXDR: this.enablesXDR };
-
-  // SSL options for Node.js client
-  opts.pfx = this.pfx;
-  opts.key = this.key;
-  opts.passphrase = this.passphrase;
-  opts.cert = this.cert;
-  opts.ca = this.ca;
-  opts.ciphers = this.ciphers;
-  opts.rejectUnauthorized = this.rejectUnauthorized;
-
-  var xhr = this.xhr = new XMLHttpRequest(opts);
-  var self = this;
-
-  try {
-    debug('xhr open %s: %s', this.method, this.uri);
-    xhr.open(this.method, this.uri, this.async);
-    try {
-      if (this.extraHeaders) {
-        xhr.setDisableHeaderCheck(true);
-        for (var i in this.extraHeaders) {
-          if (this.extraHeaders.hasOwnProperty(i)) {
-            xhr.setRequestHeader(i, this.extraHeaders[i]);
-          }
-        }
-      }
-    } catch (e) {}
-    if (this.supportsBinary) {
-      // This has to be done after open because Firefox is stupid
-      // http://stackoverflow.com/questions/13216903/get-binary-data-with-xmlhttprequest-in-a-firefox-extension
-      xhr.responseType = 'arraybuffer';
-    }
-
-    if ('POST' == this.method) {
-      try {
-        if (this.isBinary) {
-          xhr.setRequestHeader('Content-type', 'application/octet-stream');
-        } else {
-          xhr.setRequestHeader('Content-type', 'text/plain;charset=UTF-8');
-        }
-      } catch (e) {}
-    }
-
-    // ie6 check
-    if ('withCredentials' in xhr) {
-      xhr.withCredentials = true;
-    }
-
-    if (this.hasXDR()) {
-      xhr.onload = function(){
-        self.onLoad();
-      };
-      xhr.onerror = function(){
-        self.onError(xhr.responseText);
-      };
-    } else {
-      xhr.onreadystatechange = function(){
-        if (4 != xhr.readyState) return;
-        if (200 == xhr.status || 1223 == xhr.status) {
-          self.onLoad();
-        } else {
-          // make sure the `error` event handler that's user-set
-          // does not throw in the same tick and gets caught here
-          setTimeout(function(){
-            self.onError(xhr.status);
-          }, 0);
-        }
-      };
-    }
-
-    debug('xhr data %s', this.data);
-    xhr.send(this.data);
-  } catch (e) {
-    // Need to defer since .create() is called directly fhrom the constructor
-    // and thus the 'error' event can only be only bound *after* this exception
-    // occurs.  Therefore, also, we cannot throw here at all.
-    setTimeout(function() {
-      self.onError(e);
-    }, 0);
-    return;
-  }
-
-  if (global.document) {
-    this.index = Request.requestsCount++;
-    Request.requests[this.index] = this;
-  }
-};
-
-/**
- * Called upon successful response.
- *
- * @api private
- */
-
-Request.prototype.onSuccess = function(){
-  this.emit('success');
-  this.cleanup();
-};
-
-/**
- * Called if we have data.
- *
- * @api private
- */
-
-Request.prototype.onData = function(data){
-  this.emit('data', data);
-  this.onSuccess();
-};
-
-/**
- * Called upon error.
- *
- * @api private
- */
-
-Request.prototype.onError = function(err){
-  this.emit('error', err);
-  this.cleanup(true);
-};
-
-/**
- * Cleans up house.
- *
- * @api private
- */
-
-Request.prototype.cleanup = function(fromError){
-  if ('undefined' == typeof this.xhr || null === this.xhr) {
-    return;
-  }
-  // xmlhttprequest
-  if (this.hasXDR()) {
-    this.xhr.onload = this.xhr.onerror = empty;
-  } else {
-    this.xhr.onreadystatechange = empty;
-  }
-
-  if (fromError) {
-    try {
-      this.xhr.abort();
-    } catch(e) {}
-  }
-
-  if (global.document) {
-    delete Request.requests[this.index];
-  }
-
-  this.xhr = null;
-};
-
-/**
- * Called upon load.
- *
- * @api private
- */
-
-Request.prototype.onLoad = function(){
-  var data;
-  try {
-    var contentType;
-    try {
-      contentType = this.xhr.getResponseHeader('Content-Type').split(';')[0];
-    } catch (e) {}
-    if (contentType === 'application/octet-stream') {
-      data = this.xhr.response;
-    } else {
-      if (!this.supportsBinary) {
-        data = this.xhr.responseText;
-      } else {
-        try {
-          data = String.fromCharCode.apply(null, new Uint8Array(this.xhr.response));
-        } catch (e) {
-          var ui8Arr = new Uint8Array(this.xhr.response);
-          var dataArray = [];
-          for (var idx = 0, length = ui8Arr.length; idx < length; idx++) {
-            dataArray.push(ui8Arr[idx]);
-          }
-
-          data = String.fromCharCode.apply(null, dataArray);
-        }
-      }
-    }
-  } catch (e) {
-    this.onError(e);
-  }
-  if (null != data) {
-    this.onData(data);
-  }
-};
-
-/**
- * Check if it has XDomainRequest.
- *
- * @api private
- */
-
-Request.prototype.hasXDR = function(){
-  return 'undefined' !== typeof global.XDomainRequest && !this.xs && this.enablesXDR;
-};
-
-/**
- * Aborts the request.
- *
- * @api public
- */
-
-Request.prototype.abort = function(){
-  this.cleanup();
-};
-
-/**
- * Aborts pending requests when unloading the window. This is needed to prevent
- * memory leaks (e.g. when using IE) and to ensure that no spurious error is
- * emitted.
- */
-
-if (global.document) {
-  Request.requestsCount = 0;
-  Request.requests = {};
-  if (global.attachEvent) {
-    global.attachEvent('onunload', unloadHandler);
-  } else if (global.addEventListener) {
-    global.addEventListener('beforeunload', unloadHandler, false);
-  }
-}
-
-function unloadHandler() {
-  for (var i in Request.requests) {
-    if (Request.requests.hasOwnProperty(i)) {
-      Request.requests[i].abort();
-    }
-  }
-}
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{"./polling":21,"component-emitter":10,"component-inherit":11,"debug":12,"xmlhttprequest-ssl":23}],21:[function(require,module,exports){
-/**
- * Module dependencies.
- */
-
-var Transport = require('../transport');
-var parseqs = require('parseqs');
-var parser = require('engine.io-parser');
-var inherit = require('component-inherit');
-var yeast = require('yeast');
-var debug = require('debug')('engine.io-client:polling');
-
-/**
- * Module exports.
- */
-
-module.exports = Polling;
-
-/**
- * Is XHR2 supported?
- */
-
-var hasXHR2 = (function() {
-  var XMLHttpRequest = require('xmlhttprequest-ssl');
-  var xhr = new XMLHttpRequest({ xdomain: false });
-  return null != xhr.responseType;
-})();
-
-/**
- * Polling interface.
- *
- * @param {Object} opts
- * @api private
- */
-
-function Polling(opts){
-  var forceBase64 = (opts && opts.forceBase64);
-  if (!hasXHR2 || forceBase64) {
-    this.supportsBinary = false;
-  }
-  Transport.call(this, opts);
-}
-
-/**
- * Inherits from Transport.
- */
-
-inherit(Polling, Transport);
-
-/**
- * Transport name.
- */
-
-Polling.prototype.name = 'polling';
-
-/**
- * Opens the socket (triggers polling). We write a PING message to determine
- * when the transport is open.
- *
- * @api private
- */
-
-Polling.prototype.doOpen = function(){
-  this.poll();
-};
-
-/**
- * Pauses polling.
- *
- * @param {Function} callback upon buffers are flushed and transport is paused
- * @api private
- */
-
-Polling.prototype.pause = function(onPause){
-  var pending = 0;
-  var self = this;
-
-  this.readyState = 'pausing';
-
-  function pause(){
-    debug('paused');
-    self.readyState = 'paused';
-    onPause();
-  }
-
-  if (this.polling || !this.writable) {
-    var total = 0;
-
-    if (this.polling) {
-      debug('we are currently polling - waiting to pause');
-      total++;
-      this.once('pollComplete', function(){
-        debug('pre-pause polling complete');
-        --total || pause();
-      });
-    }
-
-    if (!this.writable) {
-      debug('we are currently writing - waiting to pause');
-      total++;
-      this.once('drain', function(){
-        debug('pre-pause writing complete');
-        --total || pause();
-      });
-    }
-  } else {
-    pause();
-  }
-};
-
-/**
- * Starts polling cycle.
- *
- * @api public
- */
-
-Polling.prototype.poll = function(){
-  debug('polling');
-  this.polling = true;
-  this.doPoll();
-  this.emit('poll');
-};
-
-/**
- * Overloads onData to detect payloads.
- *
- * @api private
- */
-
-Polling.prototype.onData = function(data){
-  var self = this;
-  debug('polling got data %s', data);
-  var callback = function(packet, index, total) {
-    // if its the first message we consider the transport open
-    if ('opening' == self.readyState) {
-      self.onOpen();
-    }
-
-    // if its a close packet, we close the ongoing requests
-    if ('close' == packet.type) {
-      self.onClose();
-      return false;
-    }
-
-    // otherwise bypass onData and handle the message
-    self.onPacket(packet);
-  };
-
-  // decode payload
-  parser.decodePayload(data, this.socket.binaryType, callback);
-
-  // if an event did not trigger closing
-  if ('closed' != this.readyState) {
-    // if we got data we're not polling
-    this.polling = false;
-    this.emit('pollComplete');
-
-    if ('open' == this.readyState) {
-      this.poll();
-    } else {
-      debug('ignoring poll - transport state "%s"', this.readyState);
-    }
-  }
-};
-
-/**
- * For polling, send a close packet.
- *
- * @api private
- */
-
-Polling.prototype.doClose = function(){
-  var self = this;
-
-  function close(){
-    debug('writing close packet');
-    self.write([{ type: 'close' }]);
-  }
-
-  if ('open' == this.readyState) {
-    debug('transport open - closing');
-    close();
-  } else {
-    // in case we're trying to close while
-    // handshaking is in progress (GH-164)
-    debug('transport not open - deferring close');
-    this.once('open', close);
-  }
-};
-
-/**
- * Writes a packets payload.
- *
- * @param {Array} data packets
- * @param {Function} drain callback
- * @api private
- */
-
-Polling.prototype.write = function(packets){
-  var self = this;
-  this.writable = false;
-  var callbackfn = function() {
-    self.writable = true;
-    self.emit('drain');
-  };
-
-  var self = this;
-  parser.encodePayload(packets, this.supportsBinary, function(data) {
-    self.doWrite(data, callbackfn);
-  });
-};
-
-/**
- * Generates uri for connection.
- *
- * @api private
- */
-
-Polling.prototype.uri = function(){
-  var query = this.query || {};
-  var schema = this.secure ? 'https' : 'http';
-  var port = '';
-
-  // cache busting is forced
-  if (false !== this.timestampRequests) {
-    query[this.timestampParam] = yeast();
-  }
-
-  if (!this.supportsBinary && !query.sid) {
-    query.b64 = 1;
-  }
-
-  query = parseqs.encode(query);
-
-  // avoid port if default for schema
-  if (this.port && (('https' == schema && this.port != 443) ||
-     ('http' == schema && this.port != 80))) {
-    port = ':' + this.port;
-  }
-
-  // prepend ? to query
-  if (query.length) {
-    query = '?' + query;
-  }
-
-  var ipv6 = this.hostname.indexOf(':') !== -1;
-  return schema + '://' + (ipv6 ? '[' + this.hostname + ']' : this.hostname) + port + this.path + query;
-};
-
-},{"../transport":17,"component-inherit":11,"debug":12,"engine.io-parser":24,"parseqs":34,"xmlhttprequest-ssl":23,"yeast":49}],22:[function(require,module,exports){
-(function (global){
-/**
- * Module dependencies.
- */
-
-var Transport = require('../transport');
-var parser = require('engine.io-parser');
-var parseqs = require('parseqs');
-var inherit = require('component-inherit');
-var yeast = require('yeast');
-var debug = require('debug')('engine.io-client:websocket');
-var BrowserWebSocket = global.WebSocket || global.MozWebSocket;
-
-/**
- * Get either the `WebSocket` or `MozWebSocket` globals
- * in the browser or try to resolve WebSocket-compatible
- * interface exposed by `ws` for Node-like environment.
- */
-
-var WebSocket = BrowserWebSocket;
-if (!WebSocket && typeof window === 'undefined') {
-  try {
-    WebSocket = require('ws');
-  } catch (e) { }
-}
-
-/**
- * Module exports.
- */
-
-module.exports = WS;
-
-/**
- * WebSocket transport constructor.
- *
- * @api {Object} connection options
- * @api public
- */
-
-function WS(opts){
-  var forceBase64 = (opts && opts.forceBase64);
-  if (forceBase64) {
-    this.supportsBinary = false;
-  }
-  this.perMessageDeflate = opts.perMessageDeflate;
-  Transport.call(this, opts);
-}
-
-/**
- * Inherits from Transport.
- */
-
-inherit(WS, Transport);
-
-/**
- * Transport name.
- *
- * @api public
- */
-
-WS.prototype.name = 'websocket';
-
-/*
- * WebSockets support binary
- */
-
-WS.prototype.supportsBinary = true;
-
-/**
- * Opens socket.
- *
- * @api private
- */
-
-WS.prototype.doOpen = function(){
-  if (!this.check()) {
-    // let probe timeout
-    return;
-  }
-
-  var self = this;
-  var uri = this.uri();
-  var protocols = void(0);
-  var opts = {
-    agent: this.agent,
-    perMessageDeflate: this.perMessageDeflate
-  };
-
-  // SSL options for Node.js client
-  opts.pfx = this.pfx;
-  opts.key = this.key;
-  opts.passphrase = this.passphrase;
-  opts.cert = this.cert;
-  opts.ca = this.ca;
-  opts.ciphers = this.ciphers;
-  opts.rejectUnauthorized = this.rejectUnauthorized;
-  if (this.extraHeaders) {
-    opts.headers = this.extraHeaders;
-  }
-
-  this.ws = BrowserWebSocket ? new WebSocket(uri) : new WebSocket(uri, protocols, opts);
-
-  if (this.ws.binaryType === undefined) {
-    this.supportsBinary = false;
-  }
-
-  if (this.ws.supports && this.ws.supports.binary) {
-    this.supportsBinary = true;
-    this.ws.binaryType = 'buffer';
-  } else {
-    this.ws.binaryType = 'arraybuffer';
-  }
-
-  this.addEventListeners();
-};
-
-/**
- * Adds event listeners to the socket
- *
- * @api private
- */
-
-WS.prototype.addEventListeners = function(){
-  var self = this;
-
-  this.ws.onopen = function(){
-    self.onOpen();
-  };
-  this.ws.onclose = function(){
-    self.onClose();
-  };
-  this.ws.onmessage = function(ev){
-    self.onData(ev.data);
-  };
-  this.ws.onerror = function(e){
-    self.onError('websocket error', e);
-  };
-};
-
-/**
- * Override `onData` to use a timer on iOS.
- * See: https://gist.github.com/mloughran/2052006
- *
- * @api private
- */
-
-if ('undefined' != typeof navigator
-  && /iPad|iPhone|iPod/i.test(navigator.userAgent)) {
-  WS.prototype.onData = function(data){
-    var self = this;
-    setTimeout(function(){
-      Transport.prototype.onData.call(self, data);
-    }, 0);
-  };
-}
-
-/**
- * Writes data to socket.
- *
- * @param {Array} array of packets.
- * @api private
- */
-
-WS.prototype.write = function(packets){
-  var self = this;
-  this.writable = false;
-
-  // encodePacket efficient as it uses WS framing
-  // no need for encodePayload
-  var total = packets.length;
-  for (var i = 0, l = total; i < l; i++) {
-    (function(packet) {
-      parser.encodePacket(packet, self.supportsBinary, function(data) {
-        if (!BrowserWebSocket) {
-          // always create a new object (GH-437)
-          var opts = {};
-          if (packet.options) {
-            opts.compress = packet.options.compress;
-          }
-
-          if (self.perMessageDeflate) {
-            var len = 'string' == typeof data ? global.Buffer.byteLength(data) : data.length;
-            if (len < self.perMessageDeflate.threshold) {
-              opts.compress = false;
-            }
-          }
-        }
-
-        //Sometimes the websocket has already been closed but the browser didn't
-        //have a chance of informing us about it yet, in that case send will
-        //throw an error
-        try {
-          if (BrowserWebSocket) {
-            // TypeError is thrown when passing the second argument on Safari
-            self.ws.send(data);
-          } else {
-            self.ws.send(data, opts);
-          }
-        } catch (e){
-          debug('websocket closed before onclose event');
-        }
-
-        --total || done();
-      });
-    })(packets[i]);
-  }
-
-  function done(){
-    self.emit('flush');
-
-    // fake drain
-    // defer to next tick to allow Socket to clear writeBuffer
-    setTimeout(function(){
-      self.writable = true;
-      self.emit('drain');
-    }, 0);
-  }
-};
-
-/**
- * Called upon close
- *
- * @api private
- */
-
-WS.prototype.onClose = function(){
-  Transport.prototype.onClose.call(this);
-};
-
-/**
- * Closes socket.
- *
- * @api private
- */
-
-WS.prototype.doClose = function(){
-  if (typeof this.ws !== 'undefined') {
-    this.ws.close();
-  }
-};
-
-/**
- * Generates uri for connection.
- *
- * @api private
- */
-
-WS.prototype.uri = function(){
-  var query = this.query || {};
-  var schema = this.secure ? 'wss' : 'ws';
-  var port = '';
-
-  // avoid port if default for schema
-  if (this.port && (('wss' == schema && this.port != 443)
-    || ('ws' == schema && this.port != 80))) {
-    port = ':' + this.port;
-  }
-
-  // append timestamp to URI
-  if (this.timestampRequests) {
-    query[this.timestampParam] = yeast();
-  }
-
-  // communicate binary support capabilities
-  if (!this.supportsBinary) {
-    query.b64 = 1;
-  }
-
-  query = parseqs.encode(query);
-
-  // prepend ? to query
-  if (query.length) {
-    query = '?' + query;
-  }
-
-  var ipv6 = this.hostname.indexOf(':') !== -1;
-  return schema + '://' + (ipv6 ? '[' + this.hostname + ']' : this.hostname) + port + this.path + query;
-};
-
-/**
- * Feature detection for WebSocket.
- *
- * @return {Boolean} whether this transport is available.
- * @api public
- */
-
-WS.prototype.check = function(){
-  return !!WebSocket && !('__initialize' in WebSocket && this.name === WS.prototype.name);
-};
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{"../transport":17,"component-inherit":11,"debug":12,"engine.io-parser":24,"parseqs":34,"ws":8,"yeast":49}],23:[function(require,module,exports){
-// browser shim for xmlhttprequest module
-var hasCORS = require('has-cors');
-
-module.exports = function(opts) {
-  var xdomain = opts.xdomain;
-
-  // scheme must be same when usign XDomainRequest
-  // http://blogs.msdn.com/b/ieinternals/archive/2010/05/13/xdomainrequest-restrictions-limitations-and-workarounds.aspx
-  var xscheme = opts.xscheme;
-
-  // XDomainRequest has a flow of not sending cookie, therefore it should be disabled as a default.
-  // https://github.com/Automattic/engine.io-client/pull/217
-  var enablesXDR = opts.enablesXDR;
-
-  // XMLHttpRequest can be disabled on IE
-  try {
-    if ('undefined' != typeof XMLHttpRequest && (!xdomain || hasCORS)) {
-      return new XMLHttpRequest();
-    }
-  } catch (e) { }
-
-  // Use XDomainRequest for IE8 if enablesXDR is true
-  // because loading bar keeps flashing when using jsonp-polling
-  // https://github.com/yujiosaka/socke.io-ie8-loading-example
-  try {
-    if ('undefined' != typeof XDomainRequest && !xscheme && enablesXDR) {
-      return new XDomainRequest();
-    }
-  } catch (e) { }
-
-  if (!xdomain) {
-    try {
-      return new ActiveXObject('Microsoft.XMLHTTP');
-    } catch(e) { }
-  }
-}
-
-},{"has-cors":30}],24:[function(require,module,exports){
-(function (global){
-/**
- * Module dependencies.
- */
-
-var keys = require('./keys');
-var hasBinary = require('has-binary');
-var sliceBuffer = require('arraybuffer.slice');
-var base64encoder = require('base64-arraybuffer');
-var after = require('after');
-var utf8 = require('utf8');
-
-/**
- * Check if we are running an android browser. That requires us to use
- * ArrayBuffer with polling transports...
- *
- * http://ghinda.net/jpeg-blob-ajax-android/
- */
-
-var isAndroid = navigator.userAgent.match(/Android/i);
-
-/**
- * Check if we are running in PhantomJS.
- * Uploading a Blob with PhantomJS does not work correctly, as reported here:
- * https://github.com/ariya/phantomjs/issues/11395
- * @type boolean
- */
-var isPhantomJS = /PhantomJS/i.test(navigator.userAgent);
-
-/**
- * When true, avoids using Blobs to encode payloads.
- * @type boolean
- */
-var dontSendBlobs = isAndroid || isPhantomJS;
-
-/**
- * Current protocol version.
- */
-
-exports.protocol = 3;
-
-/**
- * Packet types.
- */
-
-var packets = exports.packets = {
-    open:     0    // non-ws
-  , close:    1    // non-ws
-  , ping:     2
-  , pong:     3
-  , message:  4
-  , upgrade:  5
-  , noop:     6
-};
-
-var packetslist = keys(packets);
-
-/**
- * Premade error packet.
- */
-
-var err = { type: 'error', data: 'parser error' };
-
-/**
- * Create a blob api even for blob builder when vendor prefixes exist
- */
-
-var Blob = require('blob');
-
-/**
- * Encodes a packet.
- *
- *     <packet type id> [ <data> ]
- *
- * Example:
- *
- *     5hello world
- *     3
- *     4
- *
- * Binary is encoded in an identical principle
- *
- * @api private
- */
-
-exports.encodePacket = function (packet, supportsBinary, utf8encode, callback) {
-  if ('function' == typeof supportsBinary) {
-    callback = supportsBinary;
-    supportsBinary = false;
-  }
-
-  if ('function' == typeof utf8encode) {
-    callback = utf8encode;
-    utf8encode = null;
-  }
-
-  var data = (packet.data === undefined)
-    ? undefined
-    : packet.data.buffer || packet.data;
-
-  if (global.ArrayBuffer && data instanceof ArrayBuffer) {
-    return encodeArrayBuffer(packet, supportsBinary, callback);
-  } else if (Blob && data instanceof global.Blob) {
-    return encodeBlob(packet, supportsBinary, callback);
-  }
-
-  // might be an object with { base64: true, data: dataAsBase64String }
-  if (data && data.base64) {
-    return encodeBase64Object(packet, callback);
-  }
-
-  // Sending data as a utf-8 string
-  var encoded = packets[packet.type];
-
-  // data fragment is optional
-  if (undefined !== packet.data) {
-    encoded += utf8encode ? utf8.encode(String(packet.data)) : String(packet.data);
-  }
-
-  return callback('' + encoded);
-
-};
-
-function encodeBase64Object(packet, callback) {
-  // packet data is an object { base64: true, data: dataAsBase64String }
-  var message = 'b' + exports.packets[packet.type] + packet.data.data;
-  return callback(message);
-}
-
-/**
- * Encode packet helpers for binary types
- */
-
-function encodeArrayBuffer(packet, supportsBinary, callback) {
-  if (!supportsBinary) {
-    return exports.encodeBase64Packet(packet, callback);
-  }
-
-  var data = packet.data;
-  var contentArray = new Uint8Array(data);
-  var resultBuffer = new Uint8Array(1 + data.byteLength);
-
-  resultBuffer[0] = packets[packet.type];
-  for (var i = 0; i < contentArray.length; i++) {
-    resultBuffer[i+1] = contentArray[i];
-  }
-
-  return callback(resultBuffer.buffer);
-}
-
-function encodeBlobAsArrayBuffer(packet, supportsBinary, callback) {
-  if (!supportsBinary) {
-    return exports.encodeBase64Packet(packet, callback);
-  }
-
-  var fr = new FileReader();
-  fr.onload = function() {
-    packet.data = fr.result;
-    exports.encodePacket(packet, supportsBinary, true, callback);
-  };
-  return fr.readAsArrayBuffer(packet.data);
-}
-
-function encodeBlob(packet, supportsBinary, callback) {
-  if (!supportsBinary) {
-    return exports.encodeBase64Packet(packet, callback);
-  }
-
-  if (dontSendBlobs) {
-    return encodeBlobAsArrayBuffer(packet, supportsBinary, callback);
-  }
-
-  var length = new Uint8Array(1);
-  length[0] = packets[packet.type];
-  var blob = new Blob([length.buffer, packet.data]);
-
-  return callback(blob);
-}
-
-/**
- * Encodes a packet with binary data in a base64 string
- *
- * @param {Object} packet, has `type` and `data`
- * @return {String} base64 encoded message
- */
-
-exports.encodeBase64Packet = function(packet, callback) {
-  var message = 'b' + exports.packets[packet.type];
-  if (Blob && packet.data instanceof global.Blob) {
-    var fr = new FileReader();
-    fr.onload = function() {
-      var b64 = fr.result.split(',')[1];
-      callback(message + b64);
-    };
-    return fr.readAsDataURL(packet.data);
-  }
-
-  var b64data;
-  try {
-    b64data = String.fromCharCode.apply(null, new Uint8Array(packet.data));
-  } catch (e) {
-    // iPhone Safari doesn't let you apply with typed arrays
-    var typed = new Uint8Array(packet.data);
-    var basic = new Array(typed.length);
-    for (var i = 0; i < typed.length; i++) {
-      basic[i] = typed[i];
-    }
-    b64data = String.fromCharCode.apply(null, basic);
-  }
-  message += global.btoa(b64data);
-  return callback(message);
-};
-
-/**
- * Decodes a packet. Changes format to Blob if requested.
- *
- * @return {Object} with `type` and `data` (if any)
- * @api private
- */
-
-exports.decodePacket = function (data, binaryType, utf8decode) {
-  // String data
-  if (typeof data == 'string' || data === undefined) {
-    if (data.charAt(0) == 'b') {
-      return exports.decodeBase64Packet(data.substr(1), binaryType);
-    }
-
-    if (utf8decode) {
-      try {
-        data = utf8.decode(data);
-      } catch (e) {
-        return err;
-      }
-    }
-    var type = data.charAt(0);
-
-    if (Number(type) != type || !packetslist[type]) {
-      return err;
-    }
-
-    if (data.length > 1) {
-      return { type: packetslist[type], data: data.substring(1) };
-    } else {
-      return { type: packetslist[type] };
-    }
-  }
-
-  var asArray = new Uint8Array(data);
-  var type = asArray[0];
-  var rest = sliceBuffer(data, 1);
-  if (Blob && binaryType === 'blob') {
-    rest = new Blob([rest]);
-  }
-  return { type: packetslist[type], data: rest };
-};
-
-/**
- * Decodes a packet encoded in a base64 string
- *
- * @param {String} base64 encoded message
- * @return {Object} with `type` and `data` (if any)
- */
-
-exports.decodeBase64Packet = function(msg, binaryType) {
-  var type = packetslist[msg.charAt(0)];
-  if (!global.ArrayBuffer) {
-    return { type: type, data: { base64: true, data: msg.substr(1) } };
-  }
-
-  var data = base64encoder.decode(msg.substr(1));
-
-  if (binaryType === 'blob' && Blob) {
-    data = new Blob([data]);
-  }
-
-  return { type: type, data: data };
-};
-
-/**
- * Encodes multiple messages (payload).
- *
- *     <length>:data
- *
- * Example:
- *
- *     11:hello world2:hi
- *
- * If any contents are binary, they will be encoded as base64 strings. Base64
- * encoded strings are marked with a b before the length specifier
- *
- * @param {Array} packets
- * @api private
- */
-
-exports.encodePayload = function (packets, supportsBinary, callback) {
-  if (typeof supportsBinary == 'function') {
-    callback = supportsBinary;
-    supportsBinary = null;
-  }
-
-  var isBinary = hasBinary(packets);
-
-  if (supportsBinary && isBinary) {
-    if (Blob && !dontSendBlobs) {
-      return exports.encodePayloadAsBlob(packets, callback);
-    }
-
-    return exports.encodePayloadAsArrayBuffer(packets, callback);
-  }
-
-  if (!packets.length) {
-    return callback('0:');
-  }
-
-  function setLengthHeader(message) {
-    return message.length + ':' + message;
-  }
-
-  function encodeOne(packet, doneCallback) {
-    exports.encodePacket(packet, !isBinary ? false : supportsBinary, true, function(message) {
-      doneCallback(null, setLengthHeader(message));
-    });
-  }
-
-  map(packets, encodeOne, function(err, results) {
-    return callback(results.join(''));
-  });
-};
-
-/**
- * Async array map using after
- */
-
-function map(ary, each, done) {
-  var result = new Array(ary.length);
-  var next = after(ary.length, done);
-
-  var eachWithIndex = function(i, el, cb) {
-    each(el, function(error, msg) {
-      result[i] = msg;
-      cb(error, result);
-    });
-  };
-
-  for (var i = 0; i < ary.length; i++) {
-    eachWithIndex(i, ary[i], next);
-  }
-}
-
-/*
- * Decodes data when a payload is maybe expected. Possible binary contents are
- * decoded from their base64 representation
- *
- * @param {String} data, callback method
- * @api public
- */
-
-exports.decodePayload = function (data, binaryType, callback) {
-  if (typeof data != 'string') {
-    return exports.decodePayloadAsBinary(data, binaryType, callback);
-  }
-
-  if (typeof binaryType === 'function') {
-    callback = binaryType;
-    binaryType = null;
-  }
-
-  var packet;
-  if (data == '') {
-    // parser error - ignoring payload
-    return callback(err, 0, 1);
-  }
-
-  var length = ''
-    , n, msg;
-
-  for (var i = 0, l = data.length; i < l; i++) {
-    var chr = data.charAt(i);
-
-    if (':' != chr) {
-      length += chr;
-    } else {
-      if ('' == length || (length != (n = Number(length)))) {
-        // parser error - ignoring payload
-        return callback(err, 0, 1);
-      }
-
-      msg = data.substr(i + 1, n);
-
-      if (length != msg.length) {
-        // parser error - ignoring payload
-        return callback(err, 0, 1);
-      }
-
-      if (msg.length) {
-        packet = exports.decodePacket(msg, binaryType, true);
-
-        if (err.type == packet.type && err.data == packet.data) {
-          // parser error in individual packet - ignoring payload
-          return callback(err, 0, 1);
-        }
-
-        var ret = callback(packet, i + n, l);
-        if (false === ret) return;
-      }
-
-      // advance cursor
-      i += n;
-      length = '';
-    }
-  }
-
-  if (length != '') {
-    // parser error - ignoring payload
-    return callback(err, 0, 1);
-  }
-
-};
-
-/**
- * Encodes multiple messages (payload) as binary.
- *
- * <1 = binary, 0 = string><number from 0-9><number from 0-9>[...]<number
- * 255><data>
- *
- * Example:
- * 1 3 255 1 2 3, if the binary contents are interpreted as 8 bit integers
- *
- * @param {Array} packets
- * @return {ArrayBuffer} encoded payload
- * @api private
- */
-
-exports.encodePayloadAsArrayBuffer = function(packets, callback) {
-  if (!packets.length) {
-    return callback(new ArrayBuffer(0));
-  }
-
-  function encodeOne(packet, doneCallback) {
-    exports.encodePacket(packet, true, true, function(data) {
-      return doneCallback(null, data);
-    });
-  }
-
-  map(packets, encodeOne, function(err, encodedPackets) {
-    var totalLength = encodedPackets.reduce(function(acc, p) {
-      var len;
-      if (typeof p === 'string'){
-        len = p.length;
-      } else {
-        len = p.byteLength;
-      }
-      return acc + len.toString().length + len + 2; // string/binary identifier + separator = 2
-    }, 0);
-
-    var resultArray = new Uint8Array(totalLength);
-
-    var bufferIndex = 0;
-    encodedPackets.forEach(function(p) {
-      var isString = typeof p === 'string';
-      var ab = p;
-      if (isString) {
-        var view = new Uint8Array(p.length);
-        for (var i = 0; i < p.length; i++) {
-          view[i] = p.charCodeAt(i);
-        }
-        ab = view.buffer;
-      }
-
-      if (isString) { // not true binary
-        resultArray[bufferIndex++] = 0;
-      } else { // true binary
-        resultArray[bufferIndex++] = 1;
-      }
-
-      var lenStr = ab.byteLength.toString();
-      for (var i = 0; i < lenStr.length; i++) {
-        resultArray[bufferIndex++] = parseInt(lenStr[i]);
-      }
-      resultArray[bufferIndex++] = 255;
-
-      var view = new Uint8Array(ab);
-      for (var i = 0; i < view.length; i++) {
-        resultArray[bufferIndex++] = view[i];
-      }
-    });
-
-    return callback(resultArray.buffer);
-  });
-};
-
-/**
- * Encode as Blob
- */
-
-exports.encodePayloadAsBlob = function(packets, callback) {
-  function encodeOne(packet, doneCallback) {
-    exports.encodePacket(packet, true, true, function(encoded) {
-      var binaryIdentifier = new Uint8Array(1);
-      binaryIdentifier[0] = 1;
-      if (typeof encoded === 'string') {
-        var view = new Uint8Array(encoded.length);
-        for (var i = 0; i < encoded.length; i++) {
-          view[i] = encoded.charCodeAt(i);
-        }
-        encoded = view.buffer;
-        binaryIdentifier[0] = 0;
-      }
-
-      var len = (encoded instanceof ArrayBuffer)
-        ? encoded.byteLength
-        : encoded.size;
-
-      var lenStr = len.toString();
-      var lengthAry = new Uint8Array(lenStr.length + 1);
-      for (var i = 0; i < lenStr.length; i++) {
-        lengthAry[i] = parseInt(lenStr[i]);
-      }
-      lengthAry[lenStr.length] = 255;
-
-      if (Blob) {
-        var blob = new Blob([binaryIdentifier.buffer, lengthAry.buffer, encoded]);
-        doneCallback(null, blob);
-      }
-    });
-  }
-
-  map(packets, encodeOne, function(err, results) {
-    return callback(new Blob(results));
-  });
-};
-
-/*
- * Decodes data when a payload is maybe expected. Strings are decoded by
- * interpreting each byte as a key code for entries marked to start with 0. See
- * description of encodePayloadAsBinary
- *
- * @param {ArrayBuffer} data, callback method
- * @api public
- */
-
-exports.decodePayloadAsBinary = function (data, binaryType, callback) {
-  if (typeof binaryType === 'function') {
-    callback = binaryType;
-    binaryType = null;
-  }
-
-  var bufferTail = data;
-  var buffers = [];
-
-  var numberTooLong = false;
-  while (bufferTail.byteLength > 0) {
-    var tailArray = new Uint8Array(bufferTail);
-    var isString = tailArray[0] === 0;
-    var msgLength = '';
-
-    for (var i = 1; ; i++) {
-      if (tailArray[i] == 255) break;
-
-      if (msgLength.length > 310) {
-        numberTooLong = true;
-        break;
-      }
-
-      msgLength += tailArray[i];
-    }
-
-    if(numberTooLong) return callback(err, 0, 1);
-
-    bufferTail = sliceBuffer(bufferTail, 2 + msgLength.length);
-    msgLength = parseInt(msgLength);
-
-    var msg = sliceBuffer(bufferTail, 0, msgLength);
-    if (isString) {
-      try {
-        msg = String.fromCharCode.apply(null, new Uint8Array(msg));
-      } catch (e) {
-        // iPhone Safari doesn't let you apply to typed arrays
-        var typed = new Uint8Array(msg);
-        msg = '';
-        for (var i = 0; i < typed.length; i++) {
-          msg += String.fromCharCode(typed[i]);
-        }
-      }
-    }
-
-    buffers.push(msg);
-    bufferTail = sliceBuffer(bufferTail, msgLength);
-  }
-
-  var total = buffers.length;
-  buffers.forEach(function(buffer, i) {
-    callback(exports.decodePacket(buffer, binaryType, true), i, total);
-  });
-};
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{"./keys":25,"after":3,"arraybuffer.slice":4,"base64-arraybuffer":6,"blob":7,"has-binary":26,"utf8":48}],25:[function(require,module,exports){
-
-/**
- * Gets the keys for an object.
- *
- * @return {Array} keys
- * @api private
- */
-
-module.exports = Object.keys || function keys (obj){
-  var arr = [];
-  var has = Object.prototype.hasOwnProperty;
-
-  for (var i in obj) {
-    if (has.call(obj, i)) {
-      arr.push(i);
-    }
-  }
-  return arr;
-};
-
-},{}],26:[function(require,module,exports){
-(function (global){
-
-/*
- * Module requirements.
- */
-
-var isArray = require('isarray');
-
-/**
- * Module exports.
- */
-
-module.exports = hasBinary;
-
-/**
- * Checks for binary data.
- *
- * Right now only Buffer and ArrayBuffer are supported..
- *
- * @param {Object} anything
- * @api public
- */
-
-function hasBinary(data) {
-
-  function _hasBinary(obj) {
-    if (!obj) return false;
-
-    if ( (global.Buffer && global.Buffer.isBuffer(obj)) ||
-         (global.ArrayBuffer && obj instanceof ArrayBuffer) ||
-         (global.Blob && obj instanceof Blob) ||
-         (global.File && obj instanceof File)
-        ) {
-      return true;
-    }
-
-    if (isArray(obj)) {
-      for (var i = 0; i < obj.length; i++) {
-          if (_hasBinary(obj[i])) {
-              return true;
-          }
-      }
-    } else if (obj && 'object' == typeof obj) {
-      if (obj.toJSON) {
-        obj = obj.toJSON();
-      }
-
-      for (var key in obj) {
-        if (Object.prototype.hasOwnProperty.call(obj, key) && _hasBinary(obj[key])) {
-          return true;
-        }
-      }
-    }
-
-    return false;
-  }
-
-  return _hasBinary(data);
-}
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{"isarray":27}],27:[function(require,module,exports){
-module.exports = Array.isArray || function (arr) {
-  return Object.prototype.toString.call(arr) == '[object Array]';
-};
-
-},{}],28:[function(require,module,exports){
-(function (global){
-
-/*
- * Module requirements.
- */
-
-var isArray = require('isarray');
-
-/**
- * Module exports.
- */
-
-module.exports = hasBinary;
-
-/**
- * Checks for binary data.
- *
- * Right now only Buffer and ArrayBuffer are supported..
- *
- * @param {Object} anything
- * @api public
- */
-
-function hasBinary(data) {
-
-  function _hasBinary(obj) {
-    if (!obj) return false;
-
-    if ( (global.Buffer && global.Buffer.isBuffer && global.Buffer.isBuffer(obj)) ||
-         (global.ArrayBuffer && obj instanceof ArrayBuffer) ||
-         (global.Blob && obj instanceof Blob) ||
-         (global.File && obj instanceof File)
-        ) {
-      return true;
-    }
-
-    if (isArray(obj)) {
-      for (var i = 0; i < obj.length; i++) {
-          if (_hasBinary(obj[i])) {
-              return true;
-          }
-      }
-    } else if (obj && 'object' == typeof obj) {
-      // see: https://github.com/Automattic/has-binary/pull/4
-      if (obj.toJSON && 'function' == typeof obj.toJSON) {
-        obj = obj.toJSON();
-      }
-
-      for (var key in obj) {
-        if (Object.prototype.hasOwnProperty.call(obj, key) && _hasBinary(obj[key])) {
-          return true;
-        }
-      }
-    }
-
-    return false;
-  }
-
-  return _hasBinary(data);
-}
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{"isarray":29}],29:[function(require,module,exports){
-arguments[4][27][0].apply(exports,arguments)
-},{"dup":27}],30:[function(require,module,exports){
-
-/**
- * Module exports.
- *
- * Logic borrowed from Modernizr:
- *
- *   - https://github.com/Modernizr/Modernizr/blob/master/feature-detects/cors.js
- */
-
-try {
-  module.exports = typeof XMLHttpRequest !== 'undefined' &&
-    'withCredentials' in new XMLHttpRequest();
-} catch (err) {
-  // if XMLHttp support is disabled in IE then it will throw
-  // when trying to create
-  module.exports = false;
-}
-
-},{}],31:[function(require,module,exports){
-
-var indexOf = [].indexOf;
-
-module.exports = function(arr, obj){
-  if (indexOf) return arr.indexOf(obj);
-  for (var i = 0; i < arr.length; ++i) {
-    if (arr[i] === obj) return i;
-  }
-  return -1;
-};
-},{}],32:[function(require,module,exports){
-/**
- * Helpers.
- */
-
-var s = 1000;
-var m = s * 60;
-var h = m * 60;
-var d = h * 24;
-var y = d * 365.25;
-
-/**
- * Parse or format the given `val`.
- *
- * Options:
- *
- *  - `long` verbose formatting [false]
- *
- * @param {String|Number} val
- * @param {Object} options
- * @return {String|Number}
- * @api public
- */
-
-module.exports = function(val, options){
-  options = options || {};
-  if ('string' == typeof val) return parse(val);
-  return options.long
-    ? long(val)
-    : short(val);
-};
-
-/**
- * Parse the given `str` and return milliseconds.
- *
- * @param {String} str
- * @return {Number}
- * @api private
- */
-
-function parse(str) {
-  str = '' + str;
-  if (str.length > 10000) return;
-  var match = /^((?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec(str);
-  if (!match) return;
-  var n = parseFloat(match[1]);
-  var type = (match[2] || 'ms').toLowerCase();
-  switch (type) {
-    case 'years':
-    case 'year':
-    case 'yrs':
-    case 'yr':
-    case 'y':
-      return n * y;
-    case 'days':
-    case 'day':
-    case 'd':
-      return n * d;
-    case 'hours':
-    case 'hour':
-    case 'hrs':
-    case 'hr':
-    case 'h':
-      return n * h;
-    case 'minutes':
-    case 'minute':
-    case 'mins':
-    case 'min':
-    case 'm':
-      return n * m;
-    case 'seconds':
-    case 'second':
-    case 'secs':
-    case 'sec':
-    case 's':
-      return n * s;
-    case 'milliseconds':
-    case 'millisecond':
-    case 'msecs':
-    case 'msec':
-    case 'ms':
-      return n;
-  }
-}
-
-/**
- * Short format for `ms`.
- *
- * @param {Number} ms
- * @return {String}
- * @api private
- */
-
-function short(ms) {
-  if (ms >= d) return Math.round(ms / d) + 'd';
-  if (ms >= h) return Math.round(ms / h) + 'h';
-  if (ms >= m) return Math.round(ms / m) + 'm';
-  if (ms >= s) return Math.round(ms / s) + 's';
-  return ms + 'ms';
-}
-
-/**
- * Long format for `ms`.
- *
- * @param {Number} ms
- * @return {String}
- * @api private
- */
-
-function long(ms) {
-  return plural(ms, d, 'day')
-    || plural(ms, h, 'hour')
-    || plural(ms, m, 'minute')
-    || plural(ms, s, 'second')
-    || ms + ' ms';
-}
-
-/**
- * Pluralization helper.
- */
-
-function plural(ms, n, name) {
-  if (ms < n) return;
-  if (ms < n * 1.5) return Math.floor(ms / n) + ' ' + name;
-  return Math.ceil(ms / n) + ' ' + name + 's';
-}
-
-},{}],33:[function(require,module,exports){
-(function (global){
-/**
- * JSON parse.
- *
- * @see Based on jQuery#parseJSON (MIT) and JSON2
- * @api private
- */
-
-var rvalidchars = /^[\],:{}\s]*$/;
-var rvalidescape = /\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g;
-var rvalidtokens = /"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g;
-var rvalidbraces = /(?:^|:|,)(?:\s*\[)+/g;
-var rtrimLeft = /^\s+/;
-var rtrimRight = /\s+$/;
-
-module.exports = function parsejson(data) {
-  if ('string' != typeof data || !data) {
-    return null;
-  }
-
-  data = data.replace(rtrimLeft, '').replace(rtrimRight, '');
-
-  // Attempt to parse using the native JSON parser first
-  if (global.JSON && JSON.parse) {
-    return JSON.parse(data);
-  }
-
-  if (rvalidchars.test(data.replace(rvalidescape, '@')
-      .replace(rvalidtokens, ']')
-      .replace(rvalidbraces, ''))) {
-    return (new Function('return ' + data))();
-  }
-};
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{}],34:[function(require,module,exports){
-/**
- * Compiles a querystring
- * Returns string representation of the object
- *
- * @param {Object}
- * @api private
- */
-
-exports.encode = function (obj) {
-  var str = '';
-
-  for (var i in obj) {
-    if (obj.hasOwnProperty(i)) {
-      if (str.length) str += '&';
-      str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);
-    }
-  }
-
-  return str;
-};
-
-/**
- * Parses a simple querystring into an object
- *
- * @param {String} qs
- * @api private
- */
-
-exports.decode = function(qs){
-  var qry = {};
-  var pairs = qs.split('&');
-  for (var i = 0, l = pairs.length; i < l; i++) {
-    var pair = pairs[i].split('=');
-    qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);
-  }
-  return qry;
-};
-
-},{}],35:[function(require,module,exports){
-/**
- * Parses an URI
- *
- * @author Steven Levithan <stevenlevithan.com> (MIT license)
- * @api private
- */
-
-var re = /^(?:(?![^:@]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/;
-
-var parts = [
-    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'
-];
-
-module.exports = function parseuri(str) {
-    var src = str,
-        b = str.indexOf('['),
-        e = str.indexOf(']');
-
-    if (b != -1 && e != -1) {
-        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);
-    }
-
-    var m = re.exec(str || ''),
-        uri = {},
-        i = 14;
-
-    while (i--) {
-        uri[parts[i]] = m[i] || '';
-    }
-
-    if (b != -1 && e != -1) {
-        uri.source = src;
-        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');
-        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');
-        uri.ipv6uri = true;
-    }
-
-    return uri;
-};
-
-},{}],36:[function(require,module,exports){
-
-/**
- * Module dependencies.
- */
-
-var url = require('./url');
-var parser = require('socket.io-parser');
-var Manager = require('./manager');
-var debug = require('debug')('socket.io-client');
-
-/**
- * Module exports.
- */
-
-module.exports = exports = lookup;
-
-/**
- * Managers cache.
- */
-
-var cache = exports.managers = {};
-
-/**
- * Looks up an existing `Manager` for multiplexing.
- * If the user summons:
- *
- *   `io('http://localhost/a');`
- *   `io('http://localhost/b');`
- *
- * We reuse the existing instance based on same scheme/port/host,
- * and we initialize sockets for each namespace.
- *
- * @api public
- */
-
-function lookup(uri, opts) {
-  if (typeof uri == 'object') {
-    opts = uri;
-    uri = undefined;
-  }
-
-  opts = opts || {};
-
-  var parsed = url(uri);
-  var source = parsed.source;
-  var id = parsed.id;
-  var path = parsed.path;
-  var sameNamespace = cache[id] && path in cache[id].nsps;
-  var newConnection = opts.forceNew || opts['force new connection'] ||
-                      false === opts.multiplex || sameNamespace;
-
-  var io;
-
-  if (newConnection) {
-    debug('ignoring socket cache for %s', source);
-    io = Manager(source, opts);
-  } else {
-    if (!cache[id]) {
-      debug('new io instance for %s', source);
-      cache[id] = Manager(source, opts);
-    }
-    io = cache[id];
-  }
-
-  return io.socket(parsed.path);
-}
-
-/**
- * Protocol version.
- *
- * @api public
- */
-
-exports.protocol = parser.protocol;
-
-/**
- * `connect`.
- *
- * @param {String} uri
- * @api public
- */
-
-exports.connect = lookup;
-
-/**
- * Expose constructors for standalone build.
- *
- * @api public
- */
-
-exports.Manager = require('./manager');
-exports.Socket = require('./socket');
-
-},{"./manager":37,"./socket":39,"./url":40,"debug":12,"socket.io-parser":43}],37:[function(require,module,exports){
-
-/**
- * Module dependencies.
- */
-
-var eio = require('engine.io-client');
-var Socket = require('./socket');
-var Emitter = require('component-emitter');
-var parser = require('socket.io-parser');
-var on = require('./on');
-var bind = require('component-bind');
-var debug = require('debug')('socket.io-client:manager');
-var indexOf = require('indexof');
-var Backoff = require('backo2');
-
-/**
- * IE6+ hasOwnProperty
- */
-
-var has = Object.prototype.hasOwnProperty;
-
-/**
- * Module exports
- */
-
-module.exports = Manager;
-
-/**
- * `Manager` constructor.
- *
- * @param {String} engine instance or engine uri/opts
- * @param {Object} options
- * @api public
- */
-
-function Manager(uri, opts){
-  if (!(this instanceof Manager)) return new Manager(uri, opts);
-  if (uri && ('object' == typeof uri)) {
-    opts = uri;
-    uri = undefined;
-  }
-  opts = opts || {};
-
-  opts.path = opts.path || '/socket.io';
-  this.nsps = {};
-  this.subs = [];
-  this.opts = opts;
-  this.reconnection(opts.reconnection !== false);
-  this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);
-  this.reconnectionDelay(opts.reconnectionDelay || 1000);
-  this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);
-  this.randomizationFactor(opts.randomizationFactor || 0.5);
-  this.backoff = new Backoff({
-    min: this.reconnectionDelay(),
-    max: this.reconnectionDelayMax(),
-    jitter: this.randomizationFactor()
-  });
-  this.timeout(null == opts.timeout ? 20000 : opts.timeout);
-  this.readyState = 'closed';
-  this.uri = uri;
-  this.connecting = [];
-  this.lastPing = null;
-  this.encoding = false;
-  this.packetBuffer = [];
-  this.encoder = new parser.Encoder();
-  this.decoder = new parser.Decoder();
-  this.autoConnect = opts.autoConnect !== false;
-  if (this.autoConnect) this.open();
-}
-
-/**
- * Propagate given event to sockets and emit on `this`
- *
- * @api private
- */
-
-Manager.prototype.emitAll = function() {
-  this.emit.apply(this, arguments);
-  for (var nsp in this.nsps) {
-    if (has.call(this.nsps, nsp)) {
-      this.nsps[nsp].emit.apply(this.nsps[nsp], arguments);
-    }
-  }
-};
-
-/**
- * Update `socket.id` of all sockets
- *
- * @api private
- */
-
-Manager.prototype.updateSocketIds = function(){
-  for (var nsp in this.nsps) {
-    if (has.call(this.nsps, nsp)) {
-      this.nsps[nsp].id = this.engine.id;
-    }
-  }
-};
-
-/**
- * Mix in `Emitter`.
- */
-
-Emitter(Manager.prototype);
-
-/**
- * Sets the `reconnection` config.
- *
- * @param {Boolean} true/false if it should automatically reconnect
- * @return {Manager} self or value
- * @api public
- */
-
-Manager.prototype.reconnection = function(v){
-  if (!arguments.length) return this._reconnection;
-  this._reconnection = !!v;
-  return this;
-};
-
-/**
- * Sets the reconnection attempts config.
- *
- * @param {Number} max reconnection attempts before giving up
- * @return {Manager} self or value
- * @api public
- */
-
-Manager.prototype.reconnectionAttempts = function(v){
-  if (!arguments.length) return this._reconnectionAttempts;
-  this._reconnectionAttempts = v;
-  return this;
-};
-
-/**
- * Sets the delay between reconnections.
- *
- * @param {Number} delay
- * @return {Manager} self or value
- * @api public
- */
-
-Manager.prototype.reconnectionDelay = function(v){
-  if (!arguments.length) return this._reconnectionDelay;
-  this._reconnectionDelay = v;
-  this.backoff && this.backoff.setMin(v);
-  return this;
-};
-
-Manager.prototype.randomizationFactor = function(v){
-  if (!arguments.length) return this._randomizationFactor;
-  this._randomizationFactor = v;
-  this.backoff && this.backoff.setJitter(v);
-  return this;
-};
-
-/**
- * Sets the maximum delay between reconnections.
- *
- * @param {Number} delay
- * @return {Manager} self or value
- * @api public
- */
-
-Manager.prototype.reconnectionDelayMax = function(v){
-  if (!arguments.length) return this._reconnectionDelayMax;
-  this._reconnectionDelayMax = v;
-  this.backoff && this.backoff.setMax(v);
-  return this;
-};
-
-/**
- * Sets the connection timeout. `false` to disable
- *
- * @return {Manager} self or value
- * @api public
- */
-
-Manager.prototype.timeout = function(v){
-  if (!arguments.length) return this._timeout;
-  this._timeout = v;
-  return this;
-};
-
-/**
- * Starts trying to reconnect if reconnection is enabled and we have not
- * started reconnecting yet
- *
- * @api private
- */
-
-Manager.prototype.maybeReconnectOnOpen = function() {
-  // Only try to reconnect if it's the first time we're connecting
-  if (!this.reconnecting && this._reconnection && this.backoff.attempts === 0) {
-    // keeps reconnection from firing twice for the same reconnection loop
-    this.reconnect();
-  }
-};
-
-
-/**
- * Sets the current transport `socket`.
- *
- * @param {Function} optional, callback
- * @return {Manager} self
- * @api public
- */
-
-Manager.prototype.open =
-Manager.prototype.connect = function(fn){
-  debug('readyState %s', this.readyState);
-  if (~this.readyState.indexOf('open')) return this;
-
-  debug('opening %s', this.uri);
-  this.engine = eio(this.uri, this.opts);
-  var socket = this.engine;
-  var self = this;
-  this.readyState = 'opening';
-  this.skipReconnect = false;
-
-  // emit `open`
-  var openSub = on(socket, 'open', function() {
-    self.onopen();
-    fn && fn();
-  });
-
-  // emit `connect_error`
-  var errorSub = on(socket, 'error', function(data){
-    debug('connect_error');
-    self.cleanup();
-    self.readyState = 'closed';
-    self.emitAll('connect_error', data);
-    if (fn) {
-      var err = new Error('Connection error');
-      err.data = data;
-      fn(err);
-    } else {
-      // Only do this if there is no fn to handle the error
-      self.maybeReconnectOnOpen();
-    }
-  });
-
-  // emit `connect_timeout`
-  if (false !== this._timeout) {
-    var timeout = this._timeout;
-    debug('connect attempt will timeout after %d', timeout);
-
-    // set timer
-    var timer = setTimeout(function(){
-      debug('connect attempt timed out after %d', timeout);
-      openSub.destroy();
-      socket.close();
-      socket.emit('error', 'timeout');
-      self.emitAll('connect_timeout', timeout);
-    }, timeout);
-
-    this.subs.push({
-      destroy: function(){
-        clearTimeout(timer);
-      }
-    });
-  }
-
-  this.subs.push(openSub);
-  this.subs.push(errorSub);
-
-  return this;
-};
-
-/**
- * Called upon transport open.
- *
- * @api private
- */
-
-Manager.prototype.onopen = function(){
-  debug('open');
-
-  // clear old subs
-  this.cleanup();
-
-  // mark as open
-  this.readyState = 'open';
-  this.emit('open');
-
-  // add new subs
-  var socket = this.engine;
-  this.subs.push(on(socket, 'data', bind(this, 'ondata')));
-  this.subs.push(on(socket, 'ping', bind(this, 'onping')));
-  this.subs.push(on(socket, 'pong', bind(this, 'onpong')));
-  this.subs.push(on(socket, 'error', bind(this, 'onerror')));
-  this.subs.push(on(socket, 'close', bind(this, 'onclose')));
-  this.subs.push(on(this.decoder, 'decoded', bind(this, 'ondecoded')));
-};
-
-/**
- * Called upon a ping.
- *
- * @api private
- */
-
-Manager.prototype.onping = function(){
-  this.lastPing = new Date;
-  this.emitAll('ping');
-};
-
-/**
- * Called upon a packet.
- *
- * @api private
- */
-
-Manager.prototype.onpong = function(){
-  this.emitAll('pong', new Date - this.lastPing);
-};
-
-/**
- * Called with data.
- *
- * @api private
- */
-
-Manager.prototype.ondata = function(data){
-  this.decoder.add(data);
-};
-
-/**
- * Called when parser fully decodes a packet.
- *
- * @api private
- */
-
-Manager.prototype.ondecoded = function(packet) {
-  this.emit('packet', packet);
-};
-
-/**
- * Called upon socket error.
- *
- * @api private
- */
-
-Manager.prototype.onerror = function(err){
-  debug('error', err);
-  this.emitAll('error', err);
-};
-
-/**
- * Creates a new socket for the given `nsp`.
- *
- * @return {Socket}
- * @api public
- */
-
-Manager.prototype.socket = function(nsp){
-  var socket = this.nsps[nsp];
-  if (!socket) {
-    socket = new Socket(this, nsp);
-    this.nsps[nsp] = socket;
-    var self = this;
-    socket.on('connecting', onConnecting);
-    socket.on('connect', function(){
-      socket.id = self.engine.id;
-    });
-
-    if (this.autoConnect) {
-      // manually call here since connecting evnet is fired before listening
-      onConnecting();
-    }
-  }
-
-  function onConnecting() {
-    if (!~indexOf(self.connecting, socket)) {
-      self.connecting.push(socket);
-    }
-  }
-
-  return socket;
-};
-
-/**
- * Called upon a socket close.
- *
- * @param {Socket} socket
- */
-
-Manager.prototype.destroy = function(socket){
-  var index = indexOf(this.connecting, socket);
-  if (~index) this.connecting.splice(index, 1);
-  if (this.connecting.length) return;
-
-  this.close();
-};
-
-/**
- * Writes a packet.
- *
- * @param {Object} packet
- * @api private
- */
-
-Manager.prototype.packet = function(packet){
-  debug('writing packet %j', packet);
-  var self = this;
-
-  if (!self.encoding) {
-    // encode, then write to engine with result
-    self.encoding = true;
-    this.encoder.encode(packet, function(encodedPackets) {
-      for (var i = 0; i < encodedPackets.length; i++) {
-        self.engine.write(encodedPackets[i], packet.options);
-      }
-      self.encoding = false;
-      self.processPacketQueue();
-    });
-  } else { // add packet to the queue
-    self.packetBuffer.push(packet);
-  }
-};
-
-/**
- * If packet buffer is non-empty, begins encoding the
- * next packet in line.
- *
- * @api private
- */
-
-Manager.prototype.processPacketQueue = function() {
-  if (this.packetBuffer.length > 0 && !this.encoding) {
-    var pack = this.packetBuffer.shift();
-    this.packet(pack);
-  }
-};
-
-/**
- * Clean up transport subscriptions and packet buffer.
- *
- * @api private
- */
-
-Manager.prototype.cleanup = function(){
-  debug('cleanup');
-
-  var sub;
-  while (sub = this.subs.shift()) sub.destroy();
-
-  this.packetBuffer = [];
-  this.encoding = false;
-  this.lastPing = null;
-
-  this.decoder.destroy();
-};
-
-/**
- * Close the current socket.
- *
- * @api private
- */
-
-Manager.prototype.close =
-Manager.prototype.disconnect = function(){
-  debug('disconnect');
-  this.skipReconnect = true;
-  this.reconnecting = false;
-  if ('opening' == this.readyState) {
-    // `onclose` will not fire because
-    // an open event never happened
-    this.cleanup();
-  }
-  this.backoff.reset();
-  this.readyState = 'closed';
-  if (this.engine) this.engine.close();
-};
-
-/**
- * Called upon engine close.
- *
- * @api private
- */
-
-Manager.prototype.onclose = function(reason){
-  debug('onclose');
-
-  this.cleanup();
-  this.backoff.reset();
-  this.readyState = 'closed';
-  this.emit('close', reason);
-
-  if (this._reconnection && !this.skipReconnect) {
-    this.reconnect();
-  }
-};
-
-/**
- * Attempt a reconnection.
- *
- * @api private
- */
-
-Manager.prototype.reconnect = function(){
-  if (this.reconnecting || this.skipReconnect) return this;
-
-  var self = this;
-
-  if (this.backoff.attempts >= this._reconnectionAttempts) {
-    debug('reconnect failed');
-    this.backoff.reset();
-    this.emitAll('reconnect_failed');
-    this.reconnecting = false;
-  } else {
-    var delay = this.backoff.duration();
-    debug('will wait %dms before reconnect attempt', delay);
-
-    this.reconnecting = true;
-    var timer = setTimeout(function(){
-      if (self.skipReconnect) return;
-
-      debug('attempting reconnect');
-      self.emitAll('reconnect_attempt', self.backoff.attempts);
-      self.emitAll('reconnecting', self.backoff.attempts);
-
-      // check again for the case socket closed in above events
-      if (self.skipReconnect) return;
-
-      self.open(function(err){
-        if (err) {
-          debug('reconnect attempt error');
-          self.reconnecting = false;
-          self.reconnect();
-          self.emitAll('reconnect_error', err.data);
-        } else {
-          debug('reconnect success');
-          self.onreconnect();
-        }
-      });
-    }, delay);
-
-    this.subs.push({
-      destroy: function(){
-        clearTimeout(timer);
-      }
-    });
-  }
-};
-
-/**
- * Called upon successful reconnect.
- *
- * @api private
- */
-
-Manager.prototype.onreconnect = function(){
-  var attempt = this.backoff.attempts;
-  this.reconnecting = false;
-  this.backoff.reset();
-  this.updateSocketIds();
-  this.emitAll('reconnect', attempt);
-};
-
-},{"./on":38,"./socket":39,"backo2":5,"component-bind":9,"component-emitter":41,"debug":12,"engine.io-client":14,"indexof":31,"socket.io-parser":43}],38:[function(require,module,exports){
-
-/**
- * Module exports.
- */
-
-module.exports = on;
-
-/**
- * Helper for subscriptions.
- *
- * @param {Object|EventEmitter} obj with `Emitter` mixin or `EventEmitter`
- * @param {String} event name
- * @param {Function} callback
- * @api public
- */
-
-function on(obj, ev, fn) {
-  obj.on(ev, fn);
-  return {
-    destroy: function(){
-      obj.removeListener(ev, fn);
-    }
-  };
-}
-
-},{}],39:[function(require,module,exports){
-
-/**
- * Module dependencies.
- */
-
-var parser = require('socket.io-parser');
-var Emitter = require('component-emitter');
-var toArray = require('to-array');
-var on = require('./on');
-var bind = require('component-bind');
-var debug = require('debug')('socket.io-client:socket');
-var hasBin = require('has-binary');
-
-/**
- * Module exports.
- */
-
-module.exports = exports = Socket;
-
-/**
- * Internal events (blacklisted).
- * These events can't be emitted by the user.
- *
- * @api private
- */
-
-var events = {
-  connect: 1,
-  connect_error: 1,
-  connect_timeout: 1,
-  connecting: 1,
-  disconnect: 1,
-  error: 1,
-  reconnect: 1,
-  reconnect_attempt: 1,
-  reconnect_failed: 1,
-  reconnect_error: 1,
-  reconnecting: 1,
-  ping: 1,
-  pong: 1
-};
-
-/**
- * Shortcut to `Emitter#emit`.
- */
-
-var emit = Emitter.prototype.emit;
-
-/**
- * `Socket` constructor.
- *
- * @api public
- */
-
-function Socket(io, nsp){
-  this.io = io;
-  this.nsp = nsp;
-  this.json = this; // compat
-  this.ids = 0;
-  this.acks = {};
-  this.receiveBuffer = [];
-  this.sendBuffer = [];
-  this.connected = false;
-  this.disconnected = true;
-  if (this.io.autoConnect) this.open();
-}
-
-/**
- * Mix in `Emitter`.
- */
-
-Emitter(Socket.prototype);
-
-/**
- * Subscribe to open, close and packet events
- *
- * @api private
- */
-
-Socket.prototype.subEvents = function() {
-  if (this.subs) return;
-
-  var io = this.io;
-  this.subs = [
-    on(io, 'open', bind(this, 'onopen')),
-    on(io, 'packet', bind(this, 'onpacket')),
-    on(io, 'close', bind(this, 'onclose'))
-  ];
-};
-
-/**
- * "Opens" the socket.
- *
- * @api public
- */
-
-Socket.prototype.open =
-Socket.prototype.connect = function(){
-  if (this.connected) return this;
-
-  this.subEvents();
-  this.io.open(); // ensure open
-  if ('open' == this.io.readyState) this.onopen();
-  this.emit('connecting');
-  return this;
-};
-
-/**
- * Sends a `message` event.
- *
- * @return {Socket} self
- * @api public
- */
-
-Socket.prototype.send = function(){
-  var args = toArray(arguments);
-  args.unshift('message');
-  this.emit.apply(this, args);
-  return this;
-};
-
-/**
- * Override `emit`.
- * If the event is in `events`, it's emitted normally.
- *
- * @param {String} event name
- * @return {Socket} self
- * @api public
- */
-
-Socket.prototype.emit = function(ev){
-  if (events.hasOwnProperty(ev)) {
-    emit.apply(this, arguments);
-    return this;
-  }
-
-  var args = toArray(arguments);
-  var parserType = parser.EVENT; // default
-  if (hasBin(args)) { parserType = parser.BINARY_EVENT; } // binary
-  var packet = { type: parserType, data: args };
-
-  packet.options = {};
-  packet.options.compress = !this.flags || false !== this.flags.compress;
-
-  // event ack callback
-  if ('function' == typeof args[args.length - 1]) {
-    debug('emitting packet with ack id %d', this.ids);
-    this.acks[this.ids] = args.pop();
-    packet.id = this.ids++;
-  }
-
-  if (this.connected) {
-    this.packet(packet);
-  } else {
-    this.sendBuffer.push(packet);
-  }
-
-  delete this.flags;
-
-  return this;
-};
-
-/**
- * Sends a packet.
- *
- * @param {Object} packet
- * @api private
- */
-
-Socket.prototype.packet = function(packet){
-  packet.nsp = this.nsp;
-  this.io.packet(packet);
-};
-
-/**
- * Called upon engine `open`.
- *
- * @api private
- */
-
-Socket.prototype.onopen = function(){
-  debug('transport is open - connecting');
-
-  // write connect packet if necessary
-  if ('/' != this.nsp) {
-    this.packet({ type: parser.CONNECT });
-  }
-};
-
-/**
- * Called upon engine `close`.
- *
- * @param {String} reason
- * @api private
- */
-
-Socket.prototype.onclose = function(reason){
-  debug('close (%s)', reason);
-  this.connected = false;
-  this.disconnected = true;
-  delete this.id;
-  this.emit('disconnect', reason);
-};
-
-/**
- * Called with socket packet.
- *
- * @param {Object} packet
- * @api private
- */
-
-Socket.prototype.onpacket = function(packet){
-  if (packet.nsp != this.nsp) return;
-
-  switch (packet.type) {
-    case parser.CONNECT:
-      this.onconnect();
-      break;
-
-    case parser.EVENT:
-      this.onevent(packet);
-      break;
-
-    case parser.BINARY_EVENT:
-      this.onevent(packet);
-      break;
-
-    case parser.ACK:
-      this.onack(packet);
-      break;
-
-    case parser.BINARY_ACK:
-      this.onack(packet);
-      break;
-
-    case parser.DISCONNECT:
-      this.ondisconnect();
-      break;
-
-    case parser.ERROR:
-      this.emit('error', packet.data);
-      break;
-  }
-};
-
-/**
- * Called upon a server event.
- *
- * @param {Object} packet
- * @api private
- */
-
-Socket.prototype.onevent = function(packet){
-  var args = packet.data || [];
-  debug('emitting event %j', args);
-
-  if (null != packet.id) {
-    debug('attaching ack callback to event');
-    args.push(this.ack(packet.id));
-  }
-
-  if (this.connected) {
-    emit.apply(this, args);
-  } else {
-    this.receiveBuffer.push(args);
-  }
-};
-
-/**
- * Produces an ack callback to emit with an event.
- *
- * @api private
- */
-
-Socket.prototype.ack = function(id){
-  var self = this;
-  var sent = false;
-  return function(){
-    // prevent double callbacks
-    if (sent) return;
-    sent = true;
-    var args = toArray(arguments);
-    debug('sending ack %j', args);
-
-    var type = hasBin(args) ? parser.BINARY_ACK : parser.ACK;
-    self.packet({
-      type: type,
-      id: id,
-      data: args
-    });
-  };
-};
-
-/**
- * Called upon a server acknowlegement.
- *
- * @param {Object} packet
- * @api private
- */
-
-Socket.prototype.onack = function(packet){
-  var ack = this.acks[packet.id];
-  if ('function' == typeof ack) {
-    debug('calling ack %s with %j', packet.id, packet.data);
-    ack.apply(this, packet.data);
-    delete this.acks[packet.id];
-  } else {
-    debug('bad ack %s', packet.id);
-  }
-};
-
-/**
- * Called upon server connect.
- *
- * @api private
- */
-
-Socket.prototype.onconnect = function(){
-  this.connected = true;
-  this.disconnected = false;
-  this.emit('connect');
-  this.emitBuffered();
-};
-
-/**
- * Emit buffered events (received and emitted).
- *
- * @api private
- */
-
-Socket.prototype.emitBuffered = function(){
-  var i;
-  for (i = 0; i < this.receiveBuffer.length; i++) {
-    emit.apply(this, this.receiveBuffer[i]);
-  }
-  this.receiveBuffer = [];
-
-  for (i = 0; i < this.sendBuffer.length; i++) {
-    this.packet(this.sendBuffer[i]);
-  }
-  this.sendBuffer = [];
-};
-
-/**
- * Called upon server disconnect.
- *
- * @api private
- */
-
-Socket.prototype.ondisconnect = function(){
-  debug('server disconnect (%s)', this.nsp);
-  this.destroy();
-  this.onclose('io server disconnect');
-};
-
-/**
- * Called upon forced client/server side disconnections,
- * this method ensures the manager stops tracking us and
- * that reconnections don't get triggered for this.
- *
- * @api private.
- */
-
-Socket.prototype.destroy = function(){
-  if (this.subs) {
-    // clean subscriptions to avoid reconnections
-    for (var i = 0; i < this.subs.length; i++) {
-      this.subs[i].destroy();
-    }
-    this.subs = null;
-  }
-
-  this.io.destroy(this);
-};
-
-/**
- * Disconnects the socket manually.
- *
- * @return {Socket} self
- * @api public
- */
-
-Socket.prototype.close =
-Socket.prototype.disconnect = function(){
-  if (this.connected) {
-    debug('performing disconnect (%s)', this.nsp);
-    this.packet({ type: parser.DISCONNECT });
-  }
-
-  // remove socket from pool
-  this.destroy();
-
-  if (this.connected) {
-    // fire events
-    this.onclose('io client disconnect');
-  }
-  return this;
-};
-
-/**
- * Sets the compress flag.
- *
- * @param {Boolean} if `true`, compresses the sending data
- * @return {Socket} self
- * @api public
- */
-
-Socket.prototype.compress = function(compress){
-  this.flags = this.flags || {};
-  this.flags.compress = compress;
-  return this;
-};
-
-},{"./on":38,"component-bind":9,"component-emitter":41,"debug":12,"has-binary":28,"socket.io-parser":43,"to-array":47}],40:[function(require,module,exports){
-(function (global){
-
-/**
- * Module dependencies.
- */
-
-var parseuri = require('parseuri');
-var debug = require('debug')('socket.io-client:url');
-
-/**
- * Module exports.
- */
-
-module.exports = url;
-
-/**
- * URL parser.
- *
- * @param {String} url
- * @param {Object} An object meant to mimic window.location.
- *                 Defaults to window.location.
- * @api public
- */
-
-function url(uri, loc){
-  var obj = uri;
-
-  // default to window.location
-  var loc = loc || global.location;
-  if (null == uri) uri = loc.protocol + '//' + loc.host;
-
-  // relative path support
-  if ('string' == typeof uri) {
-    if ('/' == uri.charAt(0)) {
-      if ('/' == uri.charAt(1)) {
-        uri = loc.protocol + uri;
-      } else {
-        uri = loc.host + uri;
-      }
-    }
-
-    if (!/^(https?|wss?):\/\//.test(uri)) {
-      debug('protocol-less url %s', uri);
-      if ('undefined' != typeof loc) {
-        uri = loc.protocol + '//' + uri;
-      } else {
-        uri = 'https://' + uri;
-      }
-    }
-
-    // parse
-    debug('parse %s', uri);
-    obj = parseuri(uri);
-  }
-
-  // make sure we treat `localhost:80` and `localhost` equally
-  if (!obj.port) {
-    if (/^(http|ws)$/.test(obj.protocol)) {
-      obj.port = '80';
-    }
-    else if (/^(http|ws)s$/.test(obj.protocol)) {
-      obj.port = '443';
-    }
-  }
-
-  obj.path = obj.path || '/';
-
-  var ipv6 = obj.host.indexOf(':') !== -1;
-  var host = ipv6 ? '[' + obj.host + ']' : obj.host;
-
-  // define unique id
-  obj.id = obj.protocol + '://' + host + ':' + obj.port;
-  // define href
-  obj.href = obj.protocol + '://' + host + (loc && loc.port == obj.port ? '' : (':' + obj.port));
-
-  return obj;
-}
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{"debug":12,"parseuri":35}],41:[function(require,module,exports){
-
-/**
- * Expose `Emitter`.
- */
-
-module.exports = Emitter;
-
-/**
- * Initialize a new `Emitter`.
- *
- * @api public
- */
-
-function Emitter(obj) {
-  if (obj) return mixin(obj);
-};
-
-/**
- * Mixin the emitter properties.
- *
- * @param {Object} obj
- * @return {Object}
- * @api private
- */
-
-function mixin(obj) {
-  for (var key in Emitter.prototype) {
-    obj[key] = Emitter.prototype[key];
-  }
-  return obj;
-}
-
-/**
- * Listen on the given `event` with `fn`.
- *
- * @param {String} event
- * @param {Function} fn
- * @return {Emitter}
- * @api public
- */
-
-Emitter.prototype.on =
-Emitter.prototype.addEventListener = function(event, fn){
-  this._callbacks = this._callbacks || {};
-  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])
-    .push(fn);
-  return this;
-};
-
-/**
- * Adds an `event` listener that will be invoked a single
- * time then automatically removed.
- *
- * @param {String} event
- * @param {Function} fn
- * @return {Emitter}
- * @api public
- */
-
-Emitter.prototype.once = function(event, fn){
-  function on() {
-    this.off(event, on);
-    fn.apply(this, arguments);
-  }
-
-  on.fn = fn;
-  this.on(event, on);
-  return this;
-};
-
-/**
- * Remove the given callback for `event` or all
- * registered callbacks.
- *
- * @param {String} event
- * @param {Function} fn
- * @return {Emitter}
- * @api public
- */
-
-Emitter.prototype.off =
-Emitter.prototype.removeListener =
-Emitter.prototype.removeAllListeners =
-Emitter.prototype.removeEventListener = function(event, fn){
-  this._callbacks = this._callbacks || {};
-
-  // all
-  if (0 == arguments.length) {
-    this._callbacks = {};
-    return this;
-  }
-
-  // specific event
-  var callbacks = this._callbacks['$' + event];
-  if (!callbacks) return this;
-
-  // remove all handlers
-  if (1 == arguments.length) {
-    delete this._callbacks['$' + event];
-    return this;
-  }
-
-  // remove specific handler
-  var cb;
-  for (var i = 0; i < callbacks.length; i++) {
-    cb = callbacks[i];
-    if (cb === fn || cb.fn === fn) {
-      callbacks.splice(i, 1);
-      break;
-    }
-  }
-  return this;
-};
-
-/**
- * Emit `event` with the given args.
- *
- * @param {String} event
- * @param {Mixed} ...
- * @return {Emitter}
- */
-
-Emitter.prototype.emit = function(event){
-  this._callbacks = this._callbacks || {};
-  var args = [].slice.call(arguments, 1)
-    , callbacks = this._callbacks['$' + event];
-
-  if (callbacks) {
-    callbacks = callbacks.slice(0);
-    for (var i = 0, len = callbacks.length; i < len; ++i) {
-      callbacks[i].apply(this, args);
-    }
-  }
-
-  return this;
-};
-
-/**
- * Return array of callbacks for `event`.
- *
- * @param {String} event
- * @return {Array}
- * @api public
- */
-
-Emitter.prototype.listeners = function(event){
-  this._callbacks = this._callbacks || {};
-  return this._callbacks['$' + event] || [];
-};
-
-/**
- * Check if this emitter has `event` handlers.
- *
- * @param {String} event
- * @return {Boolean}
- * @api public
- */
-
-Emitter.prototype.hasListeners = function(event){
-  return !! this.listeners(event).length;
-};
-
-},{}],42:[function(require,module,exports){
-(function (global){
-/*global Blob,File*/
-
-/**
- * Module requirements
- */
-
-var isArray = require('isarray');
-var isBuf = require('./is-buffer');
-
-/**
- * Replaces every Buffer | ArrayBuffer in packet with a numbered placeholder.
- * Anything with blobs or files should be fed through removeBlobs before coming
- * here.
- *
- * @param {Object} packet - socket.io event packet
- * @return {Object} with deconstructed packet and list of buffers
- * @api public
- */
-
-exports.deconstructPacket = function(packet){
-  var buffers = [];
-  var packetData = packet.data;
-
-  function _deconstructPacket(data) {
-    if (!data) return data;
-
-    if (isBuf(data)) {
-      var placeholder = { _placeholder: true, num: buffers.length };
-      buffers.push(data);
-      return placeholder;
-    } else if (isArray(data)) {
-      var newData = new Array(data.length);
-      for (var i = 0; i < data.length; i++) {
-        newData[i] = _deconstructPacket(data[i]);
-      }
-      return newData;
-    } else if ('object' == typeof data && !(data instanceof Date)) {
-      var newData = {};
-      for (var key in data) {
-        newData[key] = _deconstructPacket(data[key]);
-      }
-      return newData;
-    }
-    return data;
-  }
-
-  var pack = packet;
-  pack.data = _deconstructPacket(packetData);
-  pack.attachments = buffers.length; // number of binary 'attachments'
-  return {packet: pack, buffers: buffers};
-};
-
-/**
- * Reconstructs a binary packet from its placeholder packet and buffers
- *
- * @param {Object} packet - event packet with placeholders
- * @param {Array} buffers - binary buffers to put in placeholder positions
- * @return {Object} reconstructed packet
- * @api public
- */
-
-exports.reconstructPacket = function(packet, buffers) {
-  var curPlaceHolder = 0;
-
-  function _reconstructPacket(data) {
-    if (data && data._placeholder) {
-      var buf = buffers[data.num]; // appropriate buffer (should be natural order anyway)
-      return buf;
-    } else if (isArray(data)) {
-      for (var i = 0; i < data.length; i++) {
-        data[i] = _reconstructPacket(data[i]);
-      }
-      return data;
-    } else if (data && 'object' == typeof data) {
-      for (var key in data) {
-        data[key] = _reconstructPacket(data[key]);
-      }
-      return data;
-    }
-    return data;
-  }
-
-  packet.data = _reconstructPacket(packet.data);
-  packet.attachments = undefined; // no longer useful
-  return packet;
-};
-
-/**
- * Asynchronously removes Blobs or Files from data via
- * FileReader's readAsArrayBuffer method. Used before encoding
- * data as msgpack. Calls callback with the blobless data.
- *
- * @param {Object} data
- * @param {Function} callback
- * @api private
- */
-
-exports.removeBlobs = function(data, callback) {
-  function _removeBlobs(obj, curKey, containingObject) {
-    if (!obj) return obj;
-
-    // convert any blob
-    if ((global.Blob && obj instanceof Blob) ||
-        (global.File && obj instanceof File)) {
-      pendingBlobs++;
-
-      // async filereader
-      var fileReader = new FileReader();
-      fileReader.onload = function() { // this.result == arraybuffer
-        if (containingObject) {
-          containingObject[curKey] = this.result;
-        }
-        else {
-          bloblessData = this.result;
-        }
-
-        // if nothing pending its callback time
-        if(! --pendingBlobs) {
-          callback(bloblessData);
-        }
-      };
-
-      fileReader.readAsArrayBuffer(obj); // blob -> arraybuffer
-    } else if (isArray(obj)) { // handle array
-      for (var i = 0; i < obj.length; i++) {
-        _removeBlobs(obj[i], i, obj);
-      }
-    } else if (obj && 'object' == typeof obj && !isBuf(obj)) { // and object
-      for (var key in obj) {
-        _removeBlobs(obj[key], key, obj);
-      }
-    }
-  }
-
-  var pendingBlobs = 0;
-  var bloblessData = data;
-  _removeBlobs(bloblessData);
-  if (!pendingBlobs) {
-    callback(bloblessData);
-  }
-};
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{"./is-buffer":44,"isarray":45}],43:[function(require,module,exports){
-
-/**
- * Module dependencies.
- */
-
-var debug = require('debug')('socket.io-parser');
-var json = require('json3');
-var isArray = require('isarray');
-var Emitter = require('component-emitter');
-var binary = require('./binary');
-var isBuf = require('./is-buffer');
-
-/**
- * Protocol version.
- *
- * @api public
- */
-
-exports.protocol = 4;
-
-/**
- * Packet types.
- *
- * @api public
- */
-
-exports.types = [
-  'CONNECT',
-  'DISCONNECT',
-  'EVENT',
-  'ACK',
-  'ERROR',
-  'BINARY_EVENT',
-  'BINARY_ACK'
-];
-
-/**
- * Packet type `connect`.
- *
- * @api public
- */
-
-exports.CONNECT = 0;
-
-/**
- * Packet type `disconnect`.
- *
- * @api public
- */
-
-exports.DISCONNECT = 1;
-
-/**
- * Packet type `event`.
- *
- * @api public
- */
-
-exports.EVENT = 2;
-
-/**
- * Packet type `ack`.
- *
- * @api public
- */
-
-exports.ACK = 3;
-
-/**
- * Packet type `error`.
- *
- * @api public
- */
-
-exports.ERROR = 4;
-
-/**
- * Packet type 'binary event'
- *
- * @api public
- */
-
-exports.BINARY_EVENT = 5;
-
-/**
- * Packet type `binary ack`. For acks with binary arguments.
- *
- * @api public
- */
-
-exports.BINARY_ACK = 6;
-
-/**
- * Encoder constructor.
- *
- * @api public
- */
-
-exports.Encoder = Encoder;
-
-/**
- * Decoder constructor.
- *
- * @api public
- */
-
-exports.Decoder = Decoder;
-
-/**
- * A socket.io Encoder instance
- *
- * @api public
- */
-
-function Encoder() {}
-
-/**
- * Encode a packet as a single string if non-binary, or as a
- * buffer sequence, depending on packet type.
- *
- * @param {Object} obj - packet object
- * @param {Function} callback - function to handle encodings (likely engine.write)
- * @return Calls callback with Array of encodings
- * @api public
- */
-
-Encoder.prototype.encode = function(obj, callback){
-  debug('encoding packet %j', obj);
-
-  if (exports.BINARY_EVENT == obj.type || exports.BINARY_ACK == obj.type) {
-    encodeAsBinary(obj, callback);
-  }
-  else {
-    var encoding = encodeAsString(obj);
-    callback([encoding]);
-  }
-};
-
-/**
- * Encode packet as string.
- *
- * @param {Object} packet
- * @return {String} encoded
- * @api private
- */
-
-function encodeAsString(obj) {
-  var str = '';
-  var nsp = false;
-
-  // first is type
-  str += obj.type;
-
-  // attachments if we have them
-  if (exports.BINARY_EVENT == obj.type || exports.BINARY_ACK == obj.type) {
-    str += obj.attachments;
-    str += '-';
-  }
-
-  // if we have a namespace other than `/`
-  // we append it followed by a comma `,`
-  if (obj.nsp && '/' != obj.nsp) {
-    nsp = true;
-    str += obj.nsp;
-  }
-
-  // immediately followed by the id
-  if (null != obj.id) {
-    if (nsp) {
-      str += ',';
-      nsp = false;
-    }
-    str += obj.id;
-  }
-
-  // json data
-  if (null != obj.data) {
-    if (nsp) str += ',';
-    str += json.stringify(obj.data);
-  }
-
-  debug('encoded %j as %s', obj, str);
-  return str;
-}
-
-/**
- * Encode packet as 'buffer sequence' by removing blobs, and
- * deconstructing packet into object with placeholders and
- * a list of buffers.
- *
- * @param {Object} packet
- * @return {Buffer} encoded
- * @api private
- */
-
-function encodeAsBinary(obj, callback) {
-
-  function writeEncoding(bloblessData) {
-    var deconstruction = binary.deconstructPacket(bloblessData);
-    var pack = encodeAsString(deconstruction.packet);
-    var buffers = deconstruction.buffers;
-
-    buffers.unshift(pack); // add packet info to beginning of data list
-    callback(buffers); // write all the buffers
-  }
-
-  binary.removeBlobs(obj, writeEncoding);
-}
-
-/**
- * A socket.io Decoder instance
- *
- * @return {Object} decoder
- * @api public
- */
-
-function Decoder() {
-  this.reconstructor = null;
-}
-
-/**
- * Mix in `Emitter` with Decoder.
- */
-
-Emitter(Decoder.prototype);
-
-/**
- * Decodes an ecoded packet string into packet JSON.
- *
- * @param {String} obj - encoded packet
- * @return {Object} packet
- * @api public
- */
-
-Decoder.prototype.add = function(obj) {
-  var packet;
-  if ('string' == typeof obj) {
-    packet = decodeString(obj);
-    if (exports.BINARY_EVENT == packet.type || exports.BINARY_ACK == packet.type) { // binary packet's json
-      this.reconstructor = new BinaryReconstructor(packet);
-
-      // no attachments, labeled binary but no binary data to follow
-      if (this.reconstructor.reconPack.attachments === 0) {
-        this.emit('decoded', packet);
-      }
-    } else { // non-binary full packet
-      this.emit('decoded', packet);
-    }
-  }
-  else if (isBuf(obj) || obj.base64) { // raw binary data
-    if (!this.reconstructor) {
-      throw new Error('got binary data when not reconstructing a packet');
-    } else {
-      packet = this.reconstructor.takeBinaryData(obj);
-      if (packet) { // received final buffer
-        this.reconstructor = null;
-        this.emit('decoded', packet);
-      }
-    }
-  }
-  else {
-    throw new Error('Unknown type: ' + obj);
-  }
-};
-
-/**
- * Decode a packet String (JSON data)
- *
- * @param {String} str
- * @return {Object} packet
- * @api private
- */
-
-function decodeString(str) {
-  var p = {};
-  var i = 0;
-
-  // look up type
-  p.type = Number(str.charAt(0));
-  if (null == exports.types[p.type]) return error();
-
-  // look up attachments if type binary
-  if (exports.BINARY_EVENT == p.type || exports.BINARY_ACK == p.type) {
-    var buf = '';
-    while (str.charAt(++i) != '-') {
-      buf += str.charAt(i);
-      if (i == str.length) break;
-    }
-    if (buf != Number(buf) || str.charAt(i) != '-') {
-      throw new Error('Illegal attachments');
-    }
-    p.attachments = Number(buf);
-  }
-
-  // look up namespace (if any)
-  if ('/' == str.charAt(i + 1)) {
-    p.nsp = '';
-    while (++i) {
-      var c = str.charAt(i);
-      if (',' == c) break;
-      p.nsp += c;
-      if (i == str.length) break;
-    }
-  } else {
-    p.nsp = '/';
-  }
-
-  // look up id
-  var next = str.charAt(i + 1);
-  if ('' !== next && Number(next) == next) {
-    p.id = '';
-    while (++i) {
-      var c = str.charAt(i);
-      if (null == c || Number(c) != c) {
-        --i;
-        break;
-      }
-      p.id += str.charAt(i);
-      if (i == str.length) break;
-    }
-    p.id = Number(p.id);
-  }
-
-  // look up json data
-  if (str.charAt(++i)) {
-    try {
-      p.data = json.parse(str.substr(i));
-    } catch(e){
-      return error();
-    }
-  }
-
-  debug('decoded %s as %j', str, p);
-  return p;
-}
-
-/**
- * Deallocates a parser's resources
- *
- * @api public
- */
-
-Decoder.prototype.destroy = function() {
-  if (this.reconstructor) {
-    this.reconstructor.finishedReconstruction();
-  }
-};
-
-/**
- * A manager of a binary event's 'buffer sequence'. Should
- * be constructed whenever a packet of type BINARY_EVENT is
- * decoded.
- *
- * @param {Object} packet
- * @return {BinaryReconstructor} initialized reconstructor
- * @api private
- */
-
-function BinaryReconstructor(packet) {
-  this.reconPack = packet;
-  this.buffers = [];
-}
-
-/**
- * Method to be called when binary data received from connection
- * after a BINARY_EVENT packet.
- *
- * @param {Buffer | ArrayBuffer} binData - the raw binary data received
- * @return {null | Object} returns null if more binary data is expected or
- *   a reconstructed packet object if all buffers have been received.
- * @api private
- */
-
-BinaryReconstructor.prototype.takeBinaryData = function(binData) {
-  this.buffers.push(binData);
-  if (this.buffers.length == this.reconPack.attachments) { // done with buffer list
-    var packet = binary.reconstructPacket(this.reconPack, this.buffers);
-    this.finishedReconstruction();
-    return packet;
-  }
-  return null;
-};
-
-/**
- * Cleans up binary packet reconstruction variables.
- *
- * @api private
- */
-
-BinaryReconstructor.prototype.finishedReconstruction = function() {
-  this.reconPack = null;
-  this.buffers = [];
-};
-
-function error(data){
-  return {
-    type: exports.ERROR,
-    data: 'parser error'
-  };
-}
-
-},{"./binary":42,"./is-buffer":44,"component-emitter":10,"debug":12,"isarray":45,"json3":46}],44:[function(require,module,exports){
-(function (global){
-
-module.exports = isBuf;
-
-/**
- * Returns true if obj is a buffer or an arraybuffer.
- *
- * @api private
- */
-
-function isBuf(obj) {
-  return (global.Buffer && global.Buffer.isBuffer(obj)) ||
-         (global.ArrayBuffer && obj instanceof ArrayBuffer);
-}
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{}],45:[function(require,module,exports){
-arguments[4][27][0].apply(exports,arguments)
-},{"dup":27}],46:[function(require,module,exports){
-(function (global){
-/*! JSON v3.3.2 | http://bestiejs.github.io/json3 | Copyright 2012-2014, Kit Cambridge | http://kit.mit-license.org */
-;(function () {
-  // Detect the `define` function exposed by asynchronous module loaders. The
-  // strict `define` check is necessary for compatibility with `r.js`.
-  var isLoader = typeof define === "function" && define.amd;
-
-  // A set of types used to distinguish objects from primitives.
-  var objectTypes = {
-    "function": true,
-    "object": true
-  };
-
-  // Detect the `exports` object exposed by CommonJS implementations.
-  var freeExports = objectTypes[typeof exports] && exports && !exports.nodeType && exports;
-
-  // Use the `global` object exposed by Node (including Browserify via
-  // `insert-module-globals`), Narwhal, and Ringo as the default context,
-  // and the `window` object in browsers. Rhino exports a `global` function
-  // instead.
-  var root = objectTypes[typeof window] && window || this,
-      freeGlobal = freeExports && objectTypes[typeof module] && module && !module.nodeType && typeof global == "object" && global;
-
-  if (freeGlobal && (freeGlobal["global"] === freeGlobal || freeGlobal["window"] === freeGlobal || freeGlobal["self"] === freeGlobal)) {
-    root = freeGlobal;
-  }
-
-  // Public: Initializes JSON 3 using the given `context` object, attaching the
-  // `stringify` and `parse` functions to the specified `exports` object.
-  function runInContext(context, exports) {
-    context || (context = root["Object"]());
-    exports || (exports = root["Object"]());
-
-    // Native constructor aliases.
-    var Number = context["Number"] || root["Number"],
-        String = context["String"] || root["String"],
-        Object = context["Object"] || root["Object"],
-        Date = context["Date"] || root["Date"],
-        SyntaxError = context["SyntaxError"] || root["SyntaxError"],
-        TypeError = context["TypeError"] || root["TypeError"],
-        Math = context["Math"] || root["Math"],
-        nativeJSON = context["JSON"] || root["JSON"];
-
-    // Delegate to the native `stringify` and `parse` implementations.
-    if (typeof nativeJSON == "object" && nativeJSON) {
-      exports.stringify = nativeJSON.stringify;
-      exports.parse = nativeJSON.parse;
-    }
-
-    // Convenience aliases.
-    var objectProto = Object.prototype,
-        getClass = objectProto.toString,
-        isProperty, forEach, undef;
-
-    // Test the `Date#getUTC*` methods. Based on work by @Yaffle.
-    var isExtended = new Date(-3509827334573292);
-    try {
-      // The `getUTCFullYear`, `Month`, and `Date` methods return nonsensical
-      // results for certain dates in Opera >= 10.53.
-      isExtended = isExtended.getUTCFullYear() == -109252 && isExtended.getUTCMonth() === 0 && isExtended.getUTCDate() === 1 &&
-        // Safari < 2.0.2 stores the internal millisecond time value correctly,
-        // but clips the values returned by the date methods to the range of
-        // signed 32-bit integers ([-2 ** 31, 2 ** 31 - 1]).
-        isExtended.getUTCHours() == 10 && isExtended.getUTCMinutes() == 37 && isExtended.getUTCSeconds() == 6 && isExtended.getUTCMilliseconds() == 708;
-    } catch (exception) {}
-
-    // Internal: Determines whether the native `JSON.stringify` and `parse`
-    // implementations are spec-compliant. Based on work by Ken Snyder.
-    function has(name) {
-      if (has[name] !== undef) {
-        // Return cached feature test result.
-        return has[name];
-      }
-      var isSupported;
-      if (name == "bug-string-char-index") {
-        // IE <= 7 doesn't support accessing string characters using square
-        // bracket notation. IE 8 only supports this for primitives.
-        isSupported = "a"[0] != "a";
-      } else if (name == "json") {
-        // Indicates whether both `JSON.stringify` and `JSON.parse` are
-        // supported.
-        isSupported = has("json-stringify") && has("json-parse");
-      } else {
-        var value, serialized = '{"a":[1,true,false,null,"\\u0000\\b\\n\\f\\r\\t"]}';
-        // Test `JSON.stringify`.
-        if (name == "json-stringify") {
-          var stringify = exports.stringify, stringifySupported = typeof stringify == "function" && isExtended;
-          if (stringifySupported) {
-            // A test function object with a custom `toJSON` method.
-            (value = function () {
-              return 1;
-            }).toJSON = value;
-            try {
-              stringifySupported =
-                // Firefox 3.1b1 and b2 serialize string, number, and boolean
-                // primitives as object literals.
-                stringify(0) === "0" &&
-                // FF 3.1b1, b2, and JSON 2 serialize wrapped primitives as object
-                // literals.
-                stringify(new Number()) === "0" &&
-                stringify(new String()) == '""' &&
-                // FF 3.1b1, 2 throw an error if the value is `null`, `undefined`, or
-                // does not define a canonical JSON representation (this applies to
-                // objects with `toJSON` properties as well, *unless* they are nested
-                // within an object or array).
-                stringify(getClass) === undef &&
-                // IE 8 serializes `undefined` as `"undefined"`. Safari <= 5.1.7 and
-                // FF 3.1b3 pass this test.
-                stringify(undef) === undef &&
-                // Safari <= 5.1.7 and FF 3.1b3 throw `Error`s and `TypeError`s,
-                // respectively, if the value is omitted entirely.
-                stringify() === undef &&
-                // FF 3.1b1, 2 throw an error if the given value is not a number,
-                // string, array, object, Boolean, or `null` literal. This applies to
-                // objects with custom `toJSON` methods as well, unless they are nested
-                // inside object or array literals. YUI 3.0.0b1 ignores custom `toJSON`
-                // methods entirely.
-                stringify(value) === "1" &&
-                stringify([value]) == "[1]" &&
-                // Prototype <= 1.6.1 serializes `[undefined]` as `"[]"` instead of
-                // `"[null]"`.
-                stringify([undef]) == "[null]" &&
-                // YUI 3.0.0b1 fails to serialize `null` literals.
-                stringify(null) == "null" &&
-                // FF 3.1b1, 2 halts serialization if an array contains a function:
-                // `[1, true, getClass, 1]` serializes as "[1,true,],". FF 3.1b3
-                // elides non-JSON values from objects and arrays, unless they
-                // define custom `toJSON` methods.
-                stringify([undef, getClass, null]) == "[null,null,null]" &&
-                // Simple serialization test. FF 3.1b1 uses Unicode escape sequences
-                // where character escape codes are expected (e.g., `\b` => `\u0008`).
-                stringify({ "a": [value, true, false, null, "\x00\b\n\f\r\t"] }) == serialized &&
-                // FF 3.1b1 and b2 ignore the `filter` and `width` arguments.
-                stringify(null, value) === "1" &&
-                stringify([1, 2], null, 1) == "[\n 1,\n 2\n]" &&
-                // JSON 2, Prototype <= 1.7, and older WebKit builds incorrectly
-                // serialize extended years.
-                stringify(new Date(-8.64e15)) == '"-271821-04-20T00:00:00.000Z"' &&
-                // The milliseconds are optional in ES 5, but required in 5.1.
-                stringify(new Date(8.64e15)) == '"+275760-09-13T00:00:00.000Z"' &&
-                // Firefox <= 11.0 incorrectly serializes years prior to 0 as negative
-                // four-digit years instead of six-digit years. Credits: @Yaffle.
-                stringify(new Date(-621987552e5)) == '"-000001-01-01T00:00:00.000Z"' &&
-                // Safari <= 5.1.5 and Opera >= 10.53 incorrectly serialize millisecond
-                // values less than 1000. Credits: @Yaffle.
-                stringify(new Date(-1)) == '"1969-12-31T23:59:59.999Z"';
-            } catch (exception) {
-              stringifySupported = false;
-            }
-          }
-          isSupported = stringifySupported;
-        }
-        // Test `JSON.parse`.
-        if (name == "json-parse") {
-          var parse = exports.parse;
-          if (typeof parse == "function") {
-            try {
-              // FF 3.1b1, b2 will throw an exception if a bare literal is provided.
-              // Conforming implementations should also coerce the initial argument to
-              // a string prior to parsing.
-              if (parse("0") === 0 && !parse(false)) {
-                // Simple parsing test.
-                value = parse(serialized);
-                var parseSupported = value["a"].length == 5 && value["a"][0] === 1;
-                if (parseSupported) {
-                  try {
-                    // Safari <= 5.1.2 and FF 3.1b1 allow unescaped tabs in strings.
-                    parseSupported = !parse('"\t"');
-                  } catch (exception) {}
-                  if (parseSupported) {
-                    try {
-                      // FF 4.0 and 4.0.1 allow leading `+` signs and leading
-                      // decimal points. FF 4.0, 4.0.1, and IE 9-10 also allow
-                      // certain octal literals.
-                      parseSupported = parse("01") !== 1;
-                    } catch (exception) {}
-                  }
-                  if (parseSupported) {
-                    try {
-                      // FF 4.0, 4.0.1, and Rhino 1.7R3-R4 allow trailing decimal
-                      // points. These environments, along with FF 3.1b1 and 2,
-                      // also allow trailing commas in JSON objects and arrays.
-                      parseSupported = parse("1.") !== 1;
-                    } catch (exception) {}
-                  }
-                }
-              }
-            } catch (exception) {
-              parseSupported = false;
-            }
-          }
-          isSupported = parseSupported;
-        }
-      }
-      return has[name] = !!isSupported;
-    }
-
-    if (!has("json")) {
-      // Common `[[Class]]` name aliases.
-      var functionClass = "[object Function]",
-          dateClass = "[object Date]",
-          numberClass = "[object Number]",
-          stringClass = "[object String]",
-          arrayClass = "[object Array]",
-          booleanClass = "[object Boolean]";
-
-      // Detect incomplete support for accessing string characters by index.
-      var charIndexBuggy = has("bug-string-char-index");
-
-      // Define additional utility methods if the `Date` methods are buggy.
-      if (!isExtended) {
-        var floor = Math.floor;
-        // A mapping between the months of the year and the number of days between
-        // January 1st and the first of the respective month.
-        var Months = [0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334];
-        // Internal: Calculates the number of days between the Unix epoch and the
-        // first day of the given month.
-        var getDay = function (year, month) {
-          return Months[month] + 365 * (year - 1970) + floor((year - 1969 + (month = +(month > 1))) / 4) - floor((year - 1901 + month) / 100) + floor((year - 1601 + month) / 400);
-        };
-      }
-
-      // Internal: Determines if a property is a direct property of the given
-      // object. Delegates to the native `Object#hasOwnProperty` method.
-      if (!(isProperty = objectProto.hasOwnProperty)) {
-        isProperty = function (property) {
-          var members = {}, constructor;
-          if ((members.__proto__ = null, members.__proto__ = {
-            // The *proto* property cannot be set multiple times in recent
-            // versions of Firefox and SeaMonkey.
-            "toString": 1
-          }, members).toString != getClass) {
-            // Safari <= 2.0.3 doesn't implement `Object#hasOwnProperty`, but
-            // supports the mutable *proto* property.
-            isProperty = function (property) {
-              // Capture and break the object's prototype chain (see section 8.6.2
-              // of the ES 5.1 spec). The parenthesized expression prevents an
-              // unsafe transformation by the Closure Compiler.
-              var original = this.__proto__, result = property in (this.__proto__ = null, this);
-              // Restore the original prototype chain.
-              this.__proto__ = original;
-              return result;
-            };
-          } else {
-            // Capture a reference to the top-level `Object` constructor.
-            constructor = members.constructor;
-            // Use the `constructor` property to simulate `Object#hasOwnProperty` in
-            // other environments.
-            isProperty = function (property) {
-              var parent = (this.constructor || constructor).prototype;
-              return property in this && !(property in parent && this[property] === parent[property]);
-            };
-          }
-          members = null;
-          return isProperty.call(this, property);
-        };
-      }
-
-      // Internal: Normalizes the `for...in` iteration algorithm across
-      // environments. Each enumerated key is yielded to a `callback` function.
-      forEach = function (object, callback) {
-        var size = 0, Properties, members, property;
-
-        // Tests for bugs in the current environment's `for...in` algorithm. The
-        // `valueOf` property inherits the non-enumerable flag from
-        // `Object.prototype` in older versions of IE, Netscape, and Mozilla.
-        (Properties = function () {
-          this.valueOf = 0;
-        }).prototype.valueOf = 0;
-
-        // Iterate over a new instance of the `Properties` class.
-        members = new Properties();
-        for (property in members) {
-          // Ignore all properties inherited from `Object.prototype`.
-          if (isProperty.call(members, property)) {
-            size++;
-          }
-        }
-        Properties = members = null;
-
-        // Normalize the iteration algorithm.
-        if (!size) {
-          // A list of non-enumerable properties inherited from `Object.prototype`.
-          members = ["valueOf", "toString", "toLocaleString", "propertyIsEnumerable", "isPrototypeOf", "hasOwnProperty", "constructor"];
-          // IE <= 8, Mozilla 1.0, and Netscape 6.2 ignore shadowed non-enumerable
-          // properties.
-          forEach = function (object, callback) {
-            var isFunction = getClass.call(object) == functionClass, property, length;
-            var hasProperty = !isFunction && typeof object.constructor != "function" && objectTypes[typeof object.hasOwnProperty] && object.hasOwnProperty || isProperty;
-            for (property in object) {
-              // Gecko <= 1.0 enumerates the `prototype` property of functions under
-              // certain conditions; IE does not.
-              if (!(isFunction && property == "prototype") && hasProperty.call(object, property)) {
-                callback(property);
-              }
-            }
-            // Manually invoke the callback for each non-enumerable property.
-            for (length = members.length; property = members[--length]; hasProperty.call(object, property) && callback(property));
-          };
-        } else if (size == 2) {
-          // Safari <= 2.0.4 enumerates shadowed properties twice.
-          forEach = function (object, callback) {
-            // Create a set of iterated properties.
-            var members = {}, isFunction = getClass.call(object) == functionClass, property;
-            for (property in object) {
-              // Store each property name to prevent double enumeration. The
-              // `prototype` property of functions is not enumerated due to cross-
-              // environment inconsistencies.
-              if (!(isFunction && property == "prototype") && !isProperty.call(members, property) && (members[property] = 1) && isProperty.call(object, property)) {
-                callback(property);
-              }
-            }
-          };
-        } else {
-          // No bugs detected; use the standard `for...in` algorithm.
-          forEach = function (object, callback) {
-            var isFunction = getClass.call(object) == functionClass, property, isConstructor;
-            for (property in object) {
-              if (!(isFunction && property == "prototype") && isProperty.call(object, property) && !(isConstructor = property === "constructor")) {
-                callback(property);
-              }
-            }
-            // Manually invoke the callback for the `constructor` property due to
-            // cross-environment inconsistencies.
-            if (isConstructor || isProperty.call(object, (property = "constructor"))) {
-              callback(property);
-            }
-          };
-        }
-        return forEach(object, callback);
-      };
-
-      // Public: Serializes a JavaScript `value` as a JSON string. The optional
-      // `filter` argument may specify either a function that alters how object and
-      // array members are serialized, or an array of strings and numbers that
-      // indicates which properties should be serialized. The optional `width`
-      // argument may be either a string or number that specifies the indentation
-      // level of the output.
-      if (!has("json-stringify")) {
-        // Internal: A map of control characters and their escaped equivalents.
-        var Escapes = {
-          92: "\\\\",
-          34: '\\"',
-          8: "\\b",
-          12: "\\f",
-          10: "\\n",
-          13: "\\r",
-          9: "\\t"
-        };
-
-        // Internal: Converts `value` into a zero-padded string such that its
-        // length is at least equal to `width`. The `width` must be <= 6.
-        var leadingZeroes = "000000";
-        var toPaddedString = function (width, value) {
-          // The `|| 0` expression is necessary to work around a bug in
-          // Opera <= 7.54u2 where `0 == -0`, but `String(-0) !== "0"`.
-          return (leadingZeroes + (value || 0)).slice(-width);
-        };
-
-        // Internal: Double-quotes a string `value`, replacing all ASCII control
-        // characters (characters with code unit values between 0 and 31) with
-        // their escaped equivalents. This is an implementation of the
-        // `Quote(value)` operation defined in ES 5.1 section 15.12.3.
-        var unicodePrefix = "\\u00";
-        var quote = function (value) {
-          var result = '"', index = 0, length = value.length, useCharIndex = !charIndexBuggy || length > 10;
-          var symbols = useCharIndex && (charIndexBuggy ? value.split("") : value);
-          for (; index < length; index++) {
-            var charCode = value.charCodeAt(index);
-            // If the character is a control character, append its Unicode or
-            // shorthand escape sequence; otherwise, append the character as-is.
-            switch (charCode) {
-              case 8: case 9: case 10: case 12: case 13: case 34: case 92:
-                result += Escapes[charCode];
-                break;
-              default:
-                if (charCode < 32) {
-                  result += unicodePrefix + toPaddedString(2, charCode.toString(16));
-                  break;
-                }
-                result += useCharIndex ? symbols[index] : value.charAt(index);
-            }
-          }
-          return result + '"';
-        };
-
-        // Internal: Recursively serializes an object. Implements the
-        // `Str(key, holder)`, `JO(value)`, and `JA(value)` operations.
-        var serialize = function (property, object, callback, properties, whitespace, indentation, stack) {
-          var value, className, year, month, date, time, hours, minutes, seconds, milliseconds, results, element, index, length, prefix, result;
-          try {
-            // Necessary for host object support.
-            value = object[property];
-          } catch (exception) {}
-          if (typeof value == "object" && value) {
-            className = getClass.call(value);
-            if (className == dateClass && !isProperty.call(value, "toJSON")) {
-              if (value > -1 / 0 && value < 1 / 0) {
-                // Dates are serialized according to the `Date#toJSON` method
-                // specified in ES 5.1 section 15.9.5.44. See section 15.9.1.15
-                // for the ISO 8601 date time string format.
-                if (getDay) {
-                  // Manually compute the year, month, date, hours, minutes,
-                  // seconds, and milliseconds if the `getUTC*` methods are
-                  // buggy. Adapted from @Yaffle's `date-shim` project.
-                  date = floor(value / 864e5);
-                  for (year = floor(date / 365.2425) + 1970 - 1; getDay(year + 1, 0) <= date; year++);
-                  for (month = floor((date - getDay(year, 0)) / 30.42); getDay(year, month + 1) <= date; month++);
-                  date = 1 + date - getDay(year, month);
-                  // The `time` value specifies the time within the day (see ES
-                  // 5.1 section 15.9.1.2). The formula `(A % B + B) % B` is used
-                  // to compute `A modulo B`, as the `%` operator does not
-                  // correspond to the `modulo` operation for negative numbers.
-                  time = (value % 864e5 + 864e5) % 864e5;
-                  // The hours, minutes, seconds, and milliseconds are obtained by
-                  // decomposing the time within the day. See section 15.9.1.10.
-                  hours = floor(time / 36e5) % 24;
-                  minutes = floor(time / 6e4) % 60;
-                  seconds = floor(time / 1e3) % 60;
-                  milliseconds = time % 1e3;
-                } else {
-                  year = value.getUTCFullYear();
-                  month = value.getUTCMonth();
-                  date = value.getUTCDate();
-                  hours = value.getUTCHours();
-                  minutes = value.getUTCMinutes();
-                  seconds = value.getUTCSeconds();
-                  milliseconds = value.getUTCMilliseconds();
-                }
-                // Serialize extended years correctly.
-                value = (year <= 0 || year >= 1e4 ? (year < 0 ? "-" : "+") + toPaddedString(6, year < 0 ? -year : year) : toPaddedString(4, year)) +
-                  "-" + toPaddedString(2, month + 1) + "-" + toPaddedString(2, date) +
-                  // Months, dates, hours, minutes, and seconds should have two
-                  // digits; milliseconds should have three.
-                  "T" + toPaddedString(2, hours) + ":" + toPaddedString(2, minutes) + ":" + toPaddedString(2, seconds) +
-                  // Milliseconds are optional in ES 5.0, but required in 5.1.
-                  "." + toPaddedString(3, milliseconds) + "Z";
-              } else {
-                value = null;
-              }
-            } else if (typeof value.toJSON == "function" && ((className != numberClass && className != stringClass && className != arrayClass) || isProperty.call(value, "toJSON"))) {
-              // Prototype <= 1.6.1 adds non-standard `toJSON` methods to the
-              // `Number`, `String`, `Date`, and `Array` prototypes. JSON 3
-              // ignores all `toJSON` methods on these objects unless they are
-              // defined directly on an instance.
-              value = value.toJSON(property);
-            }
-          }
-          if (callback) {
-            // If a replacement function was provided, call it to obtain the value
-            // for serialization.
-            value = callback.call(object, property, value);
-          }
-          if (value === null) {
-            return "null";
-          }
-          className = getClass.call(value);
-          if (className == booleanClass) {
-            // Booleans are represented literally.
-            return "" + value;
-          } else if (className == numberClass) {
-            // JSON numbers must be finite. `Infinity` and `NaN` are serialized as
-            // `"null"`.
-            return value > -1 / 0 && value < 1 / 0 ? "" + value : "null";
-          } else if (className == stringClass) {
-            // Strings are double-quoted and escaped.
-            return quote("" + value);
-          }
-          // Recursively serialize objects and arrays.
-          if (typeof value == "object") {
-            // Check for cyclic structures. This is a linear search; performance
-            // is inversely proportional to the number of unique nested objects.
-            for (length = stack.length; length--;) {
-              if (stack[length] === value) {
-                // Cyclic structures cannot be serialized by `JSON.stringify`.
-                throw TypeError();
-              }
-            }
-            // Add the object to the stack of traversed objects.
-            stack.push(value);
-            results = [];
-            // Save the current indentation level and indent one additional level.
-            prefix = indentation;
-            indentation += whitespace;
-            if (className == arrayClass) {
-              // Recursively serialize array elements.
-              for (index = 0, length = value.length; index < length; index++) {
-                element = serialize(index, value, callback, properties, whitespace, indentation, stack);
-                results.push(element === undef ? "null" : element);
-              }
-              result = results.length ? (whitespace ? "[\n" + indentation + results.join(",\n" + indentation) + "\n" + prefix + "]" : ("[" + results.join(",") + "]")) : "[]";
-            } else {
-              // Recursively serialize object members. Members are selected from
-              // either a user-specified list of property names, or the object
-              // itself.
-              forEach(properties || value, function (property) {
-                var element = serialize(property, value, callback, properties, whitespace, indentation, stack);
-                if (element !== undef) {
-                  // According to ES 5.1 section 15.12.3: "If `gap` {whitespace}
-                  // is not the empty string, let `member` {quote(property) + ":"}
-                  // be the concatenation of `member` and the `space` character."
-                  // The "`space` character" refers to the literal space
-                  // character, not the `space` {width} argument provided to
-                  // `JSON.stringify`.
-                  results.push(quote(property) + ":" + (whitespace ? " " : "") + element);
-                }
-              });
-              result = results.length ? (whitespace ? "{\n" + indentation + results.join(",\n" + indentation) + "\n" + prefix + "}" : ("{" + results.join(",") + "}")) : "{}";
-            }
-            // Remove the object from the traversed object stack.
-            stack.pop();
-            return result;
-          }
-        };
-
-        // Public: `JSON.stringify`. See ES 5.1 section 15.12.3.
-        exports.stringify = function (source, filter, width) {
-          var whitespace, callback, properties, className;
-          if (objectTypes[typeof filter] && filter) {
-            if ((className = getClass.call(filter)) == functionClass) {
-              callback = filter;
-            } else if (className == arrayClass) {
-              // Convert the property names array into a makeshift set.
-              properties = {};
-              for (var index = 0, length = filter.length, value; index < length; value = filter[index++], ((className = getClass.call(value)), className == stringClass || className == numberClass) && (properties[value] = 1));
-            }
-          }
-          if (width) {
-            if ((className = getClass.call(width)) == numberClass) {
-              // Convert the `width` to an integer and create a string containing
-              // `width` number of space characters.
-              if ((width -= width % 1) > 0) {
-                for (whitespace = "", width > 10 && (width = 10); whitespace.length < width; whitespace += " ");
-              }
-            } else if (className == stringClass) {
-              whitespace = width.length <= 10 ? width : width.slice(0, 10);
-            }
-          }
-          // Opera <= 7.54u2 discards the values associated with empty string keys
-          // (`""`) only if they are used directly within an object member list
-          // (e.g., `!("" in { "": 1})`).
-          return serialize("", (value = {}, value[""] = source, value), callback, properties, whitespace, "", []);
-        };
-      }
-
-      // Public: Parses a JSON source string.
-      if (!has("json-parse")) {
-        var fromCharCode = String.fromCharCode;
-
-        // Internal: A map of escaped control characters and their unescaped
-        // equivalents.
-        var Unescapes = {
-          92: "\\",
-          34: '"',
-          47: "/",
-          98: "\b",
-          116: "\t",
-          110: "\n",
-          102: "\f",
-          114: "\r"
-        };
-
-        // Internal: Stores the parser state.
-        var Index, Source;
-
-        // Internal: Resets the parser state and throws a `SyntaxError`.
-        var abort = function () {
-          Index = Source = null;
-          throw SyntaxError();
-        };
-
-        // Internal: Returns the next token, or `"$"` if the parser has reached
-        // the end of the source string. A token may be a string, number, `null`
-        // literal, or Boolean literal.
-        var lex = function () {
-          var source = Source, length = source.length, value, begin, position, isSigned, charCode;
-          while (Index < length) {
-            charCode = source.charCodeAt(Index);
-            switch (charCode) {
-              case 9: case 10: case 13: case 32:
-                // Skip whitespace tokens, including tabs, carriage returns, line
-                // feeds, and space characters.
-                Index++;
-                break;
-              case 123: case 125: case 91: case 93: case 58: case 44:
-                // Parse a punctuator token (`{`, `}`, `[`, `]`, `:`, or `,`) at
-                // the current position.
-                value = charIndexBuggy ? source.charAt(Index) : source[Index];
-                Index++;
-                return value;
-              case 34:
-                // `"` delimits a JSON string; advance to the next character and
-                // begin parsing the string. String tokens are prefixed with the
-                // sentinel `@` character to distinguish them from punctuators and
-                // end-of-string tokens.
-                for (value = "@", Index++; Index < length;) {
-                  charCode = source.charCodeAt(Index);
-                  if (charCode < 32) {
-                    // Unescaped ASCII control characters (those with a code unit
-                    // less than the space character) are not permitted.
-                    abort();
-                  } else if (charCode == 92) {
-                    // A reverse solidus (`\`) marks the beginning of an escaped
-                    // control character (including `"`, `\`, and `/`) or Unicode
-                    // escape sequence.
-                    charCode = source.charCodeAt(++Index);
-                    switch (charCode) {
-                      case 92: case 34: case 47: case 98: case 116: case 110: case 102: case 114:
-                        // Revive escaped control characters.
-                        value += Unescapes[charCode];
-                        Index++;
-                        break;
-                      case 117:
-                        // `\u` marks the beginning of a Unicode escape sequence.
-                        // Advance to the first character and validate the
-                        // four-digit code point.
-                        begin = ++Index;
-                        for (position = Index + 4; Index < position; Index++) {
-                          charCode = source.charCodeAt(Index);
-                          // A valid sequence comprises four hexdigits (case-
-                          // insensitive) that form a single hexadecimal value.
-                          if (!(charCode >= 48 && charCode <= 57 || charCode >= 97 && charCode <= 102 || charCode >= 65 && charCode <= 70)) {
-                            // Invalid Unicode escape sequence.
-                            abort();
-                          }
-                        }
-                        // Revive the escaped character.
-                        value += fromCharCode("0x" + source.slice(begin, Index));
-                        break;
-                      default:
-                        // Invalid escape sequence.
-                        abort();
-                    }
-                  } else {
-                    if (charCode == 34) {
-                      // An unescaped double-quote character marks the end of the
-                      // string.
-                      break;
-                    }
-                    charCode = source.charCodeAt(Index);
-                    begin = Index;
-                    // Optimize for the common case where a string is valid.
-                    while (charCode >= 32 && charCode != 92 && charCode != 34) {
-                      charCode = source.charCodeAt(++Index);
-                    }
-                    // Append the string as-is.
-                    value += source.slice(begin, Index);
-                  }
-                }
-                if (source.charCodeAt(Index) == 34) {
-                  // Advance to the next character and return the revived string.
-                  Index++;
-                  return value;
-                }
-                // Unterminated string.
-                abort();
-              default:
-                // Parse numbers and literals.
-                begin = Index;
-                // Advance past the negative sign, if one is specified.
-                if (charCode == 45) {
-                  isSigned = true;
-                  charCode = source.charCodeAt(++Index);
-                }
-                // Parse an integer or floating-point value.
-                if (charCode >= 48 && charCode <= 57) {
-                  // Leading zeroes are interpreted as octal literals.
-                  if (charCode == 48 && ((charCode = source.charCodeAt(Index + 1)), charCode >= 48 && charCode <= 57)) {
-                    // Illegal octal literal.
-                    abort();
-                  }
-                  isSigned = false;
-                  // Parse the integer component.
-                  for (; Index < length && ((charCode = source.charCodeAt(Index)), charCode >= 48 && charCode <= 57); Index++);
-                  // Floats cannot contain a leading decimal point; however, this
-                  // case is already accounted for by the parser.
-                  if (source.charCodeAt(Index) == 46) {
-                    position = ++Index;
-                    // Parse the decimal component.
-                    for (; position < length && ((charCode = source.charCodeAt(position)), charCode >= 48 && charCode <= 57); position++);
-                    if (position == Index) {
-                      // Illegal trailing decimal.
-                      abort();
-                    }
-                    Index = position;
-                  }
-                  // Parse exponents. The `e` denoting the exponent is
-                  // case-insensitive.
-                  charCode = source.charCodeAt(Index);
-                  if (charCode == 101 || charCode == 69) {
-                    charCode = source.charCodeAt(++Index);
-                    // Skip past the sign following the exponent, if one is
-                    // specified.
-                    if (charCode == 43 || charCode == 45) {
-                      Index++;
-                    }
-                    // Parse the exponential component.
-                    for (position = Index; position < length && ((charCode = source.charCodeAt(position)), charCode >= 48 && charCode <= 57); position++);
-                    if (position == Index) {
-                      // Illegal empty exponent.
-                      abort();
-                    }
-                    Index = position;
-                  }
-                  // Coerce the parsed value to a JavaScript number.
-                  return +source.slice(begin, Index);
-                }
-                // A negative sign may only precede numbers.
-                if (isSigned) {
-                  abort();
-                }
-                // `true`, `false`, and `null` literals.
-                if (source.slice(Index, Index + 4) == "true") {
-                  Index += 4;
-                  return true;
-                } else if (source.slice(Index, Index + 5) == "false") {
-                  Index += 5;
-                  return false;
-                } else if (source.slice(Index, Index + 4) == "null") {
-                  Index += 4;
-                  return null;
-                }
-                // Unrecognized token.
-                abort();
-            }
-          }
-          // Return the sentinel `$` character if the parser has reached the end
-          // of the source string.
-          return "$";
-        };
-
-        // Internal: Parses a JSON `value` token.
-        var get = function (value) {
-          var results, hasMembers;
-          if (value == "$") {
-            // Unexpected end of input.
-            abort();
-          }
-          if (typeof value == "string") {
-            if ((charIndexBuggy ? value.charAt(0) : value[0]) == "@") {
-              // Remove the sentinel `@` character.
-              return value.slice(1);
-            }
-            // Parse object and array literals.
-            if (value == "[") {
-              // Parses a JSON array, returning a new JavaScript array.
-              results = [];
-              for (;; hasMembers || (hasMembers = true)) {
-                value = lex();
-                // A closing square bracket marks the end of the array literal.
-                if (value == "]") {
-                  break;
-                }
-                // If the array literal contains elements, the current token
-                // should be a comma separating the previous element from the
-                // next.
-                if (hasMembers) {
-                  if (value == ",") {
-                    value = lex();
-                    if (value == "]") {
-                      // Unexpected trailing `,` in array literal.
-                      abort();
-                    }
-                  } else {
-                    // A `,` must separate each array element.
-                    abort();
-                  }
-                }
-                // Elisions and leading commas are not permitted.
-                if (value == ",") {
-                  abort();
-                }
-                results.push(get(value));
-              }
-              return results;
-            } else if (value == "{") {
-              // Parses a JSON object, returning a new JavaScript object.
-              results = {};
-              for (;; hasMembers || (hasMembers = true)) {
-                value = lex();
-                // A closing curly brace marks the end of the object literal.
-                if (value == "}") {
-                  break;
-                }
-                // If the object literal contains members, the current token
-                // should be a comma separator.
-                if (hasMembers) {
-                  if (value == ",") {
-                    value = lex();
-                    if (value == "}") {
-                      // Unexpected trailing `,` in object literal.
-                      abort();
-                    }
-                  } else {
-                    // A `,` must separate each object member.
-                    abort();
-                  }
-                }
-                // Leading commas are not permitted, object property names must be
-                // double-quoted strings, and a `:` must separate each property
-                // name and value.
-                if (value == "," || typeof value != "string" || (charIndexBuggy ? value.charAt(0) : value[0]) != "@" || lex() != ":") {
-                  abort();
-                }
-                results[value.slice(1)] = get(lex());
-              }
-              return results;
-            }
-            // Unexpected token encountered.
-            abort();
-          }
-          return value;
-        };
-
-        // Internal: Updates a traversed object member.
-        var update = function (source, property, callback) {
-          var element = walk(source, property, callback);
-          if (element === undef) {
-            delete source[property];
-          } else {
-            source[property] = element;
-          }
-        };
-
-        // Internal: Recursively traverses a parsed JSON object, invoking the
-        // `callback` function for each value. This is an implementation of the
-        // `Walk(holder, name)` operation defined in ES 5.1 section 15.12.2.
-        var walk = function (source, property, callback) {
-          var value = source[property], length;
-          if (typeof value == "object" && value) {
-            // `forEach` can't be used to traverse an array in Opera <= 8.54
-            // because its `Object#hasOwnProperty` implementation returns `false`
-            // for array indices (e.g., `![1, 2, 3].hasOwnProperty("0")`).
-            if (getClass.call(value) == arrayClass) {
-              for (length = value.length; length--;) {
-                update(value, length, callback);
-              }
-            } else {
-              forEach(value, function (property) {
-                update(value, property, callback);
-              });
-            }
-          }
-          return callback.call(source, property, value);
-        };
-
-        // Public: `JSON.parse`. See ES 5.1 section 15.12.2.
-        exports.parse = function (source, callback) {
-          var result, value;
-          Index = 0;
-          Source = "" + source;
-          result = get(lex());
-          // If a JSON string contains multiple tokens, it is invalid.
-          if (lex() != "$") {
-            abort();
-          }
-          // Reset the parser state.
-          Index = Source = null;
-          return callback && getClass.call(callback) == functionClass ? walk((value = {}, value[""] = result, value), "", callback) : result;
-        };
-      }
-    }
-
-    exports["runInContext"] = runInContext;
-    return exports;
-  }
-
-  if (freeExports && !isLoader) {
-    // Export for CommonJS environments.
-    runInContext(root, freeExports);
-  } else {
-    // Export for web browsers and JavaScript engines.
-    var nativeJSON = root.JSON,
-        previousJSON = root["JSON3"],
-        isRestored = false;
-
-    var JSON3 = runInContext(root, (root["JSON3"] = {
-      // Public: Restores the original value of the global `JSON` object and
-      // returns a reference to the `JSON3` object.
-      "noConflict": function () {
-        if (!isRestored) {
-          isRestored = true;
-          root.JSON = nativeJSON;
-          root["JSON3"] = previousJSON;
-          nativeJSON = previousJSON = null;
-        }
-        return JSON3;
-      }
-    }));
-
-    root.JSON = {
-      "parse": JSON3.parse,
-      "stringify": JSON3.stringify
-    };
-  }
-
-  // Export for asynchronous module loaders.
-  if (isLoader) {
-    define(function () {
-      return JSON3;
-    });
-  }
-}).call(this);
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{}],47:[function(require,module,exports){
-module.exports = toArray
-
-function toArray(list, index) {
-    var array = []
-
-    index = index || 0
-
-    for (var i = index || 0; i < list.length; i++) {
-        array[i - index] = list[i]
-    }
-
-    return array
-}
-
-},{}],48:[function(require,module,exports){
-(function (global){
-/*! https://mths.be/utf8js v2.0.0 by @mathias */
-;(function(root) {
-
-	// Detect free variables `exports`
-	var freeExports = typeof exports == 'object' && exports;
-
-	// Detect free variable `module`
-	var freeModule = typeof module == 'object' && module &&
-		module.exports == freeExports && module;
-
-	// Detect free variable `global`, from Node.js or Browserified code,
-	// and use it as `root`
-	var freeGlobal = typeof global == 'object' && global;
-	if (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal) {
-		root = freeGlobal;
-	}
-
-	/*--------------------------------------------------------------------------*/
-
-	var stringFromCharCode = String.fromCharCode;
-
-	// Taken from https://mths.be/punycode
-	function ucs2decode(string) {
-		var output = [];
-		var counter = 0;
-		var length = string.length;
-		var value;
-		var extra;
-		while (counter < length) {
-			value = string.charCodeAt(counter++);
-			if (value >= 0xD800 && value <= 0xDBFF && counter < length) {
-				// high surrogate, and there is a next character
-				extra = string.charCodeAt(counter++);
-				if ((extra & 0xFC00) == 0xDC00) { // low surrogate
-					output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);
-				} else {
-					// unmatched surrogate; only append this code unit, in case the next
-					// code unit is the high surrogate of a surrogate pair
-					output.push(value);
-					counter--;
-				}
-			} else {
-				output.push(value);
-			}
-		}
-		return output;
-	}
-
-	// Taken from https://mths.be/punycode
-	function ucs2encode(array) {
-		var length = array.length;
-		var index = -1;
-		var value;
-		var output = '';
-		while (++index < length) {
-			value = array[index];
-			if (value > 0xFFFF) {
-				value -= 0x10000;
-				output += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);
-				value = 0xDC00 | value & 0x3FF;
-			}
-			output += stringFromCharCode(value);
-		}
-		return output;
-	}
-
-	function checkScalarValue(codePoint) {
-		if (codePoint >= 0xD800 && codePoint <= 0xDFFF) {
-			throw Error(
-				'Lone surrogate U+' + codePoint.toString(16).toUpperCase() +
-				' is not a scalar value'
-			);
-		}
-	}
-	/*--------------------------------------------------------------------------*/
-
-	function createByte(codePoint, shift) {
-		return stringFromCharCode(((codePoint >> shift) & 0x3F) | 0x80);
-	}
-
-	function encodeCodePoint(codePoint) {
-		if ((codePoint & 0xFFFFFF80) == 0) { // 1-byte sequence
-			return stringFromCharCode(codePoint);
-		}
-		var symbol = '';
-		if ((codePoint & 0xFFFFF800) == 0) { // 2-byte sequence
-			symbol = stringFromCharCode(((codePoint >> 6) & 0x1F) | 0xC0);
-		}
-		else if ((codePoint & 0xFFFF0000) == 0) { // 3-byte sequence
-			checkScalarValue(codePoint);
-			symbol = stringFromCharCode(((codePoint >> 12) & 0x0F) | 0xE0);
-			symbol += createByte(codePoint, 6);
-		}
-		else if ((codePoint & 0xFFE00000) == 0) { // 4-byte sequence
-			symbol = stringFromCharCode(((codePoint >> 18) & 0x07) | 0xF0);
-			symbol += createByte(codePoint, 12);
-			symbol += createByte(codePoint, 6);
-		}
-		symbol += stringFromCharCode((codePoint & 0x3F) | 0x80);
-		return symbol;
-	}
-
-	function utf8encode(string) {
-		var codePoints = ucs2decode(string);
-		var length = codePoints.length;
-		var index = -1;
-		var codePoint;
-		var byteString = '';
-		while (++index < length) {
-			codePoint = codePoints[index];
-			byteString += encodeCodePoint(codePoint);
-		}
-		return byteString;
-	}
-
-	/*--------------------------------------------------------------------------*/
-
-	function readContinuationByte() {
-		if (byteIndex >= byteCount) {
-			throw Error('Invalid byte index');
-		}
-
-		var continuationByte = byteArray[byteIndex] & 0xFF;
-		byteIndex++;
-
-		if ((continuationByte & 0xC0) == 0x80) {
-			return continuationByte & 0x3F;
-		}
-
-		// If we end up here, it’s not a continuation byte
-		throw Error('Invalid continuation byte');
-	}
-
-	function decodeSymbol() {
-		var byte1;
-		var byte2;
-		var byte3;
-		var byte4;
-		var codePoint;
-
-		if (byteIndex > byteCount) {
-			throw Error('Invalid byte index');
-		}
-
-		if (byteIndex == byteCount) {
-			return false;
-		}
-
-		// Read first byte
-		byte1 = byteArray[byteIndex] & 0xFF;
-		byteIndex++;
-
-		// 1-byte sequence (no continuation bytes)
-		if ((byte1 & 0x80) == 0) {
-			return byte1;
-		}
-
-		// 2-byte sequence
-		if ((byte1 & 0xE0) == 0xC0) {
-			var byte2 = readContinuationByte();
-			codePoint = ((byte1 & 0x1F) << 6) | byte2;
-			if (codePoint >= 0x80) {
-				return codePoint;
-			} else {
-				throw Error('Invalid continuation byte');
-			}
-		}
-
-		// 3-byte sequence (may include unpaired surrogates)
-		if ((byte1 & 0xF0) == 0xE0) {
-			byte2 = readContinuationByte();
-			byte3 = readContinuationByte();
-			codePoint = ((byte1 & 0x0F) << 12) | (byte2 << 6) | byte3;
-			if (codePoint >= 0x0800) {
-				checkScalarValue(codePoint);
-				return codePoint;
-			} else {
-				throw Error('Invalid continuation byte');
-			}
-		}
-
-		// 4-byte sequence
-		if ((byte1 & 0xF8) == 0xF0) {
-			byte2 = readContinuationByte();
-			byte3 = readContinuationByte();
-			byte4 = readContinuationByte();
-			codePoint = ((byte1 & 0x0F) << 0x12) | (byte2 << 0x0C) |
-				(byte3 << 0x06) | byte4;
-			if (codePoint >= 0x010000 && codePoint <= 0x10FFFF) {
-				return codePoint;
-			}
-		}
-
-		throw Error('Invalid UTF-8 detected');
-	}
-
-	var byteArray;
-	var byteCount;
-	var byteIndex;
-	function utf8decode(byteString) {
-		byteArray = ucs2decode(byteString);
-		byteCount = byteArray.length;
-		byteIndex = 0;
-		var codePoints = [];
-		var tmp;
-		while ((tmp = decodeSymbol()) !== false) {
-			codePoints.push(tmp);
-		}
-		return ucs2encode(codePoints);
-	}
-
-	/*--------------------------------------------------------------------------*/
-
-	var utf8 = {
-		'version': '2.0.0',
-		'encode': utf8encode,
-		'decode': utf8decode
-	};
-
-	// Some AMD build optimizers, like r.js, check for specific condition patterns
-	// like the following:
-	if (
-		typeof define == 'function' &&
-		typeof define.amd == 'object' &&
-		define.amd
-	) {
-		define(function() {
-			return utf8;
-		});
-	}	else if (freeExports && !freeExports.nodeType) {
-		if (freeModule) { // in Node.js or RingoJS v0.8.0+
-			freeModule.exports = utf8;
-		} else { // in Narwhal or RingoJS v0.7.0-
-			var object = {};
-			var hasOwnProperty = object.hasOwnProperty;
-			for (var key in utf8) {
-				hasOwnProperty.call(utf8, key) && (freeExports[key] = utf8[key]);
-			}
-		}
-	} else { // in Rhino or a web browser
-		root.utf8 = utf8;
-	}
-
-}(this));
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{}],49:[function(require,module,exports){
-'use strict';
-
-var alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split('')
-  , length = 64
-  , map = {}
-  , seed = 0
-  , i = 0
-  , prev;
-
-/**
- * Return a string representing the specified number.
- *
- * @param {Number} num The number to convert.
- * @returns {String} The string representation of the number.
- * @api public
- */
-function encode(num) {
-  var encoded = '';
-
-  do {
-    encoded = alphabet[num % length] + encoded;
-    num = Math.floor(num / length);
-  } while (num > 0);
-
-  return encoded;
-}
-
-/**
- * Return the integer value specified by the given string.
- *
- * @param {String} str The string to convert.
- * @returns {Number} The integer value represented by the string.
- * @api public
- */
-function decode(str) {
-  var decoded = 0;
-
-  for (i = 0; i < str.length; i++) {
-    decoded = decoded * length + map[str.charAt(i)];
-  }
-
-  return decoded;
-}
-
-/**
- * Yeast: A tiny growing id generator.
- *
- * @returns {String} A unique id.
- * @api public
- */
-function yeast() {
-  var now = encode(+new Date());
-
-  if (now !== prev) return seed = 0, prev = now;
-  return now +'.'+ encode(seed++);
-}
-
-//
-// Map each character to its index.
-//
-for (; i < length; i++) map[alphabet[i]] = i;
-
-//
-// Expose the `yeast`, `encode` and `decode` functions.
-//
-yeast.encode = encode;
-yeast.decode = decode;
-module.exports = yeast;
-
-},{}]},{},[1])
-//# 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e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require==\"function\"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error(\"Cannot find module '\"+o+\"'\");throw f.code=\"MODULE_NOT_FOUND\",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require==\"function\"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})","const socket = require('./socket')\n\nsocket.on('client.display', (data) => {\n  let exists = document.getElementById(data.key)\n\n  if (exists) {\n    exists.tag.remove()\n    exists.remove()\n  }\n\n  let element = document.createElement('div')\n  element.innerHTML = data.html\n  element.id = data.key\n  element.classList.add('root-element')\n\n  let styleElement = document.createElement('style')\n  styleElement.setAttribute('type', 'text/css')\n  styleElement.innerHTML = data.css\n\n  element.tag = styleElement\n\n  document.body.appendChild(element)\n  document.head.appendChild(styleElement)\n\n  window.setTimeout(() => {\n    element.classList.add('root-element-display')\n  }, 50)\n})\n\nsocket.on('client.hide', (data) => {\n  let exists = document.getElementById(data.key)\n\n  if (exists) {\n    exists.classList.remove('root-element-display')\n\n    window.setTimeout(() => {\n      exists.tag.remove()\n      exists.remove()\n    }, 1500)\n  }\n})\n","const io = require('socket.io-client')\n\nconst socket = io()\n\nmodule.exports = socket\n","module.exports = after\n\nfunction after(count, callback, err_cb) {\n    var bail = false\n    err_cb = err_cb || noop\n    proxy.count = count\n\n    return (count === 0) ? callback() : proxy\n\n    function proxy(err, result) {\n        if (proxy.count <= 0) {\n            throw new Error('after called too many times')\n        }\n        --proxy.count\n\n        // after first error, rest are passed to err_cb\n        if (err) {\n            bail = true\n            callback(err)\n            // future error callbacks will go to error handler\n            callback = err_cb\n        } else if (proxy.count === 0 && !bail) {\n            callback(null, result)\n        }\n    }\n}\n\nfunction noop() {}\n","/**\n * An abstraction for slicing an arraybuffer even when\n * ArrayBuffer.prototype.slice is not supported\n *\n * @api public\n */\n\nmodule.exports = function(arraybuffer, start, end) {\n  var bytes = arraybuffer.byteLength;\n  start = start || 0;\n  end = end || bytes;\n\n  if (arraybuffer.slice) { return arraybuffer.slice(start, end); }\n\n  if (start < 0) { start += bytes; }\n  if (end < 0) { end += bytes; }\n  if (end > bytes) { end = bytes; }\n\n  if (start >= bytes || start >= end || bytes === 0) {\n    return new ArrayBuffer(0);\n  }\n\n  var abv = new Uint8Array(arraybuffer);\n  var result = new Uint8Array(end - start);\n  for (var i = start, ii = 0; i < end; i++, ii++) {\n    result[ii] = abv[i];\n  }\n  return result.buffer;\n};\n","\n/**\n * Expose `Backoff`.\n */\n\nmodule.exports = Backoff;\n\n/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\n\nfunction Backoff(opts) {\n  opts = opts || {};\n  this.ms = opts.min || 100;\n  this.max = opts.max || 10000;\n  this.factor = opts.factor || 2;\n  this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n  this.attempts = 0;\n}\n\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\n\nBackoff.prototype.duration = function(){\n  var ms = this.ms * Math.pow(this.factor, this.attempts++);\n  if (this.jitter) {\n    var rand =  Math.random();\n    var deviation = Math.floor(rand * this.jitter * ms);\n    ms = (Math.floor(rand * 10) & 1) == 0  ? ms - deviation : ms + deviation;\n  }\n  return Math.min(ms, this.max) | 0;\n};\n\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\n\nBackoff.prototype.reset = function(){\n  this.attempts = 0;\n};\n\n/**\n * Set the minimum duration\n *\n * @api public\n */\n\nBackoff.prototype.setMin = function(min){\n  this.ms = min;\n};\n\n/**\n * Set the maximum duration\n *\n * @api public\n */\n\nBackoff.prototype.setMax = function(max){\n  this.max = max;\n};\n\n/**\n * Set the jitter\n *\n * @api public\n */\n\nBackoff.prototype.setJitter = function(jitter){\n  this.jitter = jitter;\n};\n\n","/*\n * base64-arraybuffer\n * https://github.com/niklasvh/base64-arraybuffer\n *\n * Copyright (c) 2012 Niklas von Hertzen\n * Licensed under the MIT license.\n */\n(function(chars){\n  \"use strict\";\n\n  exports.encode = function(arraybuffer) {\n    var bytes = new Uint8Array(arraybuffer),\n    i, len = bytes.length, base64 = \"\";\n\n    for (i = 0; i < len; i+=3) {\n      base64 += chars[bytes[i] >> 2];\n      base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n      base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n      base64 += chars[bytes[i + 2] & 63];\n    }\n\n    if ((len % 3) === 2) {\n      base64 = base64.substring(0, base64.length - 1) + \"=\";\n    } else if (len % 3 === 1) {\n      base64 = base64.substring(0, base64.length - 2) + \"==\";\n    }\n\n    return base64;\n  };\n\n  exports.decode =  function(base64) {\n    var bufferLength = base64.length * 0.75,\n    len = base64.length, i, p = 0,\n    encoded1, encoded2, encoded3, encoded4;\n\n    if (base64[base64.length - 1] === \"=\") {\n      bufferLength--;\n      if (base64[base64.length - 2] === \"=\") {\n        bufferLength--;\n      }\n    }\n\n    var arraybuffer = new ArrayBuffer(bufferLength),\n    bytes = new Uint8Array(arraybuffer);\n\n    for (i = 0; i < len; i+=4) {\n      encoded1 = chars.indexOf(base64[i]);\n      encoded2 = chars.indexOf(base64[i+1]);\n      encoded3 = chars.indexOf(base64[i+2]);\n      encoded4 = chars.indexOf(base64[i+3]);\n\n      bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n      bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n      bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n\n    return arraybuffer;\n  };\n})(\"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/\");\n","/**\n * Create a blob builder even when vendor prefixes exist\n */\n\nvar BlobBuilder = global.BlobBuilder\n  || global.WebKitBlobBuilder\n  || global.MSBlobBuilder\n  || global.MozBlobBuilder;\n\n/**\n * Check if Blob constructor is supported\n */\n\nvar blobSupported = (function() {\n  try {\n    var a = new Blob(['hi']);\n    return a.size === 2;\n  } catch(e) {\n    return false;\n  }\n})();\n\n/**\n * Check if Blob constructor supports ArrayBufferViews\n * Fails in Safari 6, so we need to map to ArrayBuffers there.\n */\n\nvar blobSupportsArrayBufferView = blobSupported && (function() {\n  try {\n    var b = new Blob([new Uint8Array([1,2])]);\n    return b.size === 2;\n  } catch(e) {\n    return false;\n  }\n})();\n\n/**\n * Check if BlobBuilder is supported\n */\n\nvar blobBuilderSupported = BlobBuilder\n  && BlobBuilder.prototype.append\n  && BlobBuilder.prototype.getBlob;\n\n/**\n * Helper function that maps ArrayBufferViews to ArrayBuffers\n * Used by BlobBuilder constructor and old browsers that didn't\n * support it in the Blob constructor.\n */\n\nfunction mapArrayBufferViews(ary) {\n  for (var i = 0; i < ary.length; i++) {\n    var chunk = ary[i];\n    if (chunk.buffer instanceof ArrayBuffer) {\n      var buf = chunk.buffer;\n\n      // if this is a subarray, make a copy so we only\n      // include the subarray region from the underlying buffer\n      if (chunk.byteLength !== buf.byteLength) {\n        var copy = new Uint8Array(chunk.byteLength);\n        copy.set(new Uint8Array(buf, chunk.byteOffset, chunk.byteLength));\n        buf = copy.buffer;\n      }\n\n      ary[i] = buf;\n    }\n  }\n}\n\nfunction BlobBuilderConstructor(ary, options) {\n  options = options || {};\n\n  var bb = new BlobBuilder();\n  mapArrayBufferViews(ary);\n\n  for (var i = 0; i < ary.length; i++) {\n    bb.append(ary[i]);\n  }\n\n  return (options.type) ? bb.getBlob(options.type) : bb.getBlob();\n};\n\nfunction BlobConstructor(ary, options) {\n  mapArrayBufferViews(ary);\n  return new Blob(ary, options || {});\n};\n\nmodule.exports = (function() {\n  if (blobSupported) {\n    return blobSupportsArrayBufferView ? global.Blob : BlobConstructor;\n  } else if (blobBuilderSupported) {\n    return BlobBuilderConstructor;\n  } else {\n    return undefined;\n  }\n})();\n","","/**\n * Slice reference.\n */\n\nvar slice = [].slice;\n\n/**\n * Bind `obj` to `fn`.\n *\n * @param {Object} obj\n * @param {Function|String} fn or string\n * @return {Function}\n * @api public\n */\n\nmodule.exports = function(obj, fn){\n  if ('string' == typeof fn) fn = obj[fn];\n  if ('function' != typeof fn) throw new Error('bind() requires a function');\n  var args = slice.call(arguments, 2);\n  return function(){\n    return fn.apply(obj, args.concat(slice.call(arguments)));\n  }\n};\n","\n/**\n * Expose `Emitter`.\n */\n\nmodule.exports = Emitter;\n\n/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nfunction Emitter(obj) {\n  if (obj) return mixin(obj);\n};\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n  for (var key in Emitter.prototype) {\n    obj[key] = Emitter.prototype[key];\n  }\n  return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n  (this._callbacks[event] = this._callbacks[event] || [])\n    .push(fn);\n  return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n  var self = this;\n  this._callbacks = this._callbacks || {};\n\n  function on() {\n    self.off(event, on);\n    fn.apply(this, arguments);\n  }\n\n  on.fn = fn;\n  this.on(event, on);\n  return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n\n  // all\n  if (0 == arguments.length) {\n    this._callbacks = {};\n    return this;\n  }\n\n  // specific event\n  var callbacks = this._callbacks[event];\n  if (!callbacks) return this;\n\n  // remove all handlers\n  if (1 == arguments.length) {\n    delete this._callbacks[event];\n    return this;\n  }\n\n  // remove specific handler\n  var cb;\n  for (var i = 0; i < callbacks.length; i++) {\n    cb = callbacks[i];\n    if (cb === fn || cb.fn === fn) {\n      callbacks.splice(i, 1);\n      break;\n    }\n  }\n  return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n  this._callbacks = this._callbacks || {};\n  var args = [].slice.call(arguments, 1)\n    , callbacks = this._callbacks[event];\n\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\n      callbacks[i].apply(this, args);\n    }\n  }\n\n  return this;\n};\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n  this._callbacks = this._callbacks || {};\n  return this._callbacks[event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n  return !! this.listeners(event).length;\n};\n","\nmodule.exports = function(a, b){\n  var fn = function(){};\n  fn.prototype = b.prototype;\n  a.prototype = new fn;\n  a.prototype.constructor = a;\n};","\n/**\n * This is the web browser implementation of `debug()`.\n *\n * Expose `debug()` as the module.\n */\n\nexports = module.exports = require('./debug');\nexports.log = log;\nexports.formatArgs = formatArgs;\nexports.save = save;\nexports.load = load;\nexports.useColors = useColors;\nexports.storage = 'undefined' != typeof chrome\n               && 'undefined' != typeof chrome.storage\n                  ? chrome.storage.local\n                  : localstorage();\n\n/**\n * Colors.\n */\n\nexports.colors = [\n  'lightseagreen',\n  'forestgreen',\n  'goldenrod',\n  'dodgerblue',\n  'darkorchid',\n  'crimson'\n];\n\n/**\n * Currently only WebKit-based Web Inspectors, Firefox >= v31,\n * and the Firebug extension (any Firefox version) are known\n * to support \"%c\" CSS customizations.\n *\n * TODO: add a `localStorage` variable to explicitly enable/disable colors\n */\n\nfunction useColors() {\n  // is webkit? http://stackoverflow.com/a/16459606/376773\n  return ('WebkitAppearance' in document.documentElement.style) ||\n    // is firebug? http://stackoverflow.com/a/398120/376773\n    (window.console && (console.firebug || (console.exception && console.table))) ||\n    // is firefox >= v31?\n    // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages\n    (navigator.userAgent.toLowerCase().match(/firefox\\/(\\d+)/) && parseInt(RegExp.$1, 10) >= 31);\n}\n\n/**\n * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.\n */\n\nexports.formatters.j = function(v) {\n  return JSON.stringify(v);\n};\n\n\n/**\n * Colorize log arguments if enabled.\n *\n * @api public\n */\n\nfunction formatArgs() {\n  var args = arguments;\n  var useColors = this.useColors;\n\n  args[0] = (useColors ? '%c' : '')\n    + this.namespace\n    + (useColors ? ' %c' : ' ')\n    + args[0]\n    + (useColors ? '%c ' : ' ')\n    + '+' + exports.humanize(this.diff);\n\n  if (!useColors) return args;\n\n  var c = 'color: ' + this.color;\n  args = [args[0], c, 'color: inherit'].concat(Array.prototype.slice.call(args, 1));\n\n  // the final \"%c\" is somewhat tricky, because there could be other\n  // arguments passed either before or after the %c, so we need to\n  // figure out the correct index to insert the CSS into\n  var index = 0;\n  var lastC = 0;\n  args[0].replace(/%[a-z%]/g, function(match) {\n    if ('%%' === match) return;\n    index++;\n    if ('%c' === match) {\n      // we only are interested in the *last* %c\n      // (the user may have provided their own)\n      lastC = index;\n    }\n  });\n\n  args.splice(lastC, 0, c);\n  return args;\n}\n\n/**\n * Invokes `console.log()` when available.\n * No-op when `console.log` is not a \"function\".\n *\n * @api public\n */\n\nfunction log() {\n  // this hackery is required for IE8/9, where\n  // the `console.log` function doesn't have 'apply'\n  return 'object' === typeof console\n    && console.log\n    && Function.prototype.apply.call(console.log, console, arguments);\n}\n\n/**\n * Save `namespaces`.\n *\n * @param {String} namespaces\n * @api private\n */\n\nfunction save(namespaces) {\n  try {\n    if (null == namespaces) {\n      exports.storage.removeItem('debug');\n    } else {\n      exports.storage.debug = namespaces;\n    }\n  } catch(e) {}\n}\n\n/**\n * Load `namespaces`.\n *\n * @return {String} returns the previously persisted debug modes\n * @api private\n */\n\nfunction load() {\n  var r;\n  try {\n    r = exports.storage.debug;\n  } catch(e) {}\n  return r;\n}\n\n/**\n * Enable namespaces listed in `localStorage.debug` initially.\n */\n\nexports.enable(load());\n\n/**\n * Localstorage attempts to return the localstorage.\n *\n * This is necessary because safari throws\n * when a user disables cookies/localstorage\n * and you attempt to access it.\n *\n * @return {LocalStorage}\n * @api private\n */\n\nfunction localstorage(){\n  try {\n    return window.localStorage;\n  } catch (e) {}\n}\n","\n/**\n * This is the common logic for both the Node.js and web browser\n * implementations of `debug()`.\n *\n * Expose `debug()` as the module.\n */\n\nexports = module.exports = debug;\nexports.coerce = coerce;\nexports.disable = disable;\nexports.enable = enable;\nexports.enabled = enabled;\nexports.humanize = require('ms');\n\n/**\n * The currently active debug mode names, and names to skip.\n */\n\nexports.names = [];\nexports.skips = [];\n\n/**\n * Map of special \"%n\" handling functions, for the debug \"format\" argument.\n *\n * Valid key names are a single, lowercased letter, i.e. \"n\".\n */\n\nexports.formatters = {};\n\n/**\n * Previously assigned color.\n */\n\nvar prevColor = 0;\n\n/**\n * Previous log timestamp.\n */\n\nvar prevTime;\n\n/**\n * Select a color.\n *\n * @return {Number}\n * @api private\n */\n\nfunction selectColor() {\n  return exports.colors[prevColor++ % exports.colors.length];\n}\n\n/**\n * Create a debugger with the given `namespace`.\n *\n * @param {String} namespace\n * @return {Function}\n * @api public\n */\n\nfunction debug(namespace) {\n\n  // define the `disabled` version\n  function disabled() {\n  }\n  disabled.enabled = false;\n\n  // define the `enabled` version\n  function enabled() {\n\n    var self = enabled;\n\n    // set `diff` timestamp\n    var curr = +new Date();\n    var ms = curr - (prevTime || curr);\n    self.diff = ms;\n    self.prev = prevTime;\n    self.curr = curr;\n    prevTime = curr;\n\n    // add the `color` if not set\n    if (null == self.useColors) self.useColors = exports.useColors();\n    if (null == self.color && self.useColors) self.color = selectColor();\n\n    var args = Array.prototype.slice.call(arguments);\n\n    args[0] = exports.coerce(args[0]);\n\n    if ('string' !== typeof args[0]) {\n      // anything else let's inspect with %o\n      args = ['%o'].concat(args);\n    }\n\n    // apply any `formatters` transformations\n    var index = 0;\n    args[0] = args[0].replace(/%([a-z%])/g, function(match, format) {\n      // if we encounter an escaped % then don't increase the array index\n      if (match === '%%') return match;\n      index++;\n      var formatter = exports.formatters[format];\n      if ('function' === typeof formatter) {\n        var val = args[index];\n        match = formatter.call(self, val);\n\n        // now we need to remove `args[index]` since it's inlined in the `format`\n        args.splice(index, 1);\n        index--;\n      }\n      return match;\n    });\n\n    if ('function' === typeof exports.formatArgs) {\n      args = exports.formatArgs.apply(self, args);\n    }\n    var logFn = enabled.log || exports.log || console.log.bind(console);\n    logFn.apply(self, args);\n  }\n  enabled.enabled = true;\n\n  var fn = exports.enabled(namespace) ? enabled : disabled;\n\n  fn.namespace = namespace;\n\n  return fn;\n}\n\n/**\n * Enables a debug mode by namespaces. This can include modes\n * separated by a colon and wildcards.\n *\n * @param {String} namespaces\n * @api public\n */\n\nfunction enable(namespaces) {\n  exports.save(namespaces);\n\n  var split = (namespaces || '').split(/[\\s,]+/);\n  var len = split.length;\n\n  for (var i = 0; i < len; i++) {\n    if (!split[i]) continue; // ignore empty strings\n    namespaces = split[i].replace(/\\*/g, '.*?');\n    if (namespaces[0] === '-') {\n      exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));\n    } else {\n      exports.names.push(new RegExp('^' + namespaces + '$'));\n    }\n  }\n}\n\n/**\n * Disable debug output.\n *\n * @api public\n */\n\nfunction disable() {\n  exports.enable('');\n}\n\n/**\n * Returns true if the given mode name is enabled, false otherwise.\n *\n * @param {String} name\n * @return {Boolean}\n * @api public\n */\n\nfunction enabled(name) {\n  var i, len;\n  for (i = 0, len = exports.skips.length; i < len; i++) {\n    if (exports.skips[i].test(name)) {\n      return false;\n    }\n  }\n  for (i = 0, len = exports.names.length; i < len; i++) {\n    if (exports.names[i].test(name)) {\n      return true;\n    }\n  }\n  return false;\n}\n\n/**\n * Coerce `val`.\n *\n * @param {Mixed} val\n * @return {Mixed}\n * @api private\n */\n\nfunction coerce(val) {\n  if (val instanceof Error) return val.stack || val.message;\n  return val;\n}\n","\nmodule.exports =  require('./lib/');\n","\nmodule.exports = require('./socket');\n\n/**\n * Exports parser\n *\n * @api public\n *\n */\nmodule.exports.parser = require('engine.io-parser');\n","/**\n * Module dependencies.\n */\n\nvar transports = require('./transports');\nvar Emitter = require('component-emitter');\nvar debug = require('debug')('engine.io-client:socket');\nvar index = require('indexof');\nvar parser = require('engine.io-parser');\nvar parseuri = require('parseuri');\nvar parsejson = require('parsejson');\nvar parseqs = require('parseqs');\n\n/**\n * Module exports.\n */\n\nmodule.exports = Socket;\n\n/**\n * Noop function.\n *\n * @api private\n */\n\nfunction noop(){}\n\n/**\n * Socket constructor.\n *\n * @param {String|Object} uri or options\n * @param {Object} options\n * @api public\n */\n\nfunction Socket(uri, opts){\n  if (!(this instanceof Socket)) return new Socket(uri, opts);\n\n  opts = opts || {};\n\n  if (uri && 'object' == typeof uri) {\n    opts = uri;\n    uri = null;\n  }\n\n  if (uri) {\n    uri = parseuri(uri);\n    opts.hostname = uri.host;\n    opts.secure = uri.protocol == 'https' || uri.protocol == 'wss';\n    opts.port = uri.port;\n    if (uri.query) opts.query = uri.query;\n  } else if (opts.host) {\n    opts.hostname = parseuri(opts.host).host;\n  }\n\n  this.secure = null != opts.secure ? opts.secure :\n    (global.location && 'https:' == location.protocol);\n\n  if (opts.hostname && !opts.port) {\n    // if no port is specified manually, use the protocol default\n    opts.port = this.secure ? '443' : '80';\n  }\n\n  this.agent = opts.agent || false;\n  this.hostname = opts.hostname ||\n    (global.location ? location.hostname : 'localhost');\n  this.port = opts.port || (global.location && location.port ?\n       location.port :\n       (this.secure ? 443 : 80));\n  this.query = opts.query || {};\n  if ('string' == typeof this.query) this.query = parseqs.decode(this.query);\n  this.upgrade = false !== opts.upgrade;\n  this.path = (opts.path || '/engine.io').replace(/\\/$/, '') + '/';\n  this.forceJSONP = !!opts.forceJSONP;\n  this.jsonp = false !== opts.jsonp;\n  this.forceBase64 = !!opts.forceBase64;\n  this.enablesXDR = !!opts.enablesXDR;\n  this.timestampParam = opts.timestampParam || 't';\n  this.timestampRequests = opts.timestampRequests;\n  this.transports = opts.transports || ['polling', 'websocket'];\n  this.readyState = '';\n  this.writeBuffer = [];\n  this.policyPort = opts.policyPort || 843;\n  this.rememberUpgrade = opts.rememberUpgrade || false;\n  this.binaryType = null;\n  this.onlyBinaryUpgrades = opts.onlyBinaryUpgrades;\n  this.perMessageDeflate = false !== opts.perMessageDeflate ? (opts.perMessageDeflate || {}) : false;\n\n  if (true === this.perMessageDeflate) this.perMessageDeflate = {};\n  if (this.perMessageDeflate && null == this.perMessageDeflate.threshold) {\n    this.perMessageDeflate.threshold = 1024;\n  }\n\n  // SSL options for Node.js client\n  this.pfx = opts.pfx || null;\n  this.key = opts.key || null;\n  this.passphrase = opts.passphrase || null;\n  this.cert = opts.cert || null;\n  this.ca = opts.ca || null;\n  this.ciphers = opts.ciphers || null;\n  this.rejectUnauthorized = opts.rejectUnauthorized === undefined ? null : opts.rejectUnauthorized;\n\n  // other options for Node.js client\n  var freeGlobal = typeof global == 'object' && global;\n  if (freeGlobal.global === freeGlobal) {\n    if (opts.extraHeaders && Object.keys(opts.extraHeaders).length > 0) {\n      this.extraHeaders = opts.extraHeaders;\n    }\n  }\n\n  this.open();\n}\n\nSocket.priorWebsocketSuccess = false;\n\n/**\n * Mix in `Emitter`.\n */\n\nEmitter(Socket.prototype);\n\n/**\n * Protocol version.\n *\n * @api public\n */\n\nSocket.protocol = parser.protocol; // this is an int\n\n/**\n * Expose deps for legacy compatibility\n * and standalone browser access.\n */\n\nSocket.Socket = Socket;\nSocket.Transport = require('./transport');\nSocket.transports = require('./transports');\nSocket.parser = require('engine.io-parser');\n\n/**\n * Creates transport of the given type.\n *\n * @param {String} transport name\n * @return {Transport}\n * @api private\n */\n\nSocket.prototype.createTransport = function (name) {\n  debug('creating transport \"%s\"', name);\n  var query = clone(this.query);\n\n  // append engine.io protocol identifier\n  query.EIO = parser.protocol;\n\n  // transport name\n  query.transport = name;\n\n  // session id if we already have one\n  if (this.id) query.sid = this.id;\n\n  var transport = new transports[name]({\n    agent: this.agent,\n    hostname: this.hostname,\n    port: this.port,\n    secure: this.secure,\n    path: this.path,\n    query: query,\n    forceJSONP: this.forceJSONP,\n    jsonp: this.jsonp,\n    forceBase64: this.forceBase64,\n    enablesXDR: this.enablesXDR,\n    timestampRequests: this.timestampRequests,\n    timestampParam: this.timestampParam,\n    policyPort: this.policyPort,\n    socket: this,\n    pfx: this.pfx,\n    key: this.key,\n    passphrase: this.passphrase,\n    cert: this.cert,\n    ca: this.ca,\n    ciphers: this.ciphers,\n    rejectUnauthorized: this.rejectUnauthorized,\n    perMessageDeflate: this.perMessageDeflate,\n    extraHeaders: this.extraHeaders\n  });\n\n  return transport;\n};\n\nfunction clone (obj) {\n  var o = {};\n  for (var i in obj) {\n    if (obj.hasOwnProperty(i)) {\n      o[i] = obj[i];\n    }\n  }\n  return o;\n}\n\n/**\n * Initializes transport to use and starts probe.\n *\n * @api private\n */\nSocket.prototype.open = function () {\n  var transport;\n  if (this.rememberUpgrade && Socket.priorWebsocketSuccess && this.transports.indexOf('websocket') != -1) {\n    transport = 'websocket';\n  } else if (0 === this.transports.length) {\n    // Emit error on next tick so it can be listened to\n    var self = this;\n    setTimeout(function() {\n      self.emit('error', 'No transports available');\n    }, 0);\n    return;\n  } else {\n    transport = this.transports[0];\n  }\n  this.readyState = 'opening';\n\n  // Retry with the next transport if the transport is disabled (jsonp: false)\n  try {\n    transport = this.createTransport(transport);\n  } catch (e) {\n    this.transports.shift();\n    this.open();\n    return;\n  }\n\n  transport.open();\n  this.setTransport(transport);\n};\n\n/**\n * Sets the current transport. Disables the existing one (if any).\n *\n * @api private\n */\n\nSocket.prototype.setTransport = function(transport){\n  debug('setting transport %s', transport.name);\n  var self = this;\n\n  if (this.transport) {\n    debug('clearing existing transport %s', this.transport.name);\n    this.transport.removeAllListeners();\n  }\n\n  // set up transport\n  this.transport = transport;\n\n  // set up transport listeners\n  transport\n  .on('drain', function(){\n    self.onDrain();\n  })\n  .on('packet', function(packet){\n    self.onPacket(packet);\n  })\n  .on('error', function(e){\n    self.onError(e);\n  })\n  .on('close', function(){\n    self.onClose('transport close');\n  });\n};\n\n/**\n * Probes a transport.\n *\n * @param {String} transport name\n * @api private\n */\n\nSocket.prototype.probe = function (name) {\n  debug('probing transport \"%s\"', name);\n  var transport = this.createTransport(name, { probe: 1 })\n    , failed = false\n    , self = this;\n\n  Socket.priorWebsocketSuccess = false;\n\n  function onTransportOpen(){\n    if (self.onlyBinaryUpgrades) {\n      var upgradeLosesBinary = !this.supportsBinary && self.transport.supportsBinary;\n      failed = failed || upgradeLosesBinary;\n    }\n    if (failed) return;\n\n    debug('probe transport \"%s\" opened', name);\n    transport.send([{ type: 'ping', data: 'probe' }]);\n    transport.once('packet', function (msg) {\n      if (failed) return;\n      if ('pong' == msg.type && 'probe' == msg.data) {\n        debug('probe transport \"%s\" pong', name);\n        self.upgrading = true;\n        self.emit('upgrading', transport);\n        if (!transport) return;\n        Socket.priorWebsocketSuccess = 'websocket' == transport.name;\n\n        debug('pausing current transport \"%s\"', self.transport.name);\n        self.transport.pause(function () {\n          if (failed) return;\n          if ('closed' == self.readyState) return;\n          debug('changing transport and sending upgrade packet');\n\n          cleanup();\n\n          self.setTransport(transport);\n          transport.send([{ type: 'upgrade' }]);\n          self.emit('upgrade', transport);\n          transport = null;\n          self.upgrading = false;\n          self.flush();\n        });\n      } else {\n        debug('probe transport \"%s\" failed', name);\n        var err = new Error('probe error');\n        err.transport = transport.name;\n        self.emit('upgradeError', err);\n      }\n    });\n  }\n\n  function freezeTransport() {\n    if (failed) return;\n\n    // Any callback called by transport should be ignored since now\n    failed = true;\n\n    cleanup();\n\n    transport.close();\n    transport = null;\n  }\n\n  //Handle any error that happens while probing\n  function onerror(err) {\n    var error = new Error('probe error: ' + err);\n    error.transport = transport.name;\n\n    freezeTransport();\n\n    debug('probe transport \"%s\" failed because of error: %s', name, err);\n\n    self.emit('upgradeError', error);\n  }\n\n  function onTransportClose(){\n    onerror(\"transport closed\");\n  }\n\n  //When the socket is closed while we're probing\n  function onclose(){\n    onerror(\"socket closed\");\n  }\n\n  //When the socket is upgraded while we're probing\n  function onupgrade(to){\n    if (transport && to.name != transport.name) {\n      debug('\"%s\" works - aborting \"%s\"', to.name, transport.name);\n      freezeTransport();\n    }\n  }\n\n  //Remove all listeners on the transport and on self\n  function cleanup(){\n    transport.removeListener('open', onTransportOpen);\n    transport.removeListener('error', onerror);\n    transport.removeListener('close', onTransportClose);\n    self.removeListener('close', onclose);\n    self.removeListener('upgrading', onupgrade);\n  }\n\n  transport.once('open', onTransportOpen);\n  transport.once('error', onerror);\n  transport.once('close', onTransportClose);\n\n  this.once('close', onclose);\n  this.once('upgrading', onupgrade);\n\n  transport.open();\n\n};\n\n/**\n * Called when connection is deemed open.\n *\n * @api public\n */\n\nSocket.prototype.onOpen = function () {\n  debug('socket open');\n  this.readyState = 'open';\n  Socket.priorWebsocketSuccess = 'websocket' == this.transport.name;\n  this.emit('open');\n  this.flush();\n\n  // we check for `readyState` in case an `open`\n  // listener already closed the socket\n  if ('open' == this.readyState && this.upgrade && this.transport.pause) {\n    debug('starting upgrade probes');\n    for (var i = 0, l = this.upgrades.length; i < l; i++) {\n      this.probe(this.upgrades[i]);\n    }\n  }\n};\n\n/**\n * Handles a packet.\n *\n * @api private\n */\n\nSocket.prototype.onPacket = function (packet) {\n  if ('opening' == this.readyState || 'open' == this.readyState) {\n    debug('socket receive: type \"%s\", data \"%s\"', packet.type, packet.data);\n\n    this.emit('packet', packet);\n\n    // Socket is live - any packet counts\n    this.emit('heartbeat');\n\n    switch (packet.type) {\n      case 'open':\n        this.onHandshake(parsejson(packet.data));\n        break;\n\n      case 'pong':\n        this.setPing();\n        this.emit('pong');\n        break;\n\n      case 'error':\n        var err = new Error('server error');\n        err.code = packet.data;\n        this.onError(err);\n        break;\n\n      case 'message':\n        this.emit('data', packet.data);\n        this.emit('message', packet.data);\n        break;\n    }\n  } else {\n    debug('packet received with socket readyState \"%s\"', this.readyState);\n  }\n};\n\n/**\n * Called upon handshake completion.\n *\n * @param {Object} handshake obj\n * @api private\n */\n\nSocket.prototype.onHandshake = function (data) {\n  this.emit('handshake', data);\n  this.id = data.sid;\n  this.transport.query.sid = data.sid;\n  this.upgrades = this.filterUpgrades(data.upgrades);\n  this.pingInterval = data.pingInterval;\n  this.pingTimeout = data.pingTimeout;\n  this.onOpen();\n  // In case open handler closes socket\n  if  ('closed' == this.readyState) return;\n  this.setPing();\n\n  // Prolong liveness of socket on heartbeat\n  this.removeListener('heartbeat', this.onHeartbeat);\n  this.on('heartbeat', this.onHeartbeat);\n};\n\n/**\n * Resets ping timeout.\n *\n * @api private\n */\n\nSocket.prototype.onHeartbeat = function (timeout) {\n  clearTimeout(this.pingTimeoutTimer);\n  var self = this;\n  self.pingTimeoutTimer = setTimeout(function () {\n    if ('closed' == self.readyState) return;\n    self.onClose('ping timeout');\n  }, timeout || (self.pingInterval + self.pingTimeout));\n};\n\n/**\n * Pings server every `this.pingInterval` and expects response\n * within `this.pingTimeout` or closes connection.\n *\n * @api private\n */\n\nSocket.prototype.setPing = function () {\n  var self = this;\n  clearTimeout(self.pingIntervalTimer);\n  self.pingIntervalTimer = setTimeout(function () {\n    debug('writing ping packet - expecting pong within %sms', self.pingTimeout);\n    self.ping();\n    self.onHeartbeat(self.pingTimeout);\n  }, self.pingInterval);\n};\n\n/**\n* Sends a ping packet.\n*\n* @api private\n*/\n\nSocket.prototype.ping = function () {\n  var self = this;\n  this.sendPacket('ping', function(){\n    self.emit('ping');\n  });\n};\n\n/**\n * Called on `drain` event\n *\n * @api private\n */\n\nSocket.prototype.onDrain = function() {\n  this.writeBuffer.splice(0, this.prevBufferLen);\n\n  // setting prevBufferLen = 0 is very important\n  // for example, when upgrading, upgrade packet is sent over,\n  // and a nonzero prevBufferLen could cause problems on `drain`\n  this.prevBufferLen = 0;\n\n  if (0 === this.writeBuffer.length) {\n    this.emit('drain');\n  } else {\n    this.flush();\n  }\n};\n\n/**\n * Flush write buffers.\n *\n * @api private\n */\n\nSocket.prototype.flush = function () {\n  if ('closed' != this.readyState && this.transport.writable &&\n    !this.upgrading && this.writeBuffer.length) {\n    debug('flushing %d packets in socket', this.writeBuffer.length);\n    this.transport.send(this.writeBuffer);\n    // keep track of current length of writeBuffer\n    // splice writeBuffer and callbackBuffer on `drain`\n    this.prevBufferLen = this.writeBuffer.length;\n    this.emit('flush');\n  }\n};\n\n/**\n * Sends a message.\n *\n * @param {String} message.\n * @param {Function} callback function.\n * @param {Object} options.\n * @return {Socket} for chaining.\n * @api public\n */\n\nSocket.prototype.write =\nSocket.prototype.send = function (msg, options, fn) {\n  this.sendPacket('message', msg, options, fn);\n  return this;\n};\n\n/**\n * Sends a packet.\n *\n * @param {String} packet type.\n * @param {String} data.\n * @param {Object} options.\n * @param {Function} callback function.\n * @api private\n */\n\nSocket.prototype.sendPacket = function (type, data, options, fn) {\n  if('function' == typeof data) {\n    fn = data;\n    data = undefined;\n  }\n\n  if ('function' == typeof options) {\n    fn = options;\n    options = null;\n  }\n\n  if ('closing' == this.readyState || 'closed' == this.readyState) {\n    return;\n  }\n\n  options = options || {};\n  options.compress = false !== options.compress;\n\n  var packet = {\n    type: type,\n    data: data,\n    options: options\n  };\n  this.emit('packetCreate', packet);\n  this.writeBuffer.push(packet);\n  if (fn) this.once('flush', fn);\n  this.flush();\n};\n\n/**\n * Closes the connection.\n *\n * @api private\n */\n\nSocket.prototype.close = function () {\n  if ('opening' == this.readyState || 'open' == this.readyState) {\n    this.readyState = 'closing';\n\n    var self = this;\n\n    if (this.writeBuffer.length) {\n      this.once('drain', function() {\n        if (this.upgrading) {\n          waitForUpgrade();\n        } else {\n          close();\n        }\n      });\n    } else if (this.upgrading) {\n      waitForUpgrade();\n    } else {\n      close();\n    }\n  }\n\n  function close() {\n    self.onClose('forced close');\n    debug('socket closing - telling transport to close');\n    self.transport.close();\n  }\n\n  function cleanupAndClose() {\n    self.removeListener('upgrade', cleanupAndClose);\n    self.removeListener('upgradeError', cleanupAndClose);\n    close();\n  }\n\n  function waitForUpgrade() {\n    // wait for upgrade to finish since we can't send packets while pausing a transport\n    self.once('upgrade', cleanupAndClose);\n    self.once('upgradeError', cleanupAndClose);\n  }\n\n  return this;\n};\n\n/**\n * Called upon transport error\n *\n * @api private\n */\n\nSocket.prototype.onError = function (err) {\n  debug('socket error %j', err);\n  Socket.priorWebsocketSuccess = false;\n  this.emit('error', err);\n  this.onClose('transport error', err);\n};\n\n/**\n * Called upon transport close.\n *\n * @api private\n */\n\nSocket.prototype.onClose = function (reason, desc) {\n  if ('opening' == this.readyState || 'open' == this.readyState || 'closing' == this.readyState) {\n    debug('socket close with reason: \"%s\"', reason);\n    var self = this;\n\n    // clear timers\n    clearTimeout(this.pingIntervalTimer);\n    clearTimeout(this.pingTimeoutTimer);\n\n    // stop event from firing again for transport\n    this.transport.removeAllListeners('close');\n\n    // ensure transport won't stay open\n    this.transport.close();\n\n    // ignore further transport communication\n    this.transport.removeAllListeners();\n\n    // set ready state\n    this.readyState = 'closed';\n\n    // clear session id\n    this.id = null;\n\n    // emit close event\n    this.emit('close', reason, desc);\n\n    // clean buffers after, so users can still\n    // grab the buffers on `close` event\n    self.writeBuffer = [];\n    self.prevBufferLen = 0;\n  }\n};\n\n/**\n * Filters upgrades, returning only those matching client transports.\n *\n * @param {Array} server upgrades\n * @api private\n *\n */\n\nSocket.prototype.filterUpgrades = function (upgrades) {\n  var filteredUpgrades = [];\n  for (var i = 0, j = upgrades.length; i<j; i++) {\n    if (~index(this.transports, upgrades[i])) filteredUpgrades.push(upgrades[i]);\n  }\n  return filteredUpgrades;\n};\n","/**\n * Module dependencies.\n */\n\nvar parser = require('engine.io-parser');\nvar Emitter = require('component-emitter');\n\n/**\n * Module exports.\n */\n\nmodule.exports = Transport;\n\n/**\n * Transport abstract constructor.\n *\n * @param {Object} options.\n * @api private\n */\n\nfunction Transport (opts) {\n  this.path = opts.path;\n  this.hostname = opts.hostname;\n  this.port = opts.port;\n  this.secure = opts.secure;\n  this.query = opts.query;\n  this.timestampParam = opts.timestampParam;\n  this.timestampRequests = opts.timestampRequests;\n  this.readyState = '';\n  this.agent = opts.agent || false;\n  this.socket = opts.socket;\n  this.enablesXDR = opts.enablesXDR;\n\n  // SSL options for Node.js client\n  this.pfx = opts.pfx;\n  this.key = opts.key;\n  this.passphrase = opts.passphrase;\n  this.cert = opts.cert;\n  this.ca = opts.ca;\n  this.ciphers = opts.ciphers;\n  this.rejectUnauthorized = opts.rejectUnauthorized;\n\n  // other options for Node.js client\n  this.extraHeaders = opts.extraHeaders;\n}\n\n/**\n * Mix in `Emitter`.\n */\n\nEmitter(Transport.prototype);\n\n/**\n * Emits an error.\n *\n * @param {String} str\n * @return {Transport} for chaining\n * @api public\n */\n\nTransport.prototype.onError = function (msg, desc) {\n  var err = new Error(msg);\n  err.type = 'TransportError';\n  err.description = desc;\n  this.emit('error', err);\n  return this;\n};\n\n/**\n * Opens the transport.\n *\n * @api public\n */\n\nTransport.prototype.open = function () {\n  if ('closed' == this.readyState || '' == this.readyState) {\n    this.readyState = 'opening';\n    this.doOpen();\n  }\n\n  return this;\n};\n\n/**\n * Closes the transport.\n *\n * @api private\n */\n\nTransport.prototype.close = function () {\n  if ('opening' == this.readyState || 'open' == this.readyState) {\n    this.doClose();\n    this.onClose();\n  }\n\n  return this;\n};\n\n/**\n * Sends multiple packets.\n *\n * @param {Array} packets\n * @api private\n */\n\nTransport.prototype.send = function(packets){\n  if ('open' == this.readyState) {\n    this.write(packets);\n  } else {\n    throw new Error('Transport not open');\n  }\n};\n\n/**\n * Called upon open\n *\n * @api private\n */\n\nTransport.prototype.onOpen = function () {\n  this.readyState = 'open';\n  this.writable = true;\n  this.emit('open');\n};\n\n/**\n * Called with data.\n *\n * @param {String} data\n * @api private\n */\n\nTransport.prototype.onData = function(data){\n  var packet = parser.decodePacket(data, this.socket.binaryType);\n  this.onPacket(packet);\n};\n\n/**\n * Called with a decoded packet.\n */\n\nTransport.prototype.onPacket = function (packet) {\n  this.emit('packet', packet);\n};\n\n/**\n * Called upon close.\n *\n * @api private\n */\n\nTransport.prototype.onClose = function () {\n  this.readyState = 'closed';\n  this.emit('close');\n};\n","/**\n * Module dependencies\n */\n\nvar XMLHttpRequest = require('xmlhttprequest-ssl');\nvar XHR = require('./polling-xhr');\nvar JSONP = require('./polling-jsonp');\nvar websocket = require('./websocket');\n\n/**\n * Export transports.\n */\n\nexports.polling = polling;\nexports.websocket = websocket;\n\n/**\n * Polling transport polymorphic constructor.\n * Decides on xhr vs jsonp based on feature detection.\n *\n * @api private\n */\n\nfunction polling(opts){\n  var xhr;\n  var xd = false;\n  var xs = false;\n  var jsonp = false !== opts.jsonp;\n\n  if (global.location) {\n    var isSSL = 'https:' == location.protocol;\n    var port = location.port;\n\n    // some user agents have empty `location.port`\n    if (!port) {\n      port = isSSL ? 443 : 80;\n    }\n\n    xd = opts.hostname != location.hostname || port != opts.port;\n    xs = opts.secure != isSSL;\n  }\n\n  opts.xdomain = xd;\n  opts.xscheme = xs;\n  xhr = new XMLHttpRequest(opts);\n\n  if ('open' in xhr && !opts.forceJSONP) {\n    return new XHR(opts);\n  } else {\n    if (!jsonp) throw new Error('JSONP disabled');\n    return new JSONP(opts);\n  }\n}\n","\n/**\n * Module requirements.\n */\n\nvar Polling = require('./polling');\nvar inherit = require('component-inherit');\n\n/**\n * Module exports.\n */\n\nmodule.exports = JSONPPolling;\n\n/**\n * Cached regular expressions.\n */\n\nvar rNewline = /\\n/g;\nvar rEscapedNewline = /\\\\n/g;\n\n/**\n * Global JSONP callbacks.\n */\n\nvar callbacks;\n\n/**\n * Callbacks count.\n */\n\nvar index = 0;\n\n/**\n * Noop.\n */\n\nfunction empty () { }\n\n/**\n * JSONP Polling constructor.\n *\n * @param {Object} opts.\n * @api public\n */\n\nfunction JSONPPolling (opts) {\n  Polling.call(this, opts);\n\n  this.query = this.query || {};\n\n  // define global callbacks array if not present\n  // we do this here (lazily) to avoid unneeded global pollution\n  if (!callbacks) {\n    // we need to consider multiple engines in the same page\n    if (!global.___eio) global.___eio = [];\n    callbacks = global.___eio;\n  }\n\n  // callback identifier\n  this.index = callbacks.length;\n\n  // add callback to jsonp global\n  var self = this;\n  callbacks.push(function (msg) {\n    self.onData(msg);\n  });\n\n  // append to query string\n  this.query.j = this.index;\n\n  // prevent spurious errors from being emitted when the window is unloaded\n  if (global.document && global.addEventListener) {\n    global.addEventListener('beforeunload', function () {\n      if (self.script) self.script.onerror = empty;\n    }, false);\n  }\n}\n\n/**\n * Inherits from Polling.\n */\n\ninherit(JSONPPolling, Polling);\n\n/*\n * JSONP only supports binary as base64 encoded strings\n */\n\nJSONPPolling.prototype.supportsBinary = false;\n\n/**\n * Closes the socket.\n *\n * @api private\n */\n\nJSONPPolling.prototype.doClose = function () {\n  if (this.script) {\n    this.script.parentNode.removeChild(this.script);\n    this.script = null;\n  }\n\n  if (this.form) {\n    this.form.parentNode.removeChild(this.form);\n    this.form = null;\n    this.iframe = null;\n  }\n\n  Polling.prototype.doClose.call(this);\n};\n\n/**\n * Starts a poll cycle.\n *\n * @api private\n */\n\nJSONPPolling.prototype.doPoll = function () {\n  var self = this;\n  var script = document.createElement('script');\n\n  if (this.script) {\n    this.script.parentNode.removeChild(this.script);\n    this.script = null;\n  }\n\n  script.async = true;\n  script.src = this.uri();\n  script.onerror = function(e){\n    self.onError('jsonp poll error',e);\n  };\n\n  var insertAt = document.getElementsByTagName('script')[0];\n  if (insertAt) {\n    insertAt.parentNode.insertBefore(script, insertAt);\n  }\n  else {\n    (document.head || document.body).appendChild(script);\n  }\n  this.script = script;\n\n  var isUAgecko = 'undefined' != typeof navigator && /gecko/i.test(navigator.userAgent);\n  \n  if (isUAgecko) {\n    setTimeout(function () {\n      var iframe = document.createElement('iframe');\n      document.body.appendChild(iframe);\n      document.body.removeChild(iframe);\n    }, 100);\n  }\n};\n\n/**\n * Writes with a hidden iframe.\n *\n * @param {String} data to send\n * @param {Function} called upon flush.\n * @api private\n */\n\nJSONPPolling.prototype.doWrite = function (data, fn) {\n  var self = this;\n\n  if (!this.form) {\n    var form = document.createElement('form');\n    var area = document.createElement('textarea');\n    var id = this.iframeId = 'eio_iframe_' + this.index;\n    var iframe;\n\n    form.className = 'socketio';\n    form.style.position = 'absolute';\n    form.style.top = '-1000px';\n    form.style.left = '-1000px';\n    form.target = id;\n    form.method = 'POST';\n    form.setAttribute('accept-charset', 'utf-8');\n    area.name = 'd';\n    form.appendChild(area);\n    document.body.appendChild(form);\n\n    this.form = form;\n    this.area = area;\n  }\n\n  this.form.action = this.uri();\n\n  function complete () {\n    initIframe();\n    fn();\n  }\n\n  function initIframe () {\n    if (self.iframe) {\n      try {\n        self.form.removeChild(self.iframe);\n      } catch (e) {\n        self.onError('jsonp polling iframe removal error', e);\n      }\n    }\n\n    try {\n      // ie6 dynamic iframes with target=\"\" support (thanks Chris Lambacher)\n      var html = '<iframe src=\"javascript:0\" name=\"'+ self.iframeId +'\">';\n      iframe = document.createElement(html);\n    } catch (e) {\n      iframe = document.createElement('iframe');\n      iframe.name = self.iframeId;\n      iframe.src = 'javascript:0';\n    }\n\n    iframe.id = self.iframeId;\n\n    self.form.appendChild(iframe);\n    self.iframe = iframe;\n  }\n\n  initIframe();\n\n  // escape \\n to prevent it from being converted into \\r\\n by some UAs\n  // double escaping is required for escaped new lines because unescaping of new lines can be done safely on server-side\n  data = data.replace(rEscapedNewline, '\\\\\\n');\n  this.area.value = data.replace(rNewline, '\\\\n');\n\n  try {\n    this.form.submit();\n  } catch(e) {}\n\n  if (this.iframe.attachEvent) {\n    this.iframe.onreadystatechange = function(){\n      if (self.iframe.readyState == 'complete') {\n        complete();\n      }\n    };\n  } else {\n    this.iframe.onload = complete;\n  }\n};\n","/**\n * Module requirements.\n */\n\nvar XMLHttpRequest = require('xmlhttprequest-ssl');\nvar Polling = require('./polling');\nvar Emitter = require('component-emitter');\nvar inherit = require('component-inherit');\nvar debug = require('debug')('engine.io-client:polling-xhr');\n\n/**\n * Module exports.\n */\n\nmodule.exports = XHR;\nmodule.exports.Request = Request;\n\n/**\n * Empty function\n */\n\nfunction empty(){}\n\n/**\n * XHR Polling constructor.\n *\n * @param {Object} opts\n * @api public\n */\n\nfunction XHR(opts){\n  Polling.call(this, opts);\n\n  if (global.location) {\n    var isSSL = 'https:' == location.protocol;\n    var port = location.port;\n\n    // some user agents have empty `location.port`\n    if (!port) {\n      port = isSSL ? 443 : 80;\n    }\n\n    this.xd = opts.hostname != global.location.hostname ||\n      port != opts.port;\n    this.xs = opts.secure != isSSL;\n  } else {\n    this.extraHeaders = opts.extraHeaders;\n  }\n}\n\n/**\n * Inherits from Polling.\n */\n\ninherit(XHR, Polling);\n\n/**\n * XHR supports binary\n */\n\nXHR.prototype.supportsBinary = true;\n\n/**\n * Creates a request.\n *\n * @param {String} method\n * @api private\n */\n\nXHR.prototype.request = function(opts){\n  opts = opts || {};\n  opts.uri = this.uri();\n  opts.xd = this.xd;\n  opts.xs = this.xs;\n  opts.agent = this.agent || false;\n  opts.supportsBinary = this.supportsBinary;\n  opts.enablesXDR = this.enablesXDR;\n\n  // SSL options for Node.js client\n  opts.pfx = this.pfx;\n  opts.key = this.key;\n  opts.passphrase = this.passphrase;\n  opts.cert = this.cert;\n  opts.ca = this.ca;\n  opts.ciphers = this.ciphers;\n  opts.rejectUnauthorized = this.rejectUnauthorized;\n\n  // other options for Node.js client\n  opts.extraHeaders = this.extraHeaders;\n\n  return new Request(opts);\n};\n\n/**\n * Sends data.\n *\n * @param {String} data to send.\n * @param {Function} called upon flush.\n * @api private\n */\n\nXHR.prototype.doWrite = function(data, fn){\n  var isBinary = typeof data !== 'string' && data !== undefined;\n  var req = this.request({ method: 'POST', data: data, isBinary: isBinary });\n  var self = this;\n  req.on('success', fn);\n  req.on('error', function(err){\n    self.onError('xhr post error', err);\n  });\n  this.sendXhr = req;\n};\n\n/**\n * Starts a poll cycle.\n *\n * @api private\n */\n\nXHR.prototype.doPoll = function(){\n  debug('xhr poll');\n  var req = this.request();\n  var self = this;\n  req.on('data', function(data){\n    self.onData(data);\n  });\n  req.on('error', function(err){\n    self.onError('xhr poll error', err);\n  });\n  this.pollXhr = req;\n};\n\n/**\n * Request constructor\n *\n * @param {Object} options\n * @api public\n */\n\nfunction Request(opts){\n  this.method = opts.method || 'GET';\n  this.uri = opts.uri;\n  this.xd = !!opts.xd;\n  this.xs = !!opts.xs;\n  this.async = false !== opts.async;\n  this.data = undefined != opts.data ? opts.data : null;\n  this.agent = opts.agent;\n  this.isBinary = opts.isBinary;\n  this.supportsBinary = opts.supportsBinary;\n  this.enablesXDR = opts.enablesXDR;\n\n  // SSL options for Node.js client\n  this.pfx = opts.pfx;\n  this.key = opts.key;\n  this.passphrase = opts.passphrase;\n  this.cert = opts.cert;\n  this.ca = opts.ca;\n  this.ciphers = opts.ciphers;\n  this.rejectUnauthorized = opts.rejectUnauthorized;\n\n  // other options for Node.js client\n  this.extraHeaders = opts.extraHeaders;\n\n  this.create();\n}\n\n/**\n * Mix in `Emitter`.\n */\n\nEmitter(Request.prototype);\n\n/**\n * Creates the XHR object and sends the request.\n *\n * @api private\n */\n\nRequest.prototype.create = function(){\n  var opts = { agent: this.agent, xdomain: this.xd, xscheme: this.xs, enablesXDR: this.enablesXDR };\n\n  // SSL options for Node.js client\n  opts.pfx = this.pfx;\n  opts.key = this.key;\n  opts.passphrase = this.passphrase;\n  opts.cert = this.cert;\n  opts.ca = this.ca;\n  opts.ciphers = this.ciphers;\n  opts.rejectUnauthorized = this.rejectUnauthorized;\n\n  var xhr = this.xhr = new XMLHttpRequest(opts);\n  var self = this;\n\n  try {\n    debug('xhr open %s: %s', this.method, this.uri);\n    xhr.open(this.method, this.uri, this.async);\n    try {\n      if (this.extraHeaders) {\n        xhr.setDisableHeaderCheck(true);\n        for (var i in this.extraHeaders) {\n          if (this.extraHeaders.hasOwnProperty(i)) {\n            xhr.setRequestHeader(i, this.extraHeaders[i]);\n          }\n        }\n      }\n    } catch (e) {}\n    if (this.supportsBinary) {\n      // This has to be done after open because Firefox is stupid\n      // http://stackoverflow.com/questions/13216903/get-binary-data-with-xmlhttprequest-in-a-firefox-extension\n      xhr.responseType = 'arraybuffer';\n    }\n\n    if ('POST' == this.method) {\n      try {\n        if (this.isBinary) {\n          xhr.setRequestHeader('Content-type', 'application/octet-stream');\n        } else {\n          xhr.setRequestHeader('Content-type', 'text/plain;charset=UTF-8');\n        }\n      } catch (e) {}\n    }\n\n    // ie6 check\n    if ('withCredentials' in xhr) {\n      xhr.withCredentials = true;\n    }\n\n    if (this.hasXDR()) {\n      xhr.onload = function(){\n        self.onLoad();\n      };\n      xhr.onerror = function(){\n        self.onError(xhr.responseText);\n      };\n    } else {\n      xhr.onreadystatechange = function(){\n        if (4 != xhr.readyState) return;\n        if (200 == xhr.status || 1223 == xhr.status) {\n          self.onLoad();\n        } else {\n          // make sure the `error` event handler that's user-set\n          // does not throw in the same tick and gets caught here\n          setTimeout(function(){\n            self.onError(xhr.status);\n          }, 0);\n        }\n      };\n    }\n\n    debug('xhr data %s', this.data);\n    xhr.send(this.data);\n  } catch (e) {\n    // Need to defer since .create() is called directly fhrom the constructor\n    // and thus the 'error' event can only be only bound *after* this exception\n    // occurs.  Therefore, also, we cannot throw here at all.\n    setTimeout(function() {\n      self.onError(e);\n    }, 0);\n    return;\n  }\n\n  if (global.document) {\n    this.index = Request.requestsCount++;\n    Request.requests[this.index] = this;\n  }\n};\n\n/**\n * Called upon successful response.\n *\n * @api private\n */\n\nRequest.prototype.onSuccess = function(){\n  this.emit('success');\n  this.cleanup();\n};\n\n/**\n * Called if we have data.\n *\n * @api private\n */\n\nRequest.prototype.onData = function(data){\n  this.emit('data', data);\n  this.onSuccess();\n};\n\n/**\n * Called upon error.\n *\n * @api private\n */\n\nRequest.prototype.onError = function(err){\n  this.emit('error', err);\n  this.cleanup(true);\n};\n\n/**\n * Cleans up house.\n *\n * @api private\n */\n\nRequest.prototype.cleanup = function(fromError){\n  if ('undefined' == typeof this.xhr || null === this.xhr) {\n    return;\n  }\n  // xmlhttprequest\n  if (this.hasXDR()) {\n    this.xhr.onload = this.xhr.onerror = empty;\n  } else {\n    this.xhr.onreadystatechange = empty;\n  }\n\n  if (fromError) {\n    try {\n      this.xhr.abort();\n    } catch(e) {}\n  }\n\n  if (global.document) {\n    delete Request.requests[this.index];\n  }\n\n  this.xhr = null;\n};\n\n/**\n * Called upon load.\n *\n * @api private\n */\n\nRequest.prototype.onLoad = function(){\n  var data;\n  try {\n    var contentType;\n    try {\n      contentType = this.xhr.getResponseHeader('Content-Type').split(';')[0];\n    } catch (e) {}\n    if (contentType === 'application/octet-stream') {\n      data = this.xhr.response;\n    } else {\n      if (!this.supportsBinary) {\n        data = this.xhr.responseText;\n      } else {\n        try {\n          data = String.fromCharCode.apply(null, new Uint8Array(this.xhr.response));\n        } catch (e) {\n          var ui8Arr = new Uint8Array(this.xhr.response);\n          var dataArray = [];\n          for (var idx = 0, length = ui8Arr.length; idx < length; idx++) {\n            dataArray.push(ui8Arr[idx]);\n          }\n\n          data = String.fromCharCode.apply(null, dataArray);\n        }\n      }\n    }\n  } catch (e) {\n    this.onError(e);\n  }\n  if (null != data) {\n    this.onData(data);\n  }\n};\n\n/**\n * Check if it has XDomainRequest.\n *\n * @api private\n */\n\nRequest.prototype.hasXDR = function(){\n  return 'undefined' !== typeof global.XDomainRequest && !this.xs && this.enablesXDR;\n};\n\n/**\n * Aborts the request.\n *\n * @api public\n */\n\nRequest.prototype.abort = function(){\n  this.cleanup();\n};\n\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\n\nif (global.document) {\n  Request.requestsCount = 0;\n  Request.requests = {};\n  if (global.attachEvent) {\n    global.attachEvent('onunload', unloadHandler);\n  } else if (global.addEventListener) {\n    global.addEventListener('beforeunload', unloadHandler, false);\n  }\n}\n\nfunction unloadHandler() {\n  for (var i in Request.requests) {\n    if (Request.requests.hasOwnProperty(i)) {\n      Request.requests[i].abort();\n    }\n  }\n}\n","/**\n * Module dependencies.\n */\n\nvar Transport = require('../transport');\nvar parseqs = require('parseqs');\nvar parser = require('engine.io-parser');\nvar inherit = require('component-inherit');\nvar yeast = require('yeast');\nvar debug = require('debug')('engine.io-client:polling');\n\n/**\n * Module exports.\n */\n\nmodule.exports = Polling;\n\n/**\n * Is XHR2 supported?\n */\n\nvar hasXHR2 = (function() {\n  var XMLHttpRequest = require('xmlhttprequest-ssl');\n  var xhr = new XMLHttpRequest({ xdomain: false });\n  return null != xhr.responseType;\n})();\n\n/**\n * Polling interface.\n *\n * @param {Object} opts\n * @api private\n */\n\nfunction Polling(opts){\n  var forceBase64 = (opts && opts.forceBase64);\n  if (!hasXHR2 || forceBase64) {\n    this.supportsBinary = false;\n  }\n  Transport.call(this, opts);\n}\n\n/**\n * Inherits from Transport.\n */\n\ninherit(Polling, Transport);\n\n/**\n * Transport name.\n */\n\nPolling.prototype.name = 'polling';\n\n/**\n * Opens the socket (triggers polling). We write a PING message to determine\n * when the transport is open.\n *\n * @api private\n */\n\nPolling.prototype.doOpen = function(){\n  this.poll();\n};\n\n/**\n * Pauses polling.\n *\n * @param {Function} callback upon buffers are flushed and transport is paused\n * @api private\n */\n\nPolling.prototype.pause = function(onPause){\n  var pending = 0;\n  var self = this;\n\n  this.readyState = 'pausing';\n\n  function pause(){\n    debug('paused');\n    self.readyState = 'paused';\n    onPause();\n  }\n\n  if (this.polling || !this.writable) {\n    var total = 0;\n\n    if (this.polling) {\n      debug('we are currently polling - waiting to pause');\n      total++;\n      this.once('pollComplete', function(){\n        debug('pre-pause polling complete');\n        --total || pause();\n      });\n    }\n\n    if (!this.writable) {\n      debug('we are currently writing - waiting to pause');\n      total++;\n      this.once('drain', function(){\n        debug('pre-pause writing complete');\n        --total || pause();\n      });\n    }\n  } else {\n    pause();\n  }\n};\n\n/**\n * Starts polling cycle.\n *\n * @api public\n */\n\nPolling.prototype.poll = function(){\n  debug('polling');\n  this.polling = true;\n  this.doPoll();\n  this.emit('poll');\n};\n\n/**\n * Overloads onData to detect payloads.\n *\n * @api private\n */\n\nPolling.prototype.onData = function(data){\n  var self = this;\n  debug('polling got data %s', data);\n  var callback = function(packet, index, total) {\n    // if its the first message we consider the transport open\n    if ('opening' == self.readyState) {\n      self.onOpen();\n    }\n\n    // if its a close packet, we close the ongoing requests\n    if ('close' == packet.type) {\n      self.onClose();\n      return false;\n    }\n\n    // otherwise bypass onData and handle the message\n    self.onPacket(packet);\n  };\n\n  // decode payload\n  parser.decodePayload(data, this.socket.binaryType, callback);\n\n  // if an event did not trigger closing\n  if ('closed' != this.readyState) {\n    // if we got data we're not polling\n    this.polling = false;\n    this.emit('pollComplete');\n\n    if ('open' == this.readyState) {\n      this.poll();\n    } else {\n      debug('ignoring poll - transport state \"%s\"', this.readyState);\n    }\n  }\n};\n\n/**\n * For polling, send a close packet.\n *\n * @api private\n */\n\nPolling.prototype.doClose = function(){\n  var self = this;\n\n  function close(){\n    debug('writing close packet');\n    self.write([{ type: 'close' }]);\n  }\n\n  if ('open' == this.readyState) {\n    debug('transport open - closing');\n    close();\n  } else {\n    // in case we're trying to close while\n    // handshaking is in progress (GH-164)\n    debug('transport not open - deferring close');\n    this.once('open', close);\n  }\n};\n\n/**\n * Writes a packets payload.\n *\n * @param {Array} data packets\n * @param {Function} drain callback\n * @api private\n */\n\nPolling.prototype.write = function(packets){\n  var self = this;\n  this.writable = false;\n  var callbackfn = function() {\n    self.writable = true;\n    self.emit('drain');\n  };\n\n  var self = this;\n  parser.encodePayload(packets, this.supportsBinary, function(data) {\n    self.doWrite(data, callbackfn);\n  });\n};\n\n/**\n * Generates uri for connection.\n *\n * @api private\n */\n\nPolling.prototype.uri = function(){\n  var query = this.query || {};\n  var schema = this.secure ? 'https' : 'http';\n  var port = '';\n\n  // cache busting is forced\n  if (false !== this.timestampRequests) {\n    query[this.timestampParam] = yeast();\n  }\n\n  if (!this.supportsBinary && !query.sid) {\n    query.b64 = 1;\n  }\n\n  query = parseqs.encode(query);\n\n  // avoid port if default for schema\n  if (this.port && (('https' == schema && this.port != 443) ||\n     ('http' == schema && this.port != 80))) {\n    port = ':' + this.port;\n  }\n\n  // prepend ? to query\n  if (query.length) {\n    query = '?' + query;\n  }\n\n  var ipv6 = this.hostname.indexOf(':') !== -1;\n  return schema + '://' + (ipv6 ? '[' + this.hostname + ']' : this.hostname) + port + this.path + query;\n};\n","/**\n * Module dependencies.\n */\n\nvar Transport = require('../transport');\nvar parser = require('engine.io-parser');\nvar parseqs = require('parseqs');\nvar inherit = require('component-inherit');\nvar yeast = require('yeast');\nvar debug = require('debug')('engine.io-client:websocket');\nvar BrowserWebSocket = global.WebSocket || global.MozWebSocket;\n\n/**\n * Get either the `WebSocket` or `MozWebSocket` globals\n * in the browser or try to resolve WebSocket-compatible\n * interface exposed by `ws` for Node-like environment.\n */\n\nvar WebSocket = BrowserWebSocket;\nif (!WebSocket && typeof window === 'undefined') {\n  try {\n    WebSocket = require('ws');\n  } catch (e) { }\n}\n\n/**\n * Module exports.\n */\n\nmodule.exports = WS;\n\n/**\n * WebSocket transport constructor.\n *\n * @api {Object} connection options\n * @api public\n */\n\nfunction WS(opts){\n  var forceBase64 = (opts && opts.forceBase64);\n  if (forceBase64) {\n    this.supportsBinary = false;\n  }\n  this.perMessageDeflate = opts.perMessageDeflate;\n  Transport.call(this, opts);\n}\n\n/**\n * Inherits from Transport.\n */\n\ninherit(WS, Transport);\n\n/**\n * Transport name.\n *\n * @api public\n */\n\nWS.prototype.name = 'websocket';\n\n/*\n * WebSockets support binary\n */\n\nWS.prototype.supportsBinary = true;\n\n/**\n * Opens socket.\n *\n * @api private\n */\n\nWS.prototype.doOpen = function(){\n  if (!this.check()) {\n    // let probe timeout\n    return;\n  }\n\n  var self = this;\n  var uri = this.uri();\n  var protocols = void(0);\n  var opts = {\n    agent: this.agent,\n    perMessageDeflate: this.perMessageDeflate\n  };\n\n  // SSL options for Node.js client\n  opts.pfx = this.pfx;\n  opts.key = this.key;\n  opts.passphrase = this.passphrase;\n  opts.cert = this.cert;\n  opts.ca = this.ca;\n  opts.ciphers = this.ciphers;\n  opts.rejectUnauthorized = this.rejectUnauthorized;\n  if (this.extraHeaders) {\n    opts.headers = this.extraHeaders;\n  }\n\n  this.ws = BrowserWebSocket ? new WebSocket(uri) : new WebSocket(uri, protocols, opts);\n\n  if (this.ws.binaryType === undefined) {\n    this.supportsBinary = false;\n  }\n\n  if (this.ws.supports && this.ws.supports.binary) {\n    this.supportsBinary = true;\n    this.ws.binaryType = 'buffer';\n  } else {\n    this.ws.binaryType = 'arraybuffer';\n  }\n\n  this.addEventListeners();\n};\n\n/**\n * Adds event listeners to the socket\n *\n * @api private\n */\n\nWS.prototype.addEventListeners = function(){\n  var self = this;\n\n  this.ws.onopen = function(){\n    self.onOpen();\n  };\n  this.ws.onclose = function(){\n    self.onClose();\n  };\n  this.ws.onmessage = function(ev){\n    self.onData(ev.data);\n  };\n  this.ws.onerror = function(e){\n    self.onError('websocket error', e);\n  };\n};\n\n/**\n * Override `onData` to use a timer on iOS.\n * See: https://gist.github.com/mloughran/2052006\n *\n * @api private\n */\n\nif ('undefined' != typeof navigator\n  && /iPad|iPhone|iPod/i.test(navigator.userAgent)) {\n  WS.prototype.onData = function(data){\n    var self = this;\n    setTimeout(function(){\n      Transport.prototype.onData.call(self, data);\n    }, 0);\n  };\n}\n\n/**\n * Writes data to socket.\n *\n * @param {Array} array of packets.\n * @api private\n */\n\nWS.prototype.write = function(packets){\n  var self = this;\n  this.writable = false;\n\n  // encodePacket efficient as it uses WS framing\n  // no need for encodePayload\n  var total = packets.length;\n  for (var i = 0, l = total; i < l; i++) {\n    (function(packet) {\n      parser.encodePacket(packet, self.supportsBinary, function(data) {\n        if (!BrowserWebSocket) {\n          // always create a new object (GH-437)\n          var opts = {};\n          if (packet.options) {\n            opts.compress = packet.options.compress;\n          }\n\n          if (self.perMessageDeflate) {\n            var len = 'string' == typeof data ? global.Buffer.byteLength(data) : data.length;\n            if (len < self.perMessageDeflate.threshold) {\n              opts.compress = false;\n            }\n          }\n        }\n\n        //Sometimes the websocket has already been closed but the browser didn't\n        //have a chance of informing us about it yet, in that case send will\n        //throw an error\n        try {\n          if (BrowserWebSocket) {\n            // TypeError is thrown when passing the second argument on Safari\n            self.ws.send(data);\n          } else {\n            self.ws.send(data, opts);\n          }\n        } catch (e){\n          debug('websocket closed before onclose event');\n        }\n\n        --total || done();\n      });\n    })(packets[i]);\n  }\n\n  function done(){\n    self.emit('flush');\n\n    // fake drain\n    // defer to next tick to allow Socket to clear writeBuffer\n    setTimeout(function(){\n      self.writable = true;\n      self.emit('drain');\n    }, 0);\n  }\n};\n\n/**\n * Called upon close\n *\n * @api private\n */\n\nWS.prototype.onClose = function(){\n  Transport.prototype.onClose.call(this);\n};\n\n/**\n * Closes socket.\n *\n * @api private\n */\n\nWS.prototype.doClose = function(){\n  if (typeof this.ws !== 'undefined') {\n    this.ws.close();\n  }\n};\n\n/**\n * Generates uri for connection.\n *\n * @api private\n */\n\nWS.prototype.uri = function(){\n  var query = this.query || {};\n  var schema = this.secure ? 'wss' : 'ws';\n  var port = '';\n\n  // avoid port if default for schema\n  if (this.port && (('wss' == schema && this.port != 443)\n    || ('ws' == schema && this.port != 80))) {\n    port = ':' + this.port;\n  }\n\n  // append timestamp to URI\n  if (this.timestampRequests) {\n    query[this.timestampParam] = yeast();\n  }\n\n  // communicate binary support capabilities\n  if (!this.supportsBinary) {\n    query.b64 = 1;\n  }\n\n  query = parseqs.encode(query);\n\n  // prepend ? to query\n  if (query.length) {\n    query = '?' + query;\n  }\n\n  var ipv6 = this.hostname.indexOf(':') !== -1;\n  return schema + '://' + (ipv6 ? '[' + this.hostname + ']' : this.hostname) + port + this.path + query;\n};\n\n/**\n * Feature detection for WebSocket.\n *\n * @return {Boolean} whether this transport is available.\n * @api public\n */\n\nWS.prototype.check = function(){\n  return !!WebSocket && !('__initialize' in WebSocket && this.name === WS.prototype.name);\n};\n","// browser shim for xmlhttprequest module\nvar hasCORS = require('has-cors');\n\nmodule.exports = function(opts) {\n  var xdomain = opts.xdomain;\n\n  // scheme must be same when usign XDomainRequest\n  // http://blogs.msdn.com/b/ieinternals/archive/2010/05/13/xdomainrequest-restrictions-limitations-and-workarounds.aspx\n  var xscheme = opts.xscheme;\n\n  // XDomainRequest has a flow of not sending cookie, therefore it should be disabled as a default.\n  // https://github.com/Automattic/engine.io-client/pull/217\n  var enablesXDR = opts.enablesXDR;\n\n  // XMLHttpRequest can be disabled on IE\n  try {\n    if ('undefined' != typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n      return new XMLHttpRequest();\n    }\n  } catch (e) { }\n\n  // Use XDomainRequest for IE8 if enablesXDR is true\n  // because loading bar keeps flashing when using jsonp-polling\n  // https://github.com/yujiosaka/socke.io-ie8-loading-example\n  try {\n    if ('undefined' != typeof XDomainRequest && !xscheme && enablesXDR) {\n      return new XDomainRequest();\n    }\n  } catch (e) { }\n\n  if (!xdomain) {\n    try {\n      return new ActiveXObject('Microsoft.XMLHTTP');\n    } catch(e) { }\n  }\n}\n","/**\n * Module dependencies.\n */\n\nvar keys = require('./keys');\nvar hasBinary = require('has-binary');\nvar sliceBuffer = require('arraybuffer.slice');\nvar base64encoder = require('base64-arraybuffer');\nvar after = require('after');\nvar utf8 = require('utf8');\n\n/**\n * Check if we are running an android browser. That requires us to use\n * ArrayBuffer with polling transports...\n *\n * http://ghinda.net/jpeg-blob-ajax-android/\n */\n\nvar isAndroid = navigator.userAgent.match(/Android/i);\n\n/**\n * Check if we are running in PhantomJS.\n * Uploading a Blob with PhantomJS does not work correctly, as reported here:\n * https://github.com/ariya/phantomjs/issues/11395\n * @type boolean\n */\nvar isPhantomJS = /PhantomJS/i.test(navigator.userAgent);\n\n/**\n * When true, avoids using Blobs to encode payloads.\n * @type boolean\n */\nvar dontSendBlobs = isAndroid || isPhantomJS;\n\n/**\n * Current protocol version.\n */\n\nexports.protocol = 3;\n\n/**\n * Packet types.\n */\n\nvar packets = exports.packets = {\n    open:     0    // non-ws\n  , close:    1    // non-ws\n  , ping:     2\n  , pong:     3\n  , message:  4\n  , upgrade:  5\n  , noop:     6\n};\n\nvar packetslist = keys(packets);\n\n/**\n * Premade error packet.\n */\n\nvar err = { type: 'error', data: 'parser error' };\n\n/**\n * Create a blob api even for blob builder when vendor prefixes exist\n */\n\nvar Blob = require('blob');\n\n/**\n * Encodes a packet.\n *\n *     <packet type id> [ <data> ]\n *\n * Example:\n *\n *     5hello world\n *     3\n *     4\n *\n * Binary is encoded in an identical principle\n *\n * @api private\n */\n\nexports.encodePacket = function (packet, supportsBinary, utf8encode, callback) {\n  if ('function' == typeof supportsBinary) {\n    callback = supportsBinary;\n    supportsBinary = false;\n  }\n\n  if ('function' == typeof utf8encode) {\n    callback = utf8encode;\n    utf8encode = null;\n  }\n\n  var data = (packet.data === undefined)\n    ? undefined\n    : packet.data.buffer || packet.data;\n\n  if (global.ArrayBuffer && data instanceof ArrayBuffer) {\n    return encodeArrayBuffer(packet, supportsBinary, callback);\n  } else if (Blob && data instanceof global.Blob) {\n    return encodeBlob(packet, supportsBinary, callback);\n  }\n\n  // might be an object with { base64: true, data: dataAsBase64String }\n  if (data && data.base64) {\n    return encodeBase64Object(packet, callback);\n  }\n\n  // Sending data as a utf-8 string\n  var encoded = packets[packet.type];\n\n  // data fragment is optional\n  if (undefined !== packet.data) {\n    encoded += utf8encode ? utf8.encode(String(packet.data)) : String(packet.data);\n  }\n\n  return callback('' + encoded);\n\n};\n\nfunction encodeBase64Object(packet, callback) {\n  // packet data is an object { base64: true, data: dataAsBase64String }\n  var message = 'b' + exports.packets[packet.type] + packet.data.data;\n  return callback(message);\n}\n\n/**\n * Encode packet helpers for binary types\n */\n\nfunction encodeArrayBuffer(packet, supportsBinary, callback) {\n  if (!supportsBinary) {\n    return exports.encodeBase64Packet(packet, callback);\n  }\n\n  var data = packet.data;\n  var contentArray = new Uint8Array(data);\n  var resultBuffer = new Uint8Array(1 + data.byteLength);\n\n  resultBuffer[0] = packets[packet.type];\n  for (var i = 0; i < contentArray.length; i++) {\n    resultBuffer[i+1] = contentArray[i];\n  }\n\n  return callback(resultBuffer.buffer);\n}\n\nfunction encodeBlobAsArrayBuffer(packet, supportsBinary, callback) {\n  if (!supportsBinary) {\n    return exports.encodeBase64Packet(packet, callback);\n  }\n\n  var fr = new FileReader();\n  fr.onload = function() {\n    packet.data = fr.result;\n    exports.encodePacket(packet, supportsBinary, true, callback);\n  };\n  return fr.readAsArrayBuffer(packet.data);\n}\n\nfunction encodeBlob(packet, supportsBinary, callback) {\n  if (!supportsBinary) {\n    return exports.encodeBase64Packet(packet, callback);\n  }\n\n  if (dontSendBlobs) {\n    return encodeBlobAsArrayBuffer(packet, supportsBinary, callback);\n  }\n\n  var length = new Uint8Array(1);\n  length[0] = packets[packet.type];\n  var blob = new Blob([length.buffer, packet.data]);\n\n  return callback(blob);\n}\n\n/**\n * Encodes a packet with binary data in a base64 string\n *\n * @param {Object} packet, has `type` and `data`\n * @return {String} base64 encoded message\n */\n\nexports.encodeBase64Packet = function(packet, callback) {\n  var message = 'b' + exports.packets[packet.type];\n  if (Blob && packet.data instanceof global.Blob) {\n    var fr = new FileReader();\n    fr.onload = function() {\n      var b64 = fr.result.split(',')[1];\n      callback(message + b64);\n    };\n    return fr.readAsDataURL(packet.data);\n  }\n\n  var b64data;\n  try {\n    b64data = String.fromCharCode.apply(null, new Uint8Array(packet.data));\n  } catch (e) {\n    // iPhone Safari doesn't let you apply with typed arrays\n    var typed = new Uint8Array(packet.data);\n    var basic = new Array(typed.length);\n    for (var i = 0; i < typed.length; i++) {\n      basic[i] = typed[i];\n    }\n    b64data = String.fromCharCode.apply(null, basic);\n  }\n  message += global.btoa(b64data);\n  return callback(message);\n};\n\n/**\n * Decodes a packet. Changes format to Blob if requested.\n *\n * @return {Object} with `type` and `data` (if any)\n * @api private\n */\n\nexports.decodePacket = function (data, binaryType, utf8decode) {\n  // String data\n  if (typeof data == 'string' || data === undefined) {\n    if (data.charAt(0) == 'b') {\n      return exports.decodeBase64Packet(data.substr(1), binaryType);\n    }\n\n    if (utf8decode) {\n      try {\n        data = utf8.decode(data);\n      } catch (e) {\n        return err;\n      }\n    }\n    var type = data.charAt(0);\n\n    if (Number(type) != type || !packetslist[type]) {\n      return err;\n    }\n\n    if (data.length > 1) {\n      return { type: packetslist[type], data: data.substring(1) };\n    } else {\n      return { type: packetslist[type] };\n    }\n  }\n\n  var asArray = new Uint8Array(data);\n  var type = asArray[0];\n  var rest = sliceBuffer(data, 1);\n  if (Blob && binaryType === 'blob') {\n    rest = new Blob([rest]);\n  }\n  return { type: packetslist[type], data: rest };\n};\n\n/**\n * Decodes a packet encoded in a base64 string\n *\n * @param {String} base64 encoded message\n * @return {Object} with `type` and `data` (if any)\n */\n\nexports.decodeBase64Packet = function(msg, binaryType) {\n  var type = packetslist[msg.charAt(0)];\n  if (!global.ArrayBuffer) {\n    return { type: type, data: { base64: true, data: msg.substr(1) } };\n  }\n\n  var data = base64encoder.decode(msg.substr(1));\n\n  if (binaryType === 'blob' && Blob) {\n    data = new Blob([data]);\n  }\n\n  return { type: type, data: data };\n};\n\n/**\n * Encodes multiple messages (payload).\n *\n *     <length>:data\n *\n * Example:\n *\n *     11:hello world2:hi\n *\n * If any contents are binary, they will be encoded as base64 strings. Base64\n * encoded strings are marked with a b before the length specifier\n *\n * @param {Array} packets\n * @api private\n */\n\nexports.encodePayload = function (packets, supportsBinary, callback) {\n  if (typeof supportsBinary == 'function') {\n    callback = supportsBinary;\n    supportsBinary = null;\n  }\n\n  var isBinary = hasBinary(packets);\n\n  if (supportsBinary && isBinary) {\n    if (Blob && !dontSendBlobs) {\n      return exports.encodePayloadAsBlob(packets, callback);\n    }\n\n    return exports.encodePayloadAsArrayBuffer(packets, callback);\n  }\n\n  if (!packets.length) {\n    return callback('0:');\n  }\n\n  function setLengthHeader(message) {\n    return message.length + ':' + message;\n  }\n\n  function encodeOne(packet, doneCallback) {\n    exports.encodePacket(packet, !isBinary ? false : supportsBinary, true, function(message) {\n      doneCallback(null, setLengthHeader(message));\n    });\n  }\n\n  map(packets, encodeOne, function(err, results) {\n    return callback(results.join(''));\n  });\n};\n\n/**\n * Async array map using after\n */\n\nfunction map(ary, each, done) {\n  var result = new Array(ary.length);\n  var next = after(ary.length, done);\n\n  var eachWithIndex = function(i, el, cb) {\n    each(el, function(error, msg) {\n      result[i] = msg;\n      cb(error, result);\n    });\n  };\n\n  for (var i = 0; i < ary.length; i++) {\n    eachWithIndex(i, ary[i], next);\n  }\n}\n\n/*\n * Decodes data when a payload is maybe expected. Possible binary contents are\n * decoded from their base64 representation\n *\n * @param {String} data, callback method\n * @api public\n */\n\nexports.decodePayload = function (data, binaryType, callback) {\n  if (typeof data != 'string') {\n    return exports.decodePayloadAsBinary(data, binaryType, callback);\n  }\n\n  if (typeof binaryType === 'function') {\n    callback = binaryType;\n    binaryType = null;\n  }\n\n  var packet;\n  if (data == '') {\n    // parser error - ignoring payload\n    return callback(err, 0, 1);\n  }\n\n  var length = ''\n    , n, msg;\n\n  for (var i = 0, l = data.length; i < l; i++) {\n    var chr = data.charAt(i);\n\n    if (':' != chr) {\n      length += chr;\n    } else {\n      if ('' == length || (length != (n = Number(length)))) {\n        // parser error - ignoring payload\n        return callback(err, 0, 1);\n      }\n\n      msg = data.substr(i + 1, n);\n\n      if (length != msg.length) {\n        // parser error - ignoring payload\n        return callback(err, 0, 1);\n      }\n\n      if (msg.length) {\n        packet = exports.decodePacket(msg, binaryType, true);\n\n        if (err.type == packet.type && err.data == packet.data) {\n          // parser error in individual packet - ignoring payload\n          return callback(err, 0, 1);\n        }\n\n        var ret = callback(packet, i + n, l);\n        if (false === ret) return;\n      }\n\n      // advance cursor\n      i += n;\n      length = '';\n    }\n  }\n\n  if (length != '') {\n    // parser error - ignoring payload\n    return callback(err, 0, 1);\n  }\n\n};\n\n/**\n * Encodes multiple messages (payload) as binary.\n *\n * <1 = binary, 0 = string><number from 0-9><number from 0-9>[...]<number\n * 255><data>\n *\n * Example:\n * 1 3 255 1 2 3, if the binary contents are interpreted as 8 bit integers\n *\n * @param {Array} packets\n * @return {ArrayBuffer} encoded payload\n * @api private\n */\n\nexports.encodePayloadAsArrayBuffer = function(packets, callback) {\n  if (!packets.length) {\n    return callback(new ArrayBuffer(0));\n  }\n\n  function encodeOne(packet, doneCallback) {\n    exports.encodePacket(packet, true, true, function(data) {\n      return doneCallback(null, data);\n    });\n  }\n\n  map(packets, encodeOne, function(err, encodedPackets) {\n    var totalLength = encodedPackets.reduce(function(acc, p) {\n      var len;\n      if (typeof p === 'string'){\n        len = p.length;\n      } else {\n        len = p.byteLength;\n      }\n      return acc + len.toString().length + len + 2; // string/binary identifier + separator = 2\n    }, 0);\n\n    var resultArray = new Uint8Array(totalLength);\n\n    var bufferIndex = 0;\n    encodedPackets.forEach(function(p) {\n      var isString = typeof p === 'string';\n      var ab = p;\n      if (isString) {\n        var view = new Uint8Array(p.length);\n        for (var i = 0; i < p.length; i++) {\n          view[i] = p.charCodeAt(i);\n        }\n        ab = view.buffer;\n      }\n\n      if (isString) { // not true binary\n        resultArray[bufferIndex++] = 0;\n      } else { // true binary\n        resultArray[bufferIndex++] = 1;\n      }\n\n      var lenStr = ab.byteLength.toString();\n      for (var i = 0; i < lenStr.length; i++) {\n        resultArray[bufferIndex++] = parseInt(lenStr[i]);\n      }\n      resultArray[bufferIndex++] = 255;\n\n      var view = new Uint8Array(ab);\n      for (var i = 0; i < view.length; i++) {\n        resultArray[bufferIndex++] = view[i];\n      }\n    });\n\n    return callback(resultArray.buffer);\n  });\n};\n\n/**\n * Encode as Blob\n */\n\nexports.encodePayloadAsBlob = function(packets, callback) {\n  function encodeOne(packet, doneCallback) {\n    exports.encodePacket(packet, true, true, function(encoded) {\n      var binaryIdentifier = new Uint8Array(1);\n      binaryIdentifier[0] = 1;\n      if (typeof encoded === 'string') {\n        var view = new Uint8Array(encoded.length);\n        for (var i = 0; i < encoded.length; i++) {\n          view[i] = encoded.charCodeAt(i);\n        }\n        encoded = view.buffer;\n        binaryIdentifier[0] = 0;\n      }\n\n      var len = (encoded instanceof ArrayBuffer)\n        ? encoded.byteLength\n        : encoded.size;\n\n      var lenStr = len.toString();\n      var lengthAry = new Uint8Array(lenStr.length + 1);\n      for (var i = 0; i < lenStr.length; i++) {\n        lengthAry[i] = parseInt(lenStr[i]);\n      }\n      lengthAry[lenStr.length] = 255;\n\n      if (Blob) {\n        var blob = new Blob([binaryIdentifier.buffer, lengthAry.buffer, encoded]);\n        doneCallback(null, blob);\n      }\n    });\n  }\n\n  map(packets, encodeOne, function(err, results) {\n    return callback(new Blob(results));\n  });\n};\n\n/*\n * Decodes data when a payload is maybe expected. Strings are decoded by\n * interpreting each byte as a key code for entries marked to start with 0. See\n * description of encodePayloadAsBinary\n *\n * @param {ArrayBuffer} data, callback method\n * @api public\n */\n\nexports.decodePayloadAsBinary = function (data, binaryType, callback) {\n  if (typeof binaryType === 'function') {\n    callback = binaryType;\n    binaryType = null;\n  }\n\n  var bufferTail = data;\n  var buffers = [];\n\n  var numberTooLong = false;\n  while (bufferTail.byteLength > 0) {\n    var tailArray = new Uint8Array(bufferTail);\n    var isString = tailArray[0] === 0;\n    var msgLength = '';\n\n    for (var i = 1; ; i++) {\n      if (tailArray[i] == 255) break;\n\n      if (msgLength.length > 310) {\n        numberTooLong = true;\n        break;\n      }\n\n      msgLength += tailArray[i];\n    }\n\n    if(numberTooLong) return callback(err, 0, 1);\n\n    bufferTail = sliceBuffer(bufferTail, 2 + msgLength.length);\n    msgLength = parseInt(msgLength);\n\n    var msg = sliceBuffer(bufferTail, 0, msgLength);\n    if (isString) {\n      try {\n        msg = String.fromCharCode.apply(null, new Uint8Array(msg));\n      } catch (e) {\n        // iPhone Safari doesn't let you apply to typed arrays\n        var typed = new Uint8Array(msg);\n        msg = '';\n        for (var i = 0; i < typed.length; i++) {\n          msg += String.fromCharCode(typed[i]);\n        }\n      }\n    }\n\n    buffers.push(msg);\n    bufferTail = sliceBuffer(bufferTail, msgLength);\n  }\n\n  var total = buffers.length;\n  buffers.forEach(function(buffer, i) {\n    callback(exports.decodePacket(buffer, binaryType, true), i, total);\n  });\n};\n","\n/**\n * Gets the keys for an object.\n *\n * @return {Array} keys\n * @api private\n */\n\nmodule.exports = Object.keys || function keys (obj){\n  var arr = [];\n  var has = Object.prototype.hasOwnProperty;\n\n  for (var i in obj) {\n    if (has.call(obj, i)) {\n      arr.push(i);\n    }\n  }\n  return arr;\n};\n","\n/*\n * Module requirements.\n */\n\nvar isArray = require('isarray');\n\n/**\n * Module exports.\n */\n\nmodule.exports = hasBinary;\n\n/**\n * Checks for binary data.\n *\n * Right now only Buffer and ArrayBuffer are supported..\n *\n * @param {Object} anything\n * @api public\n */\n\nfunction hasBinary(data) {\n\n  function _hasBinary(obj) {\n    if (!obj) return false;\n\n    if ( (global.Buffer && global.Buffer.isBuffer(obj)) ||\n         (global.ArrayBuffer && obj instanceof ArrayBuffer) ||\n         (global.Blob && obj instanceof Blob) ||\n         (global.File && obj instanceof File)\n        ) {\n      return true;\n    }\n\n    if (isArray(obj)) {\n      for (var i = 0; i < obj.length; i++) {\n          if (_hasBinary(obj[i])) {\n              return true;\n          }\n      }\n    } else if (obj && 'object' == typeof obj) {\n      if (obj.toJSON) {\n        obj = obj.toJSON();\n      }\n\n      for (var key in obj) {\n        if (Object.prototype.hasOwnProperty.call(obj, key) && _hasBinary(obj[key])) {\n          return true;\n        }\n      }\n    }\n\n    return false;\n  }\n\n  return _hasBinary(data);\n}\n","module.exports = Array.isArray || function (arr) {\n  return Object.prototype.toString.call(arr) == '[object Array]';\n};\n","\n/*\n * Module requirements.\n */\n\nvar isArray = require('isarray');\n\n/**\n * Module exports.\n */\n\nmodule.exports = hasBinary;\n\n/**\n * Checks for binary data.\n *\n * Right now only Buffer and ArrayBuffer are supported..\n *\n * @param {Object} anything\n * @api public\n */\n\nfunction hasBinary(data) {\n\n  function _hasBinary(obj) {\n    if (!obj) return false;\n\n    if ( (global.Buffer && global.Buffer.isBuffer && global.Buffer.isBuffer(obj)) ||\n         (global.ArrayBuffer && obj instanceof ArrayBuffer) ||\n         (global.Blob && obj instanceof Blob) ||\n         (global.File && obj instanceof File)\n        ) {\n      return true;\n    }\n\n    if (isArray(obj)) {\n      for (var i = 0; i < obj.length; i++) {\n          if (_hasBinary(obj[i])) {\n              return true;\n          }\n      }\n    } else if (obj && 'object' == typeof obj) {\n      // see: https://github.com/Automattic/has-binary/pull/4\n      if (obj.toJSON && 'function' == typeof obj.toJSON) {\n        obj = obj.toJSON();\n      }\n\n      for (var key in obj) {\n        if (Object.prototype.hasOwnProperty.call(obj, key) && _hasBinary(obj[key])) {\n          return true;\n        }\n      }\n    }\n\n    return false;\n  }\n\n  return _hasBinary(data);\n}\n","\n/**\n * Module exports.\n *\n * Logic borrowed from Modernizr:\n *\n *   - https://github.com/Modernizr/Modernizr/blob/master/feature-detects/cors.js\n */\n\ntry {\n  module.exports = typeof XMLHttpRequest !== 'undefined' &&\n    'withCredentials' in new XMLHttpRequest();\n} catch (err) {\n  // if XMLHttp support is disabled in IE then it will throw\n  // when trying to create\n  module.exports = false;\n}\n","\nvar indexOf = [].indexOf;\n\nmodule.exports = function(arr, obj){\n  if (indexOf) return arr.indexOf(obj);\n  for (var i = 0; i < arr.length; ++i) {\n    if (arr[i] === obj) return i;\n  }\n  return -1;\n};","/**\n * Helpers.\n */\n\nvar s = 1000;\nvar m = s * 60;\nvar h = m * 60;\nvar d = h * 24;\nvar y = d * 365.25;\n\n/**\n * Parse or format the given `val`.\n *\n * Options:\n *\n *  - `long` verbose formatting [false]\n *\n * @param {String|Number} val\n * @param {Object} options\n * @return {String|Number}\n * @api public\n */\n\nmodule.exports = function(val, options){\n  options = options || {};\n  if ('string' == typeof val) return parse(val);\n  return options.long\n    ? long(val)\n    : short(val);\n};\n\n/**\n * Parse the given `str` and return milliseconds.\n *\n * @param {String} str\n * @return {Number}\n * @api private\n */\n\nfunction parse(str) {\n  str = '' + str;\n  if (str.length > 10000) return;\n  var match = /^((?:\\d+)?\\.?\\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec(str);\n  if (!match) return;\n  var n = parseFloat(match[1]);\n  var type = (match[2] || 'ms').toLowerCase();\n  switch (type) {\n    case 'years':\n    case 'year':\n    case 'yrs':\n    case 'yr':\n    case 'y':\n      return n * y;\n    case 'days':\n    case 'day':\n    case 'd':\n      return n * d;\n    case 'hours':\n    case 'hour':\n    case 'hrs':\n    case 'hr':\n    case 'h':\n      return n * h;\n    case 'minutes':\n    case 'minute':\n    case 'mins':\n    case 'min':\n    case 'm':\n      return n * m;\n    case 'seconds':\n    case 'second':\n    case 'secs':\n    case 'sec':\n    case 's':\n      return n * s;\n    case 'milliseconds':\n    case 'millisecond':\n    case 'msecs':\n    case 'msec':\n    case 'ms':\n      return n;\n  }\n}\n\n/**\n * Short format for `ms`.\n *\n * @param {Number} ms\n * @return {String}\n * @api private\n */\n\nfunction short(ms) {\n  if (ms >= d) return Math.round(ms / d) + 'd';\n  if (ms >= h) return Math.round(ms / h) + 'h';\n  if (ms >= m) return Math.round(ms / m) + 'm';\n  if (ms >= s) return Math.round(ms / s) + 's';\n  return ms + 'ms';\n}\n\n/**\n * Long format for `ms`.\n *\n * @param {Number} ms\n * @return {String}\n * @api private\n */\n\nfunction long(ms) {\n  return plural(ms, d, 'day')\n    || plural(ms, h, 'hour')\n    || plural(ms, m, 'minute')\n    || plural(ms, s, 'second')\n    || ms + ' ms';\n}\n\n/**\n * Pluralization helper.\n */\n\nfunction plural(ms, n, name) {\n  if (ms < n) return;\n  if (ms < n * 1.5) return Math.floor(ms / n) + ' ' + name;\n  return Math.ceil(ms / n) + ' ' + name + 's';\n}\n","/**\n * JSON parse.\n *\n * @see Based on jQuery#parseJSON (MIT) and JSON2\n * @api private\n */\n\nvar rvalidchars = /^[\\],:{}\\s]*$/;\nvar rvalidescape = /\\\\(?:[\"\\\\\\/bfnrt]|u[0-9a-fA-F]{4})/g;\nvar rvalidtokens = /\"[^\"\\\\\\n\\r]*\"|true|false|null|-?\\d+(?:\\.\\d*)?(?:[eE][+\\-]?\\d+)?/g;\nvar rvalidbraces = /(?:^|:|,)(?:\\s*\\[)+/g;\nvar rtrimLeft = /^\\s+/;\nvar rtrimRight = /\\s+$/;\n\nmodule.exports = function parsejson(data) {\n  if ('string' != typeof data || !data) {\n    return null;\n  }\n\n  data = data.replace(rtrimLeft, '').replace(rtrimRight, '');\n\n  // Attempt to parse using the native JSON parser first\n  if (global.JSON && JSON.parse) {\n    return JSON.parse(data);\n  }\n\n  if (rvalidchars.test(data.replace(rvalidescape, '@')\n      .replace(rvalidtokens, ']')\n      .replace(rvalidbraces, ''))) {\n    return (new Function('return ' + data))();\n  }\n};","/**\n * Compiles a querystring\n * Returns string representation of the object\n *\n * @param {Object}\n * @api private\n */\n\nexports.encode = function (obj) {\n  var str = '';\n\n  for (var i in obj) {\n    if (obj.hasOwnProperty(i)) {\n      if (str.length) str += '&';\n      str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\n    }\n  }\n\n  return str;\n};\n\n/**\n * Parses a simple querystring into an object\n *\n * @param {String} qs\n * @api private\n */\n\nexports.decode = function(qs){\n  var qry = {};\n  var pairs = qs.split('&');\n  for (var i = 0, l = pairs.length; i < l; i++) {\n    var pair = pairs[i].split('=');\n    qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\n  }\n  return qry;\n};\n","/**\n * Parses an URI\n *\n * @author Steven Levithan <stevenlevithan.com> (MIT license)\n * @api private\n */\n\nvar re = /^(?:(?![^:@]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\n\nvar parts = [\n    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\n];\n\nmodule.exports = function parseuri(str) {\n    var src = str,\n        b = str.indexOf('['),\n        e = str.indexOf(']');\n\n    if (b != -1 && e != -1) {\n        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\n    }\n\n    var m = re.exec(str || ''),\n        uri = {},\n        i = 14;\n\n    while (i--) {\n        uri[parts[i]] = m[i] || '';\n    }\n\n    if (b != -1 && e != -1) {\n        uri.source = src;\n        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\n        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\n        uri.ipv6uri = true;\n    }\n\n    return uri;\n};\n","\n/**\n * Module dependencies.\n */\n\nvar url = require('./url');\nvar parser = require('socket.io-parser');\nvar Manager = require('./manager');\nvar debug = require('debug')('socket.io-client');\n\n/**\n * Module exports.\n */\n\nmodule.exports = exports = lookup;\n\n/**\n * Managers cache.\n */\n\nvar cache = exports.managers = {};\n\n/**\n * Looks up an existing `Manager` for multiplexing.\n * If the user summons:\n *\n *   `io('http://localhost/a');`\n *   `io('http://localhost/b');`\n *\n * We reuse the existing instance based on same scheme/port/host,\n * and we initialize sockets for each namespace.\n *\n * @api public\n */\n\nfunction lookup(uri, opts) {\n  if (typeof uri == 'object') {\n    opts = uri;\n    uri = undefined;\n  }\n\n  opts = opts || {};\n\n  var parsed = url(uri);\n  var source = parsed.source;\n  var id = parsed.id;\n  var path = parsed.path;\n  var sameNamespace = cache[id] && path in cache[id].nsps;\n  var newConnection = opts.forceNew || opts['force new connection'] ||\n                      false === opts.multiplex || sameNamespace;\n\n  var io;\n\n  if (newConnection) {\n    debug('ignoring socket cache for %s', source);\n    io = Manager(source, opts);\n  } else {\n    if (!cache[id]) {\n      debug('new io instance for %s', source);\n      cache[id] = Manager(source, opts);\n    }\n    io = cache[id];\n  }\n\n  return io.socket(parsed.path);\n}\n\n/**\n * Protocol version.\n *\n * @api public\n */\n\nexports.protocol = parser.protocol;\n\n/**\n * `connect`.\n *\n * @param {String} uri\n * @api public\n */\n\nexports.connect = lookup;\n\n/**\n * Expose constructors for standalone build.\n *\n * @api public\n */\n\nexports.Manager = require('./manager');\nexports.Socket = require('./socket');\n","\n/**\n * Module dependencies.\n */\n\nvar eio = require('engine.io-client');\nvar Socket = require('./socket');\nvar Emitter = require('component-emitter');\nvar parser = require('socket.io-parser');\nvar on = require('./on');\nvar bind = require('component-bind');\nvar debug = require('debug')('socket.io-client:manager');\nvar indexOf = require('indexof');\nvar Backoff = require('backo2');\n\n/**\n * IE6+ hasOwnProperty\n */\n\nvar has = Object.prototype.hasOwnProperty;\n\n/**\n * Module exports\n */\n\nmodule.exports = Manager;\n\n/**\n * `Manager` constructor.\n *\n * @param {String} engine instance or engine uri/opts\n * @param {Object} options\n * @api public\n */\n\nfunction Manager(uri, opts){\n  if (!(this instanceof Manager)) return new Manager(uri, opts);\n  if (uri && ('object' == typeof uri)) {\n    opts = uri;\n    uri = undefined;\n  }\n  opts = opts || {};\n\n  opts.path = opts.path || '/socket.io';\n  this.nsps = {};\n  this.subs = [];\n  this.opts = opts;\n  this.reconnection(opts.reconnection !== false);\n  this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n  this.reconnectionDelay(opts.reconnectionDelay || 1000);\n  this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n  this.randomizationFactor(opts.randomizationFactor || 0.5);\n  this.backoff = new Backoff({\n    min: this.reconnectionDelay(),\n    max: this.reconnectionDelayMax(),\n    jitter: this.randomizationFactor()\n  });\n  this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n  this.readyState = 'closed';\n  this.uri = uri;\n  this.connecting = [];\n  this.lastPing = null;\n  this.encoding = false;\n  this.packetBuffer = [];\n  this.encoder = new parser.Encoder();\n  this.decoder = new parser.Decoder();\n  this.autoConnect = opts.autoConnect !== false;\n  if (this.autoConnect) this.open();\n}\n\n/**\n * Propagate given event to sockets and emit on `this`\n *\n * @api private\n */\n\nManager.prototype.emitAll = function() {\n  this.emit.apply(this, arguments);\n  for (var nsp in this.nsps) {\n    if (has.call(this.nsps, nsp)) {\n      this.nsps[nsp].emit.apply(this.nsps[nsp], arguments);\n    }\n  }\n};\n\n/**\n * Update `socket.id` of all sockets\n *\n * @api private\n */\n\nManager.prototype.updateSocketIds = function(){\n  for (var nsp in this.nsps) {\n    if (has.call(this.nsps, nsp)) {\n      this.nsps[nsp].id = this.engine.id;\n    }\n  }\n};\n\n/**\n * Mix in `Emitter`.\n */\n\nEmitter(Manager.prototype);\n\n/**\n * Sets the `reconnection` config.\n *\n * @param {Boolean} true/false if it should automatically reconnect\n * @return {Manager} self or value\n * @api public\n */\n\nManager.prototype.reconnection = function(v){\n  if (!arguments.length) return this._reconnection;\n  this._reconnection = !!v;\n  return this;\n};\n\n/**\n * Sets the reconnection attempts config.\n *\n * @param {Number} max reconnection attempts before giving up\n * @return {Manager} self or value\n * @api public\n */\n\nManager.prototype.reconnectionAttempts = function(v){\n  if (!arguments.length) return this._reconnectionAttempts;\n  this._reconnectionAttempts = v;\n  return this;\n};\n\n/**\n * Sets the delay between reconnections.\n *\n * @param {Number} delay\n * @return {Manager} self or value\n * @api public\n */\n\nManager.prototype.reconnectionDelay = function(v){\n  if (!arguments.length) return this._reconnectionDelay;\n  this._reconnectionDelay = v;\n  this.backoff && this.backoff.setMin(v);\n  return this;\n};\n\nManager.prototype.randomizationFactor = function(v){\n  if (!arguments.length) return this._randomizationFactor;\n  this._randomizationFactor = v;\n  this.backoff && this.backoff.setJitter(v);\n  return this;\n};\n\n/**\n * Sets the maximum delay between reconnections.\n *\n * @param {Number} delay\n * @return {Manager} self or value\n * @api public\n */\n\nManager.prototype.reconnectionDelayMax = function(v){\n  if (!arguments.length) return this._reconnectionDelayMax;\n  this._reconnectionDelayMax = v;\n  this.backoff && this.backoff.setMax(v);\n  return this;\n};\n\n/**\n * Sets the connection timeout. `false` to disable\n *\n * @return {Manager} self or value\n * @api public\n */\n\nManager.prototype.timeout = function(v){\n  if (!arguments.length) return this._timeout;\n  this._timeout = v;\n  return this;\n};\n\n/**\n * Starts trying to reconnect if reconnection is enabled and we have not\n * started reconnecting yet\n *\n * @api private\n */\n\nManager.prototype.maybeReconnectOnOpen = function() {\n  // Only try to reconnect if it's the first time we're connecting\n  if (!this.reconnecting && this._reconnection && this.backoff.attempts === 0) {\n    // keeps reconnection from firing twice for the same reconnection loop\n    this.reconnect();\n  }\n};\n\n\n/**\n * Sets the current transport `socket`.\n *\n * @param {Function} optional, callback\n * @return {Manager} self\n * @api public\n */\n\nManager.prototype.open =\nManager.prototype.connect = function(fn){\n  debug('readyState %s', this.readyState);\n  if (~this.readyState.indexOf('open')) return this;\n\n  debug('opening %s', this.uri);\n  this.engine = eio(this.uri, this.opts);\n  var socket = this.engine;\n  var self = this;\n  this.readyState = 'opening';\n  this.skipReconnect = false;\n\n  // emit `open`\n  var openSub = on(socket, 'open', function() {\n    self.onopen();\n    fn && fn();\n  });\n\n  // emit `connect_error`\n  var errorSub = on(socket, 'error', function(data){\n    debug('connect_error');\n    self.cleanup();\n    self.readyState = 'closed';\n    self.emitAll('connect_error', data);\n    if (fn) {\n      var err = new Error('Connection error');\n      err.data = data;\n      fn(err);\n    } else {\n      // Only do this if there is no fn to handle the error\n      self.maybeReconnectOnOpen();\n    }\n  });\n\n  // emit `connect_timeout`\n  if (false !== this._timeout) {\n    var timeout = this._timeout;\n    debug('connect attempt will timeout after %d', timeout);\n\n    // set timer\n    var timer = setTimeout(function(){\n      debug('connect attempt timed out after %d', timeout);\n      openSub.destroy();\n      socket.close();\n      socket.emit('error', 'timeout');\n      self.emitAll('connect_timeout', timeout);\n    }, timeout);\n\n    this.subs.push({\n      destroy: function(){\n        clearTimeout(timer);\n      }\n    });\n  }\n\n  this.subs.push(openSub);\n  this.subs.push(errorSub);\n\n  return this;\n};\n\n/**\n * Called upon transport open.\n *\n * @api private\n */\n\nManager.prototype.onopen = function(){\n  debug('open');\n\n  // clear old subs\n  this.cleanup();\n\n  // mark as open\n  this.readyState = 'open';\n  this.emit('open');\n\n  // add new subs\n  var socket = this.engine;\n  this.subs.push(on(socket, 'data', bind(this, 'ondata')));\n  this.subs.push(on(socket, 'ping', bind(this, 'onping')));\n  this.subs.push(on(socket, 'pong', bind(this, 'onpong')));\n  this.subs.push(on(socket, 'error', bind(this, 'onerror')));\n  this.subs.push(on(socket, 'close', bind(this, 'onclose')));\n  this.subs.push(on(this.decoder, 'decoded', bind(this, 'ondecoded')));\n};\n\n/**\n * Called upon a ping.\n *\n * @api private\n */\n\nManager.prototype.onping = function(){\n  this.lastPing = new Date;\n  this.emitAll('ping');\n};\n\n/**\n * Called upon a packet.\n *\n * @api private\n */\n\nManager.prototype.onpong = function(){\n  this.emitAll('pong', new Date - this.lastPing);\n};\n\n/**\n * Called with data.\n *\n * @api private\n */\n\nManager.prototype.ondata = function(data){\n  this.decoder.add(data);\n};\n\n/**\n * Called when parser fully decodes a packet.\n *\n * @api private\n */\n\nManager.prototype.ondecoded = function(packet) {\n  this.emit('packet', packet);\n};\n\n/**\n * Called upon socket error.\n *\n * @api private\n */\n\nManager.prototype.onerror = function(err){\n  debug('error', err);\n  this.emitAll('error', err);\n};\n\n/**\n * Creates a new socket for the given `nsp`.\n *\n * @return {Socket}\n * @api public\n */\n\nManager.prototype.socket = function(nsp){\n  var socket = this.nsps[nsp];\n  if (!socket) {\n    socket = new Socket(this, nsp);\n    this.nsps[nsp] = socket;\n    var self = this;\n    socket.on('connecting', onConnecting);\n    socket.on('connect', function(){\n      socket.id = self.engine.id;\n    });\n\n    if (this.autoConnect) {\n      // manually call here since connecting evnet is fired before listening\n      onConnecting();\n    }\n  }\n\n  function onConnecting() {\n    if (!~indexOf(self.connecting, socket)) {\n      self.connecting.push(socket);\n    }\n  }\n\n  return socket;\n};\n\n/**\n * Called upon a socket close.\n *\n * @param {Socket} socket\n */\n\nManager.prototype.destroy = function(socket){\n  var index = indexOf(this.connecting, socket);\n  if (~index) this.connecting.splice(index, 1);\n  if (this.connecting.length) return;\n\n  this.close();\n};\n\n/**\n * Writes a packet.\n *\n * @param {Object} packet\n * @api private\n */\n\nManager.prototype.packet = function(packet){\n  debug('writing packet %j', packet);\n  var self = this;\n\n  if (!self.encoding) {\n    // encode, then write to engine with result\n    self.encoding = true;\n    this.encoder.encode(packet, function(encodedPackets) {\n      for (var i = 0; i < encodedPackets.length; i++) {\n        self.engine.write(encodedPackets[i], packet.options);\n      }\n      self.encoding = false;\n      self.processPacketQueue();\n    });\n  } else { // add packet to the queue\n    self.packetBuffer.push(packet);\n  }\n};\n\n/**\n * If packet buffer is non-empty, begins encoding the\n * next packet in line.\n *\n * @api private\n */\n\nManager.prototype.processPacketQueue = function() {\n  if (this.packetBuffer.length > 0 && !this.encoding) {\n    var pack = this.packetBuffer.shift();\n    this.packet(pack);\n  }\n};\n\n/**\n * Clean up transport subscriptions and packet buffer.\n *\n * @api private\n */\n\nManager.prototype.cleanup = function(){\n  debug('cleanup');\n\n  var sub;\n  while (sub = this.subs.shift()) sub.destroy();\n\n  this.packetBuffer = [];\n  this.encoding = false;\n  this.lastPing = null;\n\n  this.decoder.destroy();\n};\n\n/**\n * Close the current socket.\n *\n * @api private\n */\n\nManager.prototype.close =\nManager.prototype.disconnect = function(){\n  debug('disconnect');\n  this.skipReconnect = true;\n  this.reconnecting = false;\n  if ('opening' == this.readyState) {\n    // `onclose` will not fire because\n    // an open event never happened\n    this.cleanup();\n  }\n  this.backoff.reset();\n  this.readyState = 'closed';\n  if (this.engine) this.engine.close();\n};\n\n/**\n * Called upon engine close.\n *\n * @api private\n */\n\nManager.prototype.onclose = function(reason){\n  debug('onclose');\n\n  this.cleanup();\n  this.backoff.reset();\n  this.readyState = 'closed';\n  this.emit('close', reason);\n\n  if (this._reconnection && !this.skipReconnect) {\n    this.reconnect();\n  }\n};\n\n/**\n * Attempt a reconnection.\n *\n * @api private\n */\n\nManager.prototype.reconnect = function(){\n  if (this.reconnecting || this.skipReconnect) return this;\n\n  var self = this;\n\n  if (this.backoff.attempts >= this._reconnectionAttempts) {\n    debug('reconnect failed');\n    this.backoff.reset();\n    this.emitAll('reconnect_failed');\n    this.reconnecting = false;\n  } else {\n    var delay = this.backoff.duration();\n    debug('will wait %dms before reconnect attempt', delay);\n\n    this.reconnecting = true;\n    var timer = setTimeout(function(){\n      if (self.skipReconnect) return;\n\n      debug('attempting reconnect');\n      self.emitAll('reconnect_attempt', self.backoff.attempts);\n      self.emitAll('reconnecting', self.backoff.attempts);\n\n      // check again for the case socket closed in above events\n      if (self.skipReconnect) return;\n\n      self.open(function(err){\n        if (err) {\n          debug('reconnect attempt error');\n          self.reconnecting = false;\n          self.reconnect();\n          self.emitAll('reconnect_error', err.data);\n        } else {\n          debug('reconnect success');\n          self.onreconnect();\n        }\n      });\n    }, delay);\n\n    this.subs.push({\n      destroy: function(){\n        clearTimeout(timer);\n      }\n    });\n  }\n};\n\n/**\n * Called upon successful reconnect.\n *\n * @api private\n */\n\nManager.prototype.onreconnect = function(){\n  var attempt = this.backoff.attempts;\n  this.reconnecting = false;\n  this.backoff.reset();\n  this.updateSocketIds();\n  this.emitAll('reconnect', attempt);\n};\n","\n/**\n * Module exports.\n */\n\nmodule.exports = on;\n\n/**\n * Helper for subscriptions.\n *\n * @param {Object|EventEmitter} obj with `Emitter` mixin or `EventEmitter`\n * @param {String} event name\n * @param {Function} callback\n * @api public\n */\n\nfunction on(obj, ev, fn) {\n  obj.on(ev, fn);\n  return {\n    destroy: function(){\n      obj.removeListener(ev, fn);\n    }\n  };\n}\n","\n/**\n * Module dependencies.\n */\n\nvar parser = require('socket.io-parser');\nvar Emitter = require('component-emitter');\nvar toArray = require('to-array');\nvar on = require('./on');\nvar bind = require('component-bind');\nvar debug = require('debug')('socket.io-client:socket');\nvar hasBin = require('has-binary');\n\n/**\n * Module exports.\n */\n\nmodule.exports = exports = Socket;\n\n/**\n * Internal events (blacklisted).\n * These events can't be emitted by the user.\n *\n * @api private\n */\n\nvar events = {\n  connect: 1,\n  connect_error: 1,\n  connect_timeout: 1,\n  connecting: 1,\n  disconnect: 1,\n  error: 1,\n  reconnect: 1,\n  reconnect_attempt: 1,\n  reconnect_failed: 1,\n  reconnect_error: 1,\n  reconnecting: 1,\n  ping: 1,\n  pong: 1\n};\n\n/**\n * Shortcut to `Emitter#emit`.\n */\n\nvar emit = Emitter.prototype.emit;\n\n/**\n * `Socket` constructor.\n *\n * @api public\n */\n\nfunction Socket(io, nsp){\n  this.io = io;\n  this.nsp = nsp;\n  this.json = this; // compat\n  this.ids = 0;\n  this.acks = {};\n  this.receiveBuffer = [];\n  this.sendBuffer = [];\n  this.connected = false;\n  this.disconnected = true;\n  if (this.io.autoConnect) this.open();\n}\n\n/**\n * Mix in `Emitter`.\n */\n\nEmitter(Socket.prototype);\n\n/**\n * Subscribe to open, close and packet events\n *\n * @api private\n */\n\nSocket.prototype.subEvents = function() {\n  if (this.subs) return;\n\n  var io = this.io;\n  this.subs = [\n    on(io, 'open', bind(this, 'onopen')),\n    on(io, 'packet', bind(this, 'onpacket')),\n    on(io, 'close', bind(this, 'onclose'))\n  ];\n};\n\n/**\n * \"Opens\" the socket.\n *\n * @api public\n */\n\nSocket.prototype.open =\nSocket.prototype.connect = function(){\n  if (this.connected) return this;\n\n  this.subEvents();\n  this.io.open(); // ensure open\n  if ('open' == this.io.readyState) this.onopen();\n  this.emit('connecting');\n  return this;\n};\n\n/**\n * Sends a `message` event.\n *\n * @return {Socket} self\n * @api public\n */\n\nSocket.prototype.send = function(){\n  var args = toArray(arguments);\n  args.unshift('message');\n  this.emit.apply(this, args);\n  return this;\n};\n\n/**\n * Override `emit`.\n * If the event is in `events`, it's emitted normally.\n *\n * @param {String} event name\n * @return {Socket} self\n * @api public\n */\n\nSocket.prototype.emit = function(ev){\n  if (events.hasOwnProperty(ev)) {\n    emit.apply(this, arguments);\n    return this;\n  }\n\n  var args = toArray(arguments);\n  var parserType = parser.EVENT; // default\n  if (hasBin(args)) { parserType = parser.BINARY_EVENT; } // binary\n  var packet = { type: parserType, data: args };\n\n  packet.options = {};\n  packet.options.compress = !this.flags || false !== this.flags.compress;\n\n  // event ack callback\n  if ('function' == typeof args[args.length - 1]) {\n    debug('emitting packet with ack id %d', this.ids);\n    this.acks[this.ids] = args.pop();\n    packet.id = this.ids++;\n  }\n\n  if (this.connected) {\n    this.packet(packet);\n  } else {\n    this.sendBuffer.push(packet);\n  }\n\n  delete this.flags;\n\n  return this;\n};\n\n/**\n * Sends a packet.\n *\n * @param {Object} packet\n * @api private\n */\n\nSocket.prototype.packet = function(packet){\n  packet.nsp = this.nsp;\n  this.io.packet(packet);\n};\n\n/**\n * Called upon engine `open`.\n *\n * @api private\n */\n\nSocket.prototype.onopen = function(){\n  debug('transport is open - connecting');\n\n  // write connect packet if necessary\n  if ('/' != this.nsp) {\n    this.packet({ type: parser.CONNECT });\n  }\n};\n\n/**\n * Called upon engine `close`.\n *\n * @param {String} reason\n * @api private\n */\n\nSocket.prototype.onclose = function(reason){\n  debug('close (%s)', reason);\n  this.connected = false;\n  this.disconnected = true;\n  delete this.id;\n  this.emit('disconnect', reason);\n};\n\n/**\n * Called with socket packet.\n *\n * @param {Object} packet\n * @api private\n */\n\nSocket.prototype.onpacket = function(packet){\n  if (packet.nsp != this.nsp) return;\n\n  switch (packet.type) {\n    case parser.CONNECT:\n      this.onconnect();\n      break;\n\n    case parser.EVENT:\n      this.onevent(packet);\n      break;\n\n    case parser.BINARY_EVENT:\n      this.onevent(packet);\n      break;\n\n    case parser.ACK:\n      this.onack(packet);\n      break;\n\n    case parser.BINARY_ACK:\n      this.onack(packet);\n      break;\n\n    case parser.DISCONNECT:\n      this.ondisconnect();\n      break;\n\n    case parser.ERROR:\n      this.emit('error', packet.data);\n      break;\n  }\n};\n\n/**\n * Called upon a server event.\n *\n * @param {Object} packet\n * @api private\n */\n\nSocket.prototype.onevent = function(packet){\n  var args = packet.data || [];\n  debug('emitting event %j', args);\n\n  if (null != packet.id) {\n    debug('attaching ack callback to event');\n    args.push(this.ack(packet.id));\n  }\n\n  if (this.connected) {\n    emit.apply(this, args);\n  } else {\n    this.receiveBuffer.push(args);\n  }\n};\n\n/**\n * Produces an ack callback to emit with an event.\n *\n * @api private\n */\n\nSocket.prototype.ack = function(id){\n  var self = this;\n  var sent = false;\n  return function(){\n    // prevent double callbacks\n    if (sent) return;\n    sent = true;\n    var args = toArray(arguments);\n    debug('sending ack %j', args);\n\n    var type = hasBin(args) ? parser.BINARY_ACK : parser.ACK;\n    self.packet({\n      type: type,\n      id: id,\n      data: args\n    });\n  };\n};\n\n/**\n * Called upon a server acknowlegement.\n *\n * @param {Object} packet\n * @api private\n */\n\nSocket.prototype.onack = function(packet){\n  var ack = this.acks[packet.id];\n  if ('function' == typeof ack) {\n    debug('calling ack %s with %j', packet.id, packet.data);\n    ack.apply(this, packet.data);\n    delete this.acks[packet.id];\n  } else {\n    debug('bad ack %s', packet.id);\n  }\n};\n\n/**\n * Called upon server connect.\n *\n * @api private\n */\n\nSocket.prototype.onconnect = function(){\n  this.connected = true;\n  this.disconnected = false;\n  this.emit('connect');\n  this.emitBuffered();\n};\n\n/**\n * Emit buffered events (received and emitted).\n *\n * @api private\n */\n\nSocket.prototype.emitBuffered = function(){\n  var i;\n  for (i = 0; i < this.receiveBuffer.length; i++) {\n    emit.apply(this, this.receiveBuffer[i]);\n  }\n  this.receiveBuffer = [];\n\n  for (i = 0; i < this.sendBuffer.length; i++) {\n    this.packet(this.sendBuffer[i]);\n  }\n  this.sendBuffer = [];\n};\n\n/**\n * Called upon server disconnect.\n *\n * @api private\n */\n\nSocket.prototype.ondisconnect = function(){\n  debug('server disconnect (%s)', this.nsp);\n  this.destroy();\n  this.onclose('io server disconnect');\n};\n\n/**\n * Called upon forced client/server side disconnections,\n * this method ensures the manager stops tracking us and\n * that reconnections don't get triggered for this.\n *\n * @api private.\n */\n\nSocket.prototype.destroy = function(){\n  if (this.subs) {\n    // clean subscriptions to avoid reconnections\n    for (var i = 0; i < this.subs.length; i++) {\n      this.subs[i].destroy();\n    }\n    this.subs = null;\n  }\n\n  this.io.destroy(this);\n};\n\n/**\n * Disconnects the socket manually.\n *\n * @return {Socket} self\n * @api public\n */\n\nSocket.prototype.close =\nSocket.prototype.disconnect = function(){\n  if (this.connected) {\n    debug('performing disconnect (%s)', this.nsp);\n    this.packet({ type: parser.DISCONNECT });\n  }\n\n  // remove socket from pool\n  this.destroy();\n\n  if (this.connected) {\n    // fire events\n    this.onclose('io client disconnect');\n  }\n  return this;\n};\n\n/**\n * Sets the compress flag.\n *\n * @param {Boolean} if `true`, compresses the sending data\n * @return {Socket} self\n * @api public\n */\n\nSocket.prototype.compress = function(compress){\n  this.flags = this.flags || {};\n  this.flags.compress = compress;\n  return this;\n};\n","\n/**\n * Module dependencies.\n */\n\nvar parseuri = require('parseuri');\nvar debug = require('debug')('socket.io-client:url');\n\n/**\n * Module exports.\n */\n\nmodule.exports = url;\n\n/**\n * URL parser.\n *\n * @param {String} url\n * @param {Object} An object meant to mimic window.location.\n *                 Defaults to window.location.\n * @api public\n */\n\nfunction url(uri, loc){\n  var obj = uri;\n\n  // default to window.location\n  var loc = loc || global.location;\n  if (null == uri) uri = loc.protocol + '//' + loc.host;\n\n  // relative path support\n  if ('string' == typeof uri) {\n    if ('/' == uri.charAt(0)) {\n      if ('/' == uri.charAt(1)) {\n        uri = loc.protocol + uri;\n      } else {\n        uri = loc.host + uri;\n      }\n    }\n\n    if (!/^(https?|wss?):\\/\\//.test(uri)) {\n      debug('protocol-less url %s', uri);\n      if ('undefined' != typeof loc) {\n        uri = loc.protocol + '//' + uri;\n      } else {\n        uri = 'https://' + uri;\n      }\n    }\n\n    // parse\n    debug('parse %s', uri);\n    obj = parseuri(uri);\n  }\n\n  // make sure we treat `localhost:80` and `localhost` equally\n  if (!obj.port) {\n    if (/^(http|ws)$/.test(obj.protocol)) {\n      obj.port = '80';\n    }\n    else if (/^(http|ws)s$/.test(obj.protocol)) {\n      obj.port = '443';\n    }\n  }\n\n  obj.path = obj.path || '/';\n\n  var ipv6 = obj.host.indexOf(':') !== -1;\n  var host = ipv6 ? '[' + obj.host + ']' : obj.host;\n\n  // define unique id\n  obj.id = obj.protocol + '://' + host + ':' + obj.port;\n  // define href\n  obj.href = obj.protocol + '://' + host + (loc && loc.port == obj.port ? '' : (':' + obj.port));\n\n  return obj;\n}\n","\n/**\n * Expose `Emitter`.\n */\n\nmodule.exports = Emitter;\n\n/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nfunction Emitter(obj) {\n  if (obj) return mixin(obj);\n};\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n  for (var key in Emitter.prototype) {\n    obj[key] = Emitter.prototype[key];\n  }\n  return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\n    .push(fn);\n  return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n  function on() {\n    this.off(event, on);\n    fn.apply(this, arguments);\n  }\n\n  on.fn = fn;\n  this.on(event, on);\n  return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n\n  // all\n  if (0 == arguments.length) {\n    this._callbacks = {};\n    return this;\n  }\n\n  // specific event\n  var callbacks = this._callbacks['$' + event];\n  if (!callbacks) return this;\n\n  // remove all handlers\n  if (1 == arguments.length) {\n    delete this._callbacks['$' + event];\n    return this;\n  }\n\n  // remove specific handler\n  var cb;\n  for (var i = 0; i < callbacks.length; i++) {\n    cb = callbacks[i];\n    if (cb === fn || cb.fn === fn) {\n      callbacks.splice(i, 1);\n      break;\n    }\n  }\n  return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n  this._callbacks = this._callbacks || {};\n  var args = [].slice.call(arguments, 1)\n    , callbacks = this._callbacks['$' + event];\n\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\n      callbacks[i].apply(this, args);\n    }\n  }\n\n  return this;\n};\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n  this._callbacks = this._callbacks || {};\n  return this._callbacks['$' + event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n  return !! this.listeners(event).length;\n};\n","/*global Blob,File*/\n\n/**\n * Module requirements\n */\n\nvar isArray = require('isarray');\nvar isBuf = require('./is-buffer');\n\n/**\n * Replaces every Buffer | ArrayBuffer in packet with a numbered placeholder.\n * Anything with blobs or files should be fed through removeBlobs before coming\n * here.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @api public\n */\n\nexports.deconstructPacket = function(packet){\n  var buffers = [];\n  var packetData = packet.data;\n\n  function _deconstructPacket(data) {\n    if (!data) return data;\n\n    if (isBuf(data)) {\n      var placeholder = { _placeholder: true, num: buffers.length };\n      buffers.push(data);\n      return placeholder;\n    } else if (isArray(data)) {\n      var newData = new Array(data.length);\n      for (var i = 0; i < data.length; i++) {\n        newData[i] = _deconstructPacket(data[i]);\n      }\n      return newData;\n    } else if ('object' == typeof data && !(data instanceof Date)) {\n      var newData = {};\n      for (var key in data) {\n        newData[key] = _deconstructPacket(data[key]);\n      }\n      return newData;\n    }\n    return data;\n  }\n\n  var pack = packet;\n  pack.data = _deconstructPacket(packetData);\n  pack.attachments = buffers.length; // number of binary 'attachments'\n  return {packet: pack, buffers: buffers};\n};\n\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @api public\n */\n\nexports.reconstructPacket = function(packet, buffers) {\n  var curPlaceHolder = 0;\n\n  function _reconstructPacket(data) {\n    if (data && data._placeholder) {\n      var buf = buffers[data.num]; // appropriate buffer (should be natural order anyway)\n      return buf;\n    } else if (isArray(data)) {\n      for (var i = 0; i < data.length; i++) {\n        data[i] = _reconstructPacket(data[i]);\n      }\n      return data;\n    } else if (data && 'object' == typeof data) {\n      for (var key in data) {\n        data[key] = _reconstructPacket(data[key]);\n      }\n      return data;\n    }\n    return data;\n  }\n\n  packet.data = _reconstructPacket(packet.data);\n  packet.attachments = undefined; // no longer useful\n  return packet;\n};\n\n/**\n * Asynchronously removes Blobs or Files from data via\n * FileReader's readAsArrayBuffer method. Used before encoding\n * data as msgpack. Calls callback with the blobless data.\n *\n * @param {Object} data\n * @param {Function} callback\n * @api private\n */\n\nexports.removeBlobs = function(data, callback) {\n  function _removeBlobs(obj, curKey, containingObject) {\n    if (!obj) return obj;\n\n    // convert any blob\n    if ((global.Blob && obj instanceof Blob) ||\n        (global.File && obj instanceof File)) {\n      pendingBlobs++;\n\n      // async filereader\n      var fileReader = new FileReader();\n      fileReader.onload = function() { // this.result == arraybuffer\n        if (containingObject) {\n          containingObject[curKey] = this.result;\n        }\n        else {\n          bloblessData = this.result;\n        }\n\n        // if nothing pending its callback time\n        if(! --pendingBlobs) {\n          callback(bloblessData);\n        }\n      };\n\n      fileReader.readAsArrayBuffer(obj); // blob -> arraybuffer\n    } else if (isArray(obj)) { // handle array\n      for (var i = 0; i < obj.length; i++) {\n        _removeBlobs(obj[i], i, obj);\n      }\n    } else if (obj && 'object' == typeof obj && !isBuf(obj)) { // and object\n      for (var key in obj) {\n        _removeBlobs(obj[key], key, obj);\n      }\n    }\n  }\n\n  var pendingBlobs = 0;\n  var bloblessData = data;\n  _removeBlobs(bloblessData);\n  if (!pendingBlobs) {\n    callback(bloblessData);\n  }\n};\n","\n/**\n * Module dependencies.\n */\n\nvar debug = require('debug')('socket.io-parser');\nvar json = require('json3');\nvar isArray = require('isarray');\nvar Emitter = require('component-emitter');\nvar binary = require('./binary');\nvar isBuf = require('./is-buffer');\n\n/**\n * Protocol version.\n *\n * @api public\n */\n\nexports.protocol = 4;\n\n/**\n * Packet types.\n *\n * @api public\n */\n\nexports.types = [\n  'CONNECT',\n  'DISCONNECT',\n  'EVENT',\n  'ACK',\n  'ERROR',\n  'BINARY_EVENT',\n  'BINARY_ACK'\n];\n\n/**\n * Packet type `connect`.\n *\n * @api public\n */\n\nexports.CONNECT = 0;\n\n/**\n * Packet type `disconnect`.\n *\n * @api public\n */\n\nexports.DISCONNECT = 1;\n\n/**\n * Packet type `event`.\n *\n * @api public\n */\n\nexports.EVENT = 2;\n\n/**\n * Packet type `ack`.\n *\n * @api public\n */\n\nexports.ACK = 3;\n\n/**\n * Packet type `error`.\n *\n * @api public\n */\n\nexports.ERROR = 4;\n\n/**\n * Packet type 'binary event'\n *\n * @api public\n */\n\nexports.BINARY_EVENT = 5;\n\n/**\n * Packet type `binary ack`. For acks with binary arguments.\n *\n * @api public\n */\n\nexports.BINARY_ACK = 6;\n\n/**\n * Encoder constructor.\n *\n * @api public\n */\n\nexports.Encoder = Encoder;\n\n/**\n * Decoder constructor.\n *\n * @api public\n */\n\nexports.Decoder = Decoder;\n\n/**\n * A socket.io Encoder instance\n *\n * @api public\n */\n\nfunction Encoder() {}\n\n/**\n * Encode a packet as a single string if non-binary, or as a\n * buffer sequence, depending on packet type.\n *\n * @param {Object} obj - packet object\n * @param {Function} callback - function to handle encodings (likely engine.write)\n * @return Calls callback with Array of encodings\n * @api public\n */\n\nEncoder.prototype.encode = function(obj, callback){\n  debug('encoding packet %j', obj);\n\n  if (exports.BINARY_EVENT == obj.type || exports.BINARY_ACK == obj.type) {\n    encodeAsBinary(obj, callback);\n  }\n  else {\n    var encoding = encodeAsString(obj);\n    callback([encoding]);\n  }\n};\n\n/**\n * Encode packet as string.\n *\n * @param {Object} packet\n * @return {String} encoded\n * @api private\n */\n\nfunction encodeAsString(obj) {\n  var str = '';\n  var nsp = false;\n\n  // first is type\n  str += obj.type;\n\n  // attachments if we have them\n  if (exports.BINARY_EVENT == obj.type || exports.BINARY_ACK == obj.type) {\n    str += obj.attachments;\n    str += '-';\n  }\n\n  // if we have a namespace other than `/`\n  // we append it followed by a comma `,`\n  if (obj.nsp && '/' != obj.nsp) {\n    nsp = true;\n    str += obj.nsp;\n  }\n\n  // immediately followed by the id\n  if (null != obj.id) {\n    if (nsp) {\n      str += ',';\n      nsp = false;\n    }\n    str += obj.id;\n  }\n\n  // json data\n  if (null != obj.data) {\n    if (nsp) str += ',';\n    str += json.stringify(obj.data);\n  }\n\n  debug('encoded %j as %s', obj, str);\n  return str;\n}\n\n/**\n * Encode packet as 'buffer sequence' by removing blobs, and\n * deconstructing packet into object with placeholders and\n * a list of buffers.\n *\n * @param {Object} packet\n * @return {Buffer} encoded\n * @api private\n */\n\nfunction encodeAsBinary(obj, callback) {\n\n  function writeEncoding(bloblessData) {\n    var deconstruction = binary.deconstructPacket(bloblessData);\n    var pack = encodeAsString(deconstruction.packet);\n    var buffers = deconstruction.buffers;\n\n    buffers.unshift(pack); // add packet info to beginning of data list\n    callback(buffers); // write all the buffers\n  }\n\n  binary.removeBlobs(obj, writeEncoding);\n}\n\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n * @api public\n */\n\nfunction Decoder() {\n  this.reconstructor = null;\n}\n\n/**\n * Mix in `Emitter` with Decoder.\n */\n\nEmitter(Decoder.prototype);\n\n/**\n * Decodes an ecoded packet string into packet JSON.\n *\n * @param {String} obj - encoded packet\n * @return {Object} packet\n * @api public\n */\n\nDecoder.prototype.add = function(obj) {\n  var packet;\n  if ('string' == typeof obj) {\n    packet = decodeString(obj);\n    if (exports.BINARY_EVENT == packet.type || exports.BINARY_ACK == packet.type) { // binary packet's json\n      this.reconstructor = new BinaryReconstructor(packet);\n\n      // no attachments, labeled binary but no binary data to follow\n      if (this.reconstructor.reconPack.attachments === 0) {\n        this.emit('decoded', packet);\n      }\n    } else { // non-binary full packet\n      this.emit('decoded', packet);\n    }\n  }\n  else if (isBuf(obj) || obj.base64) { // raw binary data\n    if (!this.reconstructor) {\n      throw new Error('got binary data when not reconstructing a packet');\n    } else {\n      packet = this.reconstructor.takeBinaryData(obj);\n      if (packet) { // received final buffer\n        this.reconstructor = null;\n        this.emit('decoded', packet);\n      }\n    }\n  }\n  else {\n    throw new Error('Unknown type: ' + obj);\n  }\n};\n\n/**\n * Decode a packet String (JSON data)\n *\n * @param {String} str\n * @return {Object} packet\n * @api private\n */\n\nfunction decodeString(str) {\n  var p = {};\n  var i = 0;\n\n  // look up type\n  p.type = Number(str.charAt(0));\n  if (null == exports.types[p.type]) return error();\n\n  // look up attachments if type binary\n  if (exports.BINARY_EVENT == p.type || exports.BINARY_ACK == p.type) {\n    var buf = '';\n    while (str.charAt(++i) != '-') {\n      buf += str.charAt(i);\n      if (i == str.length) break;\n    }\n    if (buf != Number(buf) || str.charAt(i) != '-') {\n      throw new Error('Illegal attachments');\n    }\n    p.attachments = Number(buf);\n  }\n\n  // look up namespace (if any)\n  if ('/' == str.charAt(i + 1)) {\n    p.nsp = '';\n    while (++i) {\n      var c = str.charAt(i);\n      if (',' == c) break;\n      p.nsp += c;\n      if (i == str.length) break;\n    }\n  } else {\n    p.nsp = '/';\n  }\n\n  // look up id\n  var next = str.charAt(i + 1);\n  if ('' !== next && Number(next) == next) {\n    p.id = '';\n    while (++i) {\n      var c = str.charAt(i);\n      if (null == c || Number(c) != c) {\n        --i;\n        break;\n      }\n      p.id += str.charAt(i);\n      if (i == str.length) break;\n    }\n    p.id = Number(p.id);\n  }\n\n  // look up json data\n  if (str.charAt(++i)) {\n    try {\n      p.data = json.parse(str.substr(i));\n    } catch(e){\n      return error();\n    }\n  }\n\n  debug('decoded %s as %j', str, p);\n  return p;\n}\n\n/**\n * Deallocates a parser's resources\n *\n * @api public\n */\n\nDecoder.prototype.destroy = function() {\n  if (this.reconstructor) {\n    this.reconstructor.finishedReconstruction();\n  }\n};\n\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n * @api private\n */\n\nfunction BinaryReconstructor(packet) {\n  this.reconPack = packet;\n  this.buffers = [];\n}\n\n/**\n * Method to be called when binary data received from connection\n * after a BINARY_EVENT packet.\n *\n * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n * @return {null | Object} returns null if more binary data is expected or\n *   a reconstructed packet object if all buffers have been received.\n * @api private\n */\n\nBinaryReconstructor.prototype.takeBinaryData = function(binData) {\n  this.buffers.push(binData);\n  if (this.buffers.length == this.reconPack.attachments) { // done with buffer list\n    var packet = binary.reconstructPacket(this.reconPack, this.buffers);\n    this.finishedReconstruction();\n    return packet;\n  }\n  return null;\n};\n\n/**\n * Cleans up binary packet reconstruction variables.\n *\n * @api private\n */\n\nBinaryReconstructor.prototype.finishedReconstruction = function() {\n  this.reconPack = null;\n  this.buffers = [];\n};\n\nfunction error(data){\n  return {\n    type: exports.ERROR,\n    data: 'parser error'\n  };\n}\n","\nmodule.exports = isBuf;\n\n/**\n * Returns true if obj is a buffer or an arraybuffer.\n *\n * @api private\n */\n\nfunction isBuf(obj) {\n  return (global.Buffer && global.Buffer.isBuffer(obj)) ||\n         (global.ArrayBuffer && obj instanceof ArrayBuffer);\n}\n","/*! JSON v3.3.2 | http://bestiejs.github.io/json3 | Copyright 2012-2014, Kit Cambridge | http://kit.mit-license.org */\n;(function () {\n  // Detect the `define` function exposed by asynchronous module loaders. The\n  // strict `define` check is necessary for compatibility with `r.js`.\n  var isLoader = typeof define === \"function\" && define.amd;\n\n  // A set of types used to distinguish objects from primitives.\n  var objectTypes = {\n    \"function\": true,\n    \"object\": true\n  };\n\n  // Detect the `exports` object exposed by CommonJS implementations.\n  var freeExports = objectTypes[typeof exports] && exports && !exports.nodeType && exports;\n\n  // Use the `global` object exposed by Node (including Browserify via\n  // `insert-module-globals`), Narwhal, and Ringo as the default context,\n  // and the `window` object in browsers. Rhino exports a `global` function\n  // instead.\n  var root = objectTypes[typeof window] && window || this,\n      freeGlobal = freeExports && objectTypes[typeof module] && module && !module.nodeType && typeof global == \"object\" && global;\n\n  if (freeGlobal && (freeGlobal[\"global\"] === freeGlobal || freeGlobal[\"window\"] === freeGlobal || freeGlobal[\"self\"] === freeGlobal)) {\n    root = freeGlobal;\n  }\n\n  // Public: Initializes JSON 3 using the given `context` object, attaching the\n  // `stringify` and `parse` functions to the specified `exports` object.\n  function runInContext(context, exports) {\n    context || (context = root[\"Object\"]());\n    exports || (exports = root[\"Object\"]());\n\n    // Native constructor aliases.\n    var Number = context[\"Number\"] || root[\"Number\"],\n        String = context[\"String\"] || root[\"String\"],\n        Object = context[\"Object\"] || root[\"Object\"],\n        Date = context[\"Date\"] || root[\"Date\"],\n        SyntaxError = context[\"SyntaxError\"] || root[\"SyntaxError\"],\n        TypeError = context[\"TypeError\"] || root[\"TypeError\"],\n        Math = context[\"Math\"] || root[\"Math\"],\n        nativeJSON = context[\"JSON\"] || root[\"JSON\"];\n\n    // Delegate to the native `stringify` and `parse` implementations.\n    if (typeof nativeJSON == \"object\" && nativeJSON) {\n      exports.stringify = nativeJSON.stringify;\n      exports.parse = nativeJSON.parse;\n    }\n\n    // Convenience aliases.\n    var objectProto = Object.prototype,\n        getClass = objectProto.toString,\n        isProperty, forEach, undef;\n\n    // Test the `Date#getUTC*` methods. Based on work by @Yaffle.\n    var isExtended = new Date(-3509827334573292);\n    try {\n      // The `getUTCFullYear`, `Month`, and `Date` methods return nonsensical\n      // results for certain dates in Opera >= 10.53.\n      isExtended = isExtended.getUTCFullYear() == -109252 && isExtended.getUTCMonth() === 0 && isExtended.getUTCDate() === 1 &&\n        // Safari < 2.0.2 stores the internal millisecond time value correctly,\n        // but clips the values returned by the date methods to the range of\n        // signed 32-bit integers ([-2 ** 31, 2 ** 31 - 1]).\n        isExtended.getUTCHours() == 10 && isExtended.getUTCMinutes() == 37 && isExtended.getUTCSeconds() == 6 && isExtended.getUTCMilliseconds() == 708;\n    } catch (exception) {}\n\n    // Internal: Determines whether the native `JSON.stringify` and `parse`\n    // implementations are spec-compliant. Based on work by Ken Snyder.\n    function has(name) {\n      if (has[name] !== undef) {\n        // Return cached feature test result.\n        return has[name];\n      }\n      var isSupported;\n      if (name == \"bug-string-char-index\") {\n        // IE <= 7 doesn't support accessing string characters using square\n        // bracket notation. IE 8 only supports this for primitives.\n        isSupported = \"a\"[0] != \"a\";\n      } else if (name == \"json\") {\n        // Indicates whether both `JSON.stringify` and `JSON.parse` are\n        // supported.\n        isSupported = has(\"json-stringify\") && has(\"json-parse\");\n      } else {\n        var value, serialized = '{\"a\":[1,true,false,null,\"\\\\u0000\\\\b\\\\n\\\\f\\\\r\\\\t\"]}';\n        // Test `JSON.stringify`.\n        if (name == \"json-stringify\") {\n          var stringify = exports.stringify, stringifySupported = typeof stringify == \"function\" && isExtended;\n          if (stringifySupported) {\n            // A test function object with a custom `toJSON` method.\n            (value = function () {\n              return 1;\n            }).toJSON = value;\n            try {\n              stringifySupported =\n                // Firefox 3.1b1 and b2 serialize string, number, and boolean\n                // primitives as object literals.\n                stringify(0) === \"0\" &&\n                // FF 3.1b1, b2, and JSON 2 serialize wrapped primitives as object\n                // literals.\n                stringify(new Number()) === \"0\" &&\n                stringify(new String()) == '\"\"' &&\n                // FF 3.1b1, 2 throw an error if the value is `null`, `undefined`, or\n                // does not define a canonical JSON representation (this applies to\n                // objects with `toJSON` properties as well, *unless* they are nested\n                // within an object or array).\n                stringify(getClass) === undef &&\n                // IE 8 serializes `undefined` as `\"undefined\"`. Safari <= 5.1.7 and\n                // FF 3.1b3 pass this test.\n                stringify(undef) === undef &&\n                // Safari <= 5.1.7 and FF 3.1b3 throw `Error`s and `TypeError`s,\n                // respectively, if the value is omitted entirely.\n                stringify() === undef &&\n                // FF 3.1b1, 2 throw an error if the given value is not a number,\n                // string, array, object, Boolean, or `null` literal. This applies to\n                // objects with custom `toJSON` methods as well, unless they are nested\n                // inside object or array literals. YUI 3.0.0b1 ignores custom `toJSON`\n                // methods entirely.\n                stringify(value) === \"1\" &&\n                stringify([value]) == \"[1]\" &&\n                // Prototype <= 1.6.1 serializes `[undefined]` as `\"[]\"` instead of\n                // `\"[null]\"`.\n                stringify([undef]) == \"[null]\" &&\n                // YUI 3.0.0b1 fails to serialize `null` literals.\n                stringify(null) == \"null\" &&\n                // FF 3.1b1, 2 halts serialization if an array contains a function:\n                // `[1, true, getClass, 1]` serializes as \"[1,true,],\". FF 3.1b3\n                // elides non-JSON values from objects and arrays, unless they\n                // define custom `toJSON` methods.\n                stringify([undef, getClass, null]) == \"[null,null,null]\" &&\n                // Simple serialization test. FF 3.1b1 uses Unicode escape sequences\n                // where character escape codes are expected (e.g., `\\b` => `\\u0008`).\n                stringify({ \"a\": [value, true, false, null, \"\\x00\\b\\n\\f\\r\\t\"] }) == serialized &&\n                // FF 3.1b1 and b2 ignore the `filter` and `width` arguments.\n                stringify(null, value) === \"1\" &&\n                stringify([1, 2], null, 1) == \"[\\n 1,\\n 2\\n]\" &&\n                // JSON 2, Prototype <= 1.7, and older WebKit builds incorrectly\n                // serialize extended years.\n                stringify(new Date(-8.64e15)) == '\"-271821-04-20T00:00:00.000Z\"' &&\n                // The milliseconds are optional in ES 5, but required in 5.1.\n                stringify(new Date(8.64e15)) == '\"+275760-09-13T00:00:00.000Z\"' &&\n                // Firefox <= 11.0 incorrectly serializes years prior to 0 as negative\n                // four-digit years instead of six-digit years. Credits: @Yaffle.\n                stringify(new Date(-621987552e5)) == '\"-000001-01-01T00:00:00.000Z\"' &&\n                // Safari <= 5.1.5 and Opera >= 10.53 incorrectly serialize millisecond\n                // values less than 1000. Credits: @Yaffle.\n                stringify(new Date(-1)) == '\"1969-12-31T23:59:59.999Z\"';\n            } catch (exception) {\n              stringifySupported = false;\n            }\n          }\n          isSupported = stringifySupported;\n        }\n        // Test `JSON.parse`.\n        if (name == \"json-parse\") {\n          var parse = exports.parse;\n          if (typeof parse == \"function\") {\n            try {\n              // FF 3.1b1, b2 will throw an exception if a bare literal is provided.\n              // Conforming implementations should also coerce the initial argument to\n              // a string prior to parsing.\n              if (parse(\"0\") === 0 && !parse(false)) {\n                // Simple parsing test.\n                value = parse(serialized);\n                var parseSupported = value[\"a\"].length == 5 && value[\"a\"][0] === 1;\n                if (parseSupported) {\n                  try {\n                    // Safari <= 5.1.2 and FF 3.1b1 allow unescaped tabs in strings.\n                    parseSupported = !parse('\"\\t\"');\n                  } catch (exception) {}\n                  if (parseSupported) {\n                    try {\n                      // FF 4.0 and 4.0.1 allow leading `+` signs and leading\n                      // decimal points. FF 4.0, 4.0.1, and IE 9-10 also allow\n                      // certain octal literals.\n                      parseSupported = parse(\"01\") !== 1;\n                    } catch (exception) {}\n                  }\n                  if (parseSupported) {\n                    try {\n                      // FF 4.0, 4.0.1, and Rhino 1.7R3-R4 allow trailing decimal\n                      // points. These environments, along with FF 3.1b1 and 2,\n                      // also allow trailing commas in JSON objects and arrays.\n                      parseSupported = parse(\"1.\") !== 1;\n                    } catch (exception) {}\n                  }\n                }\n              }\n            } catch (exception) {\n              parseSupported = false;\n            }\n          }\n          isSupported = parseSupported;\n        }\n      }\n      return has[name] = !!isSupported;\n    }\n\n    if (!has(\"json\")) {\n      // Common `[[Class]]` name aliases.\n      var functionClass = \"[object Function]\",\n          dateClass = \"[object Date]\",\n          numberClass = \"[object Number]\",\n          stringClass = \"[object String]\",\n          arrayClass = \"[object Array]\",\n          booleanClass = \"[object Boolean]\";\n\n      // Detect incomplete support for accessing string characters by index.\n      var charIndexBuggy = has(\"bug-string-char-index\");\n\n      // Define additional utility methods if the `Date` methods are buggy.\n      if (!isExtended) {\n        var floor = Math.floor;\n        // A mapping between the months of the year and the number of days between\n        // January 1st and the first of the respective month.\n        var Months = [0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334];\n        // Internal: Calculates the number of days between the Unix epoch and the\n        // first day of the given month.\n        var getDay = function (year, month) {\n          return Months[month] + 365 * (year - 1970) + floor((year - 1969 + (month = +(month > 1))) / 4) - floor((year - 1901 + month) / 100) + floor((year - 1601 + month) / 400);\n        };\n      }\n\n      // Internal: Determines if a property is a direct property of the given\n      // object. Delegates to the native `Object#hasOwnProperty` method.\n      if (!(isProperty = objectProto.hasOwnProperty)) {\n        isProperty = function (property) {\n          var members = {}, constructor;\n          if ((members.__proto__ = null, members.__proto__ = {\n            // The *proto* property cannot be set multiple times in recent\n            // versions of Firefox and SeaMonkey.\n            \"toString\": 1\n          }, members).toString != getClass) {\n            // Safari <= 2.0.3 doesn't implement `Object#hasOwnProperty`, but\n            // supports the mutable *proto* property.\n            isProperty = function (property) {\n              // Capture and break the object's prototype chain (see section 8.6.2\n              // of the ES 5.1 spec). The parenthesized expression prevents an\n              // unsafe transformation by the Closure Compiler.\n              var original = this.__proto__, result = property in (this.__proto__ = null, this);\n              // Restore the original prototype chain.\n              this.__proto__ = original;\n              return result;\n            };\n          } else {\n            // Capture a reference to the top-level `Object` constructor.\n            constructor = members.constructor;\n            // Use the `constructor` property to simulate `Object#hasOwnProperty` in\n            // other environments.\n            isProperty = function (property) {\n              var parent = (this.constructor || constructor).prototype;\n              return property in this && !(property in parent && this[property] === parent[property]);\n            };\n          }\n          members = null;\n          return isProperty.call(this, property);\n        };\n      }\n\n      // Internal: Normalizes the `for...in` iteration algorithm across\n      // environments. Each enumerated key is yielded to a `callback` function.\n      forEach = function (object, callback) {\n        var size = 0, Properties, members, property;\n\n        // Tests for bugs in the current environment's `for...in` algorithm. The\n        // `valueOf` property inherits the non-enumerable flag from\n        // `Object.prototype` in older versions of IE, Netscape, and Mozilla.\n        (Properties = function () {\n          this.valueOf = 0;\n        }).prototype.valueOf = 0;\n\n        // Iterate over a new instance of the `Properties` class.\n        members = new Properties();\n        for (property in members) {\n          // Ignore all properties inherited from `Object.prototype`.\n          if (isProperty.call(members, property)) {\n            size++;\n          }\n        }\n        Properties = members = null;\n\n        // Normalize the iteration algorithm.\n        if (!size) {\n          // A list of non-enumerable properties inherited from `Object.prototype`.\n          members = [\"valueOf\", \"toString\", \"toLocaleString\", \"propertyIsEnumerable\", \"isPrototypeOf\", \"hasOwnProperty\", \"constructor\"];\n          // IE <= 8, Mozilla 1.0, and Netscape 6.2 ignore shadowed non-enumerable\n          // properties.\n          forEach = function (object, callback) {\n            var isFunction = getClass.call(object) == functionClass, property, length;\n            var hasProperty = !isFunction && typeof object.constructor != \"function\" && objectTypes[typeof object.hasOwnProperty] && object.hasOwnProperty || isProperty;\n            for (property in object) {\n              // Gecko <= 1.0 enumerates the `prototype` property of functions under\n              // certain conditions; IE does not.\n              if (!(isFunction && property == \"prototype\") && hasProperty.call(object, property)) {\n                callback(property);\n              }\n            }\n            // Manually invoke the callback for each non-enumerable property.\n            for (length = members.length; property = members[--length]; hasProperty.call(object, property) && callback(property));\n          };\n        } else if (size == 2) {\n          // Safari <= 2.0.4 enumerates shadowed properties twice.\n          forEach = function (object, callback) {\n            // Create a set of iterated properties.\n            var members = {}, isFunction = getClass.call(object) == functionClass, property;\n            for (property in object) {\n              // Store each property name to prevent double enumeration. The\n              // `prototype` property of functions is not enumerated due to cross-\n              // environment inconsistencies.\n              if (!(isFunction && property == \"prototype\") && !isProperty.call(members, property) && (members[property] = 1) && isProperty.call(object, property)) {\n                callback(property);\n              }\n            }\n          };\n        } else {\n          // No bugs detected; use the standard `for...in` algorithm.\n          forEach = function (object, callback) {\n            var isFunction = getClass.call(object) == functionClass, property, isConstructor;\n            for (property in object) {\n              if (!(isFunction && property == \"prototype\") && isProperty.call(object, property) && !(isConstructor = property === \"constructor\")) {\n                callback(property);\n              }\n            }\n            // Manually invoke the callback for the `constructor` property due to\n            // cross-environment inconsistencies.\n            if (isConstructor || isProperty.call(object, (property = \"constructor\"))) {\n              callback(property);\n            }\n          };\n        }\n        return forEach(object, callback);\n      };\n\n      // Public: Serializes a JavaScript `value` as a JSON string. The optional\n      // `filter` argument may specify either a function that alters how object and\n      // array members are serialized, or an array of strings and numbers that\n      // indicates which properties should be serialized. The optional `width`\n      // argument may be either a string or number that specifies the indentation\n      // level of the output.\n      if (!has(\"json-stringify\")) {\n        // Internal: A map of control characters and their escaped equivalents.\n        var Escapes = {\n          92: \"\\\\\\\\\",\n          34: '\\\\\"',\n          8: \"\\\\b\",\n          12: \"\\\\f\",\n          10: \"\\\\n\",\n          13: \"\\\\r\",\n          9: \"\\\\t\"\n        };\n\n        // Internal: Converts `value` into a zero-padded string such that its\n        // length is at least equal to `width`. The `width` must be <= 6.\n        var leadingZeroes = \"000000\";\n        var toPaddedString = function (width, value) {\n          // The `|| 0` expression is necessary to work around a bug in\n          // Opera <= 7.54u2 where `0 == -0`, but `String(-0) !== \"0\"`.\n          return (leadingZeroes + (value || 0)).slice(-width);\n        };\n\n        // Internal: Double-quotes a string `value`, replacing all ASCII control\n        // characters (characters with code unit values between 0 and 31) with\n        // their escaped equivalents. This is an implementation of the\n        // `Quote(value)` operation defined in ES 5.1 section 15.12.3.\n        var unicodePrefix = \"\\\\u00\";\n        var quote = function (value) {\n          var result = '\"', index = 0, length = value.length, useCharIndex = !charIndexBuggy || length > 10;\n          var symbols = useCharIndex && (charIndexBuggy ? value.split(\"\") : value);\n          for (; index < length; index++) {\n            var charCode = value.charCodeAt(index);\n            // If the character is a control character, append its Unicode or\n            // shorthand escape sequence; otherwise, append the character as-is.\n            switch (charCode) {\n              case 8: case 9: case 10: case 12: case 13: case 34: case 92:\n                result += Escapes[charCode];\n                break;\n              default:\n                if (charCode < 32) {\n                  result += unicodePrefix + toPaddedString(2, charCode.toString(16));\n                  break;\n                }\n                result += useCharIndex ? symbols[index] : value.charAt(index);\n            }\n          }\n          return result + '\"';\n        };\n\n        // Internal: Recursively serializes an object. Implements the\n        // `Str(key, holder)`, `JO(value)`, and `JA(value)` operations.\n        var serialize = function (property, object, callback, properties, whitespace, indentation, stack) {\n          var value, className, year, month, date, time, hours, minutes, seconds, milliseconds, results, element, index, length, prefix, result;\n          try {\n            // Necessary for host object support.\n            value = object[property];\n          } catch (exception) {}\n          if (typeof value == \"object\" && value) {\n            className = getClass.call(value);\n            if (className == dateClass && !isProperty.call(value, \"toJSON\")) {\n              if (value > -1 / 0 && value < 1 / 0) {\n                // Dates are serialized according to the `Date#toJSON` method\n                // specified in ES 5.1 section 15.9.5.44. See section 15.9.1.15\n                // for the ISO 8601 date time string format.\n                if (getDay) {\n                  // Manually compute the year, month, date, hours, minutes,\n                  // seconds, and milliseconds if the `getUTC*` methods are\n                  // buggy. Adapted from @Yaffle's `date-shim` project.\n                  date = floor(value / 864e5);\n                  for (year = floor(date / 365.2425) + 1970 - 1; getDay(year + 1, 0) <= date; year++);\n                  for (month = floor((date - getDay(year, 0)) / 30.42); getDay(year, month + 1) <= date; month++);\n                  date = 1 + date - getDay(year, month);\n                  // The `time` value specifies the time within the day (see ES\n                  // 5.1 section 15.9.1.2). The formula `(A % B + B) % B` is used\n                  // to compute `A modulo B`, as the `%` operator does not\n                  // correspond to the `modulo` operation for negative numbers.\n                  time = (value % 864e5 + 864e5) % 864e5;\n                  // The hours, minutes, seconds, and milliseconds are obtained by\n                  // decomposing the time within the day. See section 15.9.1.10.\n                  hours = floor(time / 36e5) % 24;\n                  minutes = floor(time / 6e4) % 60;\n                  seconds = floor(time / 1e3) % 60;\n                  milliseconds = time % 1e3;\n                } else {\n                  year = value.getUTCFullYear();\n                  month = value.getUTCMonth();\n                  date = value.getUTCDate();\n                  hours = value.getUTCHours();\n                  minutes = value.getUTCMinutes();\n                  seconds = value.getUTCSeconds();\n                  milliseconds = value.getUTCMilliseconds();\n                }\n                // Serialize extended years correctly.\n                value = (year <= 0 || year >= 1e4 ? (year < 0 ? \"-\" : \"+\") + toPaddedString(6, year < 0 ? -year : year) : toPaddedString(4, year)) +\n                  \"-\" + toPaddedString(2, month + 1) + \"-\" + toPaddedString(2, date) +\n                  // Months, dates, hours, minutes, and seconds should have two\n                  // digits; milliseconds should have three.\n                  \"T\" + toPaddedString(2, hours) + \":\" + toPaddedString(2, minutes) + \":\" + toPaddedString(2, seconds) +\n                  // Milliseconds are optional in ES 5.0, but required in 5.1.\n                  \".\" + toPaddedString(3, milliseconds) + \"Z\";\n              } else {\n                value = null;\n              }\n            } else if (typeof value.toJSON == \"function\" && ((className != numberClass && className != stringClass && className != arrayClass) || isProperty.call(value, \"toJSON\"))) {\n              // Prototype <= 1.6.1 adds non-standard `toJSON` methods to the\n              // `Number`, `String`, `Date`, and `Array` prototypes. JSON 3\n              // ignores all `toJSON` methods on these objects unless they are\n              // defined directly on an instance.\n              value = value.toJSON(property);\n            }\n          }\n          if (callback) {\n            // If a replacement function was provided, call it to obtain the value\n            // for serialization.\n            value = callback.call(object, property, value);\n          }\n          if (value === null) {\n            return \"null\";\n          }\n          className = getClass.call(value);\n          if (className == booleanClass) {\n            // Booleans are represented literally.\n            return \"\" + value;\n          } else if (className == numberClass) {\n            // JSON numbers must be finite. `Infinity` and `NaN` are serialized as\n            // `\"null\"`.\n            return value > -1 / 0 && value < 1 / 0 ? \"\" + value : \"null\";\n          } else if (className == stringClass) {\n            // Strings are double-quoted and escaped.\n            return quote(\"\" + value);\n          }\n          // Recursively serialize objects and arrays.\n          if (typeof value == \"object\") {\n            // Check for cyclic structures. This is a linear search; performance\n            // is inversely proportional to the number of unique nested objects.\n            for (length = stack.length; length--;) {\n              if (stack[length] === value) {\n                // Cyclic structures cannot be serialized by `JSON.stringify`.\n                throw TypeError();\n              }\n            }\n            // Add the object to the stack of traversed objects.\n            stack.push(value);\n            results = [];\n            // Save the current indentation level and indent one additional level.\n            prefix = indentation;\n            indentation += whitespace;\n            if (className == arrayClass) {\n              // Recursively serialize array elements.\n              for (index = 0, length = value.length; index < length; index++) {\n                element = serialize(index, value, callback, properties, whitespace, indentation, stack);\n                results.push(element === undef ? \"null\" : element);\n              }\n              result = results.length ? (whitespace ? \"[\\n\" + indentation + results.join(\",\\n\" + indentation) + \"\\n\" + prefix + \"]\" : (\"[\" + results.join(\",\") + \"]\")) : \"[]\";\n            } else {\n              // Recursively serialize object members. Members are selected from\n              // either a user-specified list of property names, or the object\n              // itself.\n              forEach(properties || value, function (property) {\n                var element = serialize(property, value, callback, properties, whitespace, indentation, stack);\n                if (element !== undef) {\n                  // According to ES 5.1 section 15.12.3: \"If `gap` {whitespace}\n                  // is not the empty string, let `member` {quote(property) + \":\"}\n                  // be the concatenation of `member` and the `space` character.\"\n                  // The \"`space` character\" refers to the literal space\n                  // character, not the `space` {width} argument provided to\n                  // `JSON.stringify`.\n                  results.push(quote(property) + \":\" + (whitespace ? \" \" : \"\") + element);\n                }\n              });\n              result = results.length ? (whitespace ? \"{\\n\" + indentation + results.join(\",\\n\" + indentation) + \"\\n\" + prefix + \"}\" : (\"{\" + results.join(\",\") + \"}\")) : \"{}\";\n            }\n            // Remove the object from the traversed object stack.\n            stack.pop();\n            return result;\n          }\n        };\n\n        // Public: `JSON.stringify`. See ES 5.1 section 15.12.3.\n        exports.stringify = function (source, filter, width) {\n          var whitespace, callback, properties, className;\n          if (objectTypes[typeof filter] && filter) {\n            if ((className = getClass.call(filter)) == functionClass) {\n              callback = filter;\n            } else if (className == arrayClass) {\n              // Convert the property names array into a makeshift set.\n              properties = {};\n              for (var index = 0, length = filter.length, value; index < length; value = filter[index++], ((className = getClass.call(value)), className == stringClass || className == numberClass) && (properties[value] = 1));\n            }\n          }\n          if (width) {\n            if ((className = getClass.call(width)) == numberClass) {\n              // Convert the `width` to an integer and create a string containing\n              // `width` number of space characters.\n              if ((width -= width % 1) > 0) {\n                for (whitespace = \"\", width > 10 && (width = 10); whitespace.length < width; whitespace += \" \");\n              }\n            } else if (className == stringClass) {\n              whitespace = width.length <= 10 ? width : width.slice(0, 10);\n            }\n          }\n          // Opera <= 7.54u2 discards the values associated with empty string keys\n          // (`\"\"`) only if they are used directly within an object member list\n          // (e.g., `!(\"\" in { \"\": 1})`).\n          return serialize(\"\", (value = {}, value[\"\"] = source, value), callback, properties, whitespace, \"\", []);\n        };\n      }\n\n      // Public: Parses a JSON source string.\n      if (!has(\"json-parse\")) {\n        var fromCharCode = String.fromCharCode;\n\n        // Internal: A map of escaped control characters and their unescaped\n        // equivalents.\n        var Unescapes = {\n          92: \"\\\\\",\n          34: '\"',\n          47: \"/\",\n          98: \"\\b\",\n          116: \"\\t\",\n          110: \"\\n\",\n          102: \"\\f\",\n          114: \"\\r\"\n        };\n\n        // Internal: Stores the parser state.\n        var Index, Source;\n\n        // Internal: Resets the parser state and throws a `SyntaxError`.\n        var abort = function () {\n          Index = Source = null;\n          throw SyntaxError();\n        };\n\n        // Internal: Returns the next token, or `\"$\"` if the parser has reached\n        // the end of the source string. A token may be a string, number, `null`\n        // literal, or Boolean literal.\n        var lex = function () {\n          var source = Source, length = source.length, value, begin, position, isSigned, charCode;\n          while (Index < length) {\n            charCode = source.charCodeAt(Index);\n            switch (charCode) {\n              case 9: case 10: case 13: case 32:\n                // Skip whitespace tokens, including tabs, carriage returns, line\n                // feeds, and space characters.\n                Index++;\n                break;\n              case 123: case 125: case 91: case 93: case 58: case 44:\n                // Parse a punctuator token (`{`, `}`, `[`, `]`, `:`, or `,`) at\n                // the current position.\n                value = charIndexBuggy ? source.charAt(Index) : source[Index];\n                Index++;\n                return value;\n              case 34:\n                // `\"` delimits a JSON string; advance to the next character and\n                // begin parsing the string. String tokens are prefixed with the\n                // sentinel `@` character to distinguish them from punctuators and\n                // end-of-string tokens.\n                for (value = \"@\", Index++; Index < length;) {\n                  charCode = source.charCodeAt(Index);\n                  if (charCode < 32) {\n                    // Unescaped ASCII control characters (those with a code unit\n                    // less than the space character) are not permitted.\n                    abort();\n                  } else if (charCode == 92) {\n                    // A reverse solidus (`\\`) marks the beginning of an escaped\n                    // control character (including `\"`, `\\`, and `/`) or Unicode\n                    // escape sequence.\n                    charCode = source.charCodeAt(++Index);\n                    switch (charCode) {\n                      case 92: case 34: case 47: case 98: case 116: case 110: case 102: case 114:\n                        // Revive escaped control characters.\n                        value += Unescapes[charCode];\n                        Index++;\n                        break;\n                      case 117:\n                        // `\\u` marks the beginning of a Unicode escape sequence.\n                        // Advance to the first character and validate the\n                        // four-digit code point.\n                        begin = ++Index;\n                        for (position = Index + 4; Index < position; Index++) {\n                          charCode = source.charCodeAt(Index);\n                          // A valid sequence comprises four hexdigits (case-\n                          // insensitive) that form a single hexadecimal value.\n                          if (!(charCode >= 48 && charCode <= 57 || charCode >= 97 && charCode <= 102 || charCode >= 65 && charCode <= 70)) {\n                            // Invalid Unicode escape sequence.\n                            abort();\n                          }\n                        }\n                        // Revive the escaped character.\n                        value += fromCharCode(\"0x\" + source.slice(begin, Index));\n                        break;\n                      default:\n                        // Invalid escape sequence.\n                        abort();\n                    }\n                  } else {\n                    if (charCode == 34) {\n                      // An unescaped double-quote character marks the end of the\n                      // string.\n                      break;\n                    }\n                    charCode = source.charCodeAt(Index);\n                    begin = Index;\n                    // Optimize for the common case where a string is valid.\n                    while (charCode >= 32 && charCode != 92 && charCode != 34) {\n                      charCode = source.charCodeAt(++Index);\n                    }\n                    // Append the string as-is.\n                    value += source.slice(begin, Index);\n                  }\n                }\n                if (source.charCodeAt(Index) == 34) {\n                  // Advance to the next character and return the revived string.\n                  Index++;\n                  return value;\n                }\n                // Unterminated string.\n                abort();\n              default:\n                // Parse numbers and literals.\n                begin = Index;\n                // Advance past the negative sign, if one is specified.\n                if (charCode == 45) {\n                  isSigned = true;\n                  charCode = source.charCodeAt(++Index);\n                }\n                // Parse an integer or floating-point value.\n                if (charCode >= 48 && charCode <= 57) {\n                  // Leading zeroes are interpreted as octal literals.\n                  if (charCode == 48 && ((charCode = source.charCodeAt(Index + 1)), charCode >= 48 && charCode <= 57)) {\n                    // Illegal octal literal.\n                    abort();\n                  }\n                  isSigned = false;\n                  // Parse the integer component.\n                  for (; Index < length && ((charCode = source.charCodeAt(Index)), charCode >= 48 && charCode <= 57); Index++);\n                  // Floats cannot contain a leading decimal point; however, this\n                  // case is already accounted for by the parser.\n                  if (source.charCodeAt(Index) == 46) {\n                    position = ++Index;\n                    // Parse the decimal component.\n                    for (; position < length && ((charCode = source.charCodeAt(position)), charCode >= 48 && charCode <= 57); position++);\n                    if (position == Index) {\n                      // Illegal trailing decimal.\n                      abort();\n                    }\n                    Index = position;\n                  }\n                  // Parse exponents. The `e` denoting the exponent is\n                  // case-insensitive.\n                  charCode = source.charCodeAt(Index);\n                  if (charCode == 101 || charCode == 69) {\n                    charCode = source.charCodeAt(++Index);\n                    // Skip past the sign following the exponent, if one is\n                    // specified.\n                    if (charCode == 43 || charCode == 45) {\n                      Index++;\n                    }\n                    // Parse the exponential component.\n                    for (position = Index; position < length && ((charCode = source.charCodeAt(position)), charCode >= 48 && charCode <= 57); position++);\n                    if (position == Index) {\n                      // Illegal empty exponent.\n                      abort();\n                    }\n                    Index = position;\n                  }\n                  // Coerce the parsed value to a JavaScript number.\n                  return +source.slice(begin, Index);\n                }\n                // A negative sign may only precede numbers.\n                if (isSigned) {\n                  abort();\n                }\n                // `true`, `false`, and `null` literals.\n                if (source.slice(Index, Index + 4) == \"true\") {\n                  Index += 4;\n                  return true;\n                } else if (source.slice(Index, Index + 5) == \"false\") {\n                  Index += 5;\n                  return false;\n                } else if (source.slice(Index, Index + 4) == \"null\") {\n                  Index += 4;\n                  return null;\n                }\n                // Unrecognized token.\n                abort();\n            }\n          }\n          // Return the sentinel `$` character if the parser has reached the end\n          // of the source string.\n          return \"$\";\n        };\n\n        // Internal: Parses a JSON `value` token.\n        var get = function (value) {\n          var results, hasMembers;\n          if (value == \"$\") {\n            // Unexpected end of input.\n            abort();\n          }\n          if (typeof value == \"string\") {\n            if ((charIndexBuggy ? value.charAt(0) : value[0]) == \"@\") {\n              // Remove the sentinel `@` character.\n              return value.slice(1);\n            }\n            // Parse object and array literals.\n            if (value == \"[\") {\n              // Parses a JSON array, returning a new JavaScript array.\n              results = [];\n              for (;; hasMembers || (hasMembers = true)) {\n                value = lex();\n                // A closing square bracket marks the end of the array literal.\n                if (value == \"]\") {\n                  break;\n                }\n                // If the array literal contains elements, the current token\n                // should be a comma separating the previous element from the\n                // next.\n                if (hasMembers) {\n                  if (value == \",\") {\n                    value = lex();\n                    if (value == \"]\") {\n                      // Unexpected trailing `,` in array literal.\n                      abort();\n                    }\n                  } else {\n                    // A `,` must separate each array element.\n                    abort();\n                  }\n                }\n                // Elisions and leading commas are not permitted.\n                if (value == \",\") {\n                  abort();\n                }\n                results.push(get(value));\n              }\n              return results;\n            } else if (value == \"{\") {\n              // Parses a JSON object, returning a new JavaScript object.\n              results = {};\n              for (;; hasMembers || (hasMembers = true)) {\n                value = lex();\n                // A closing curly brace marks the end of the object literal.\n                if (value == \"}\") {\n                  break;\n                }\n                // If the object literal contains members, the current token\n                // should be a comma separator.\n                if (hasMembers) {\n                  if (value == \",\") {\n                    value = lex();\n                    if (value == \"}\") {\n                      // Unexpected trailing `,` in object literal.\n                      abort();\n                    }\n                  } else {\n                    // A `,` must separate each object member.\n                    abort();\n                  }\n                }\n                // Leading commas are not permitted, object property names must be\n                // double-quoted strings, and a `:` must separate each property\n                // name and value.\n                if (value == \",\" || typeof value != \"string\" || (charIndexBuggy ? value.charAt(0) : value[0]) != \"@\" || lex() != \":\") {\n                  abort();\n                }\n                results[value.slice(1)] = get(lex());\n              }\n              return results;\n            }\n            // Unexpected token encountered.\n            abort();\n          }\n          return value;\n        };\n\n        // Internal: Updates a traversed object member.\n        var update = function (source, property, callback) {\n          var element = walk(source, property, callback);\n          if (element === undef) {\n            delete source[property];\n          } else {\n            source[property] = element;\n          }\n        };\n\n        // Internal: Recursively traverses a parsed JSON object, invoking the\n        // `callback` function for each value. This is an implementation of the\n        // `Walk(holder, name)` operation defined in ES 5.1 section 15.12.2.\n        var walk = function (source, property, callback) {\n          var value = source[property], length;\n          if (typeof value == \"object\" && value) {\n            // `forEach` can't be used to traverse an array in Opera <= 8.54\n            // because its `Object#hasOwnProperty` implementation returns `false`\n            // for array indices (e.g., `![1, 2, 3].hasOwnProperty(\"0\")`).\n            if (getClass.call(value) == arrayClass) {\n              for (length = value.length; length--;) {\n                update(value, length, callback);\n              }\n            } else {\n              forEach(value, function (property) {\n                update(value, property, callback);\n              });\n            }\n          }\n          return callback.call(source, property, value);\n        };\n\n        // Public: `JSON.parse`. See ES 5.1 section 15.12.2.\n        exports.parse = function (source, callback) {\n          var result, value;\n          Index = 0;\n          Source = \"\" + source;\n          result = get(lex());\n          // If a JSON string contains multiple tokens, it is invalid.\n          if (lex() != \"$\") {\n            abort();\n          }\n          // Reset the parser state.\n          Index = Source = null;\n          return callback && getClass.call(callback) == functionClass ? walk((value = {}, value[\"\"] = result, value), \"\", callback) : result;\n        };\n      }\n    }\n\n    exports[\"runInContext\"] = runInContext;\n    return exports;\n  }\n\n  if (freeExports && !isLoader) {\n    // Export for CommonJS environments.\n    runInContext(root, freeExports);\n  } else {\n    // Export for web browsers and JavaScript engines.\n    var nativeJSON = root.JSON,\n        previousJSON = root[\"JSON3\"],\n        isRestored = false;\n\n    var JSON3 = runInContext(root, (root[\"JSON3\"] = {\n      // Public: Restores the original value of the global `JSON` object and\n      // returns a reference to the `JSON3` object.\n      \"noConflict\": function () {\n        if (!isRestored) {\n          isRestored = true;\n          root.JSON = nativeJSON;\n          root[\"JSON3\"] = previousJSON;\n          nativeJSON = previousJSON = null;\n        }\n        return JSON3;\n      }\n    }));\n\n    root.JSON = {\n      \"parse\": JSON3.parse,\n      \"stringify\": JSON3.stringify\n    };\n  }\n\n  // Export for asynchronous module loaders.\n  if (isLoader) {\n    define(function () {\n      return JSON3;\n    });\n  }\n}).call(this);\n","module.exports = toArray\n\nfunction toArray(list, index) {\n    var array = []\n\n    index = index || 0\n\n    for (var i = index || 0; i < list.length; i++) {\n        array[i - index] = list[i]\n    }\n\n    return array\n}\n","/*! https://mths.be/utf8js v2.0.0 by @mathias */\n;(function(root) {\n\n\t// Detect free variables `exports`\n\tvar freeExports = typeof exports == 'object' && exports;\n\n\t// Detect free variable `module`\n\tvar freeModule = typeof module == 'object' && module &&\n\t\tmodule.exports == freeExports && module;\n\n\t// Detect free variable `global`, from Node.js or Browserified code,\n\t// and use it as `root`\n\tvar freeGlobal = typeof global == 'object' && global;\n\tif (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal) {\n\t\troot = freeGlobal;\n\t}\n\n\t/*--------------------------------------------------------------------------*/\n\n\tvar stringFromCharCode = String.fromCharCode;\n\n\t// Taken from https://mths.be/punycode\n\tfunction ucs2decode(string) {\n\t\tvar output = [];\n\t\tvar counter = 0;\n\t\tvar length = string.length;\n\t\tvar value;\n\t\tvar extra;\n\t\twhile (counter < length) {\n\t\t\tvalue = string.charCodeAt(counter++);\n\t\t\tif (value >= 0xD800 && value <= 0xDBFF && counter < length) {\n\t\t\t\t// high surrogate, and there is a next character\n\t\t\t\textra = string.charCodeAt(counter++);\n\t\t\t\tif ((extra & 0xFC00) == 0xDC00) { // low surrogate\n\t\t\t\t\toutput.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);\n\t\t\t\t} else {\n\t\t\t\t\t// unmatched surrogate; only append this code unit, in case the next\n\t\t\t\t\t// code unit is the high surrogate of a surrogate pair\n\t\t\t\t\toutput.push(value);\n\t\t\t\t\tcounter--;\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\toutput.push(value);\n\t\t\t}\n\t\t}\n\t\treturn output;\n\t}\n\n\t// Taken from https://mths.be/punycode\n\tfunction ucs2encode(array) {\n\t\tvar length = array.length;\n\t\tvar index = -1;\n\t\tvar value;\n\t\tvar output = '';\n\t\twhile (++index < length) {\n\t\t\tvalue = array[index];\n\t\t\tif (value > 0xFFFF) {\n\t\t\t\tvalue -= 0x10000;\n\t\t\t\toutput += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);\n\t\t\t\tvalue = 0xDC00 | value & 0x3FF;\n\t\t\t}\n\t\t\toutput += stringFromCharCode(value);\n\t\t}\n\t\treturn output;\n\t}\n\n\tfunction checkScalarValue(codePoint) {\n\t\tif (codePoint >= 0xD800 && codePoint <= 0xDFFF) {\n\t\t\tthrow Error(\n\t\t\t\t'Lone surrogate U+' + codePoint.toString(16).toUpperCase() +\n\t\t\t\t' is not a scalar value'\n\t\t\t);\n\t\t}\n\t}\n\t/*--------------------------------------------------------------------------*/\n\n\tfunction createByte(codePoint, shift) {\n\t\treturn stringFromCharCode(((codePoint >> shift) & 0x3F) | 0x80);\n\t}\n\n\tfunction encodeCodePoint(codePoint) {\n\t\tif ((codePoint & 0xFFFFFF80) == 0) { // 1-byte sequence\n\t\t\treturn stringFromCharCode(codePoint);\n\t\t}\n\t\tvar symbol = '';\n\t\tif ((codePoint & 0xFFFFF800) == 0) { // 2-byte sequence\n\t\t\tsymbol = stringFromCharCode(((codePoint >> 6) & 0x1F) | 0xC0);\n\t\t}\n\t\telse if ((codePoint & 0xFFFF0000) == 0) { // 3-byte sequence\n\t\t\tcheckScalarValue(codePoint);\n\t\t\tsymbol = stringFromCharCode(((codePoint >> 12) & 0x0F) | 0xE0);\n\t\t\tsymbol += createByte(codePoint, 6);\n\t\t}\n\t\telse if ((codePoint & 0xFFE00000) == 0) { // 4-byte sequence\n\t\t\tsymbol = stringFromCharCode(((codePoint >> 18) & 0x07) | 0xF0);\n\t\t\tsymbol += createByte(codePoint, 12);\n\t\t\tsymbol += createByte(codePoint, 6);\n\t\t}\n\t\tsymbol += stringFromCharCode((codePoint & 0x3F) | 0x80);\n\t\treturn symbol;\n\t}\n\n\tfunction utf8encode(string) {\n\t\tvar codePoints = ucs2decode(string);\n\t\tvar length = codePoints.length;\n\t\tvar index = -1;\n\t\tvar codePoint;\n\t\tvar byteString = '';\n\t\twhile (++index < length) {\n\t\t\tcodePoint = codePoints[index];\n\t\t\tbyteString += encodeCodePoint(codePoint);\n\t\t}\n\t\treturn byteString;\n\t}\n\n\t/*--------------------------------------------------------------------------*/\n\n\tfunction readContinuationByte() {\n\t\tif (byteIndex >= byteCount) {\n\t\t\tthrow Error('Invalid byte index');\n\t\t}\n\n\t\tvar continuationByte = byteArray[byteIndex] & 0xFF;\n\t\tbyteIndex++;\n\n\t\tif ((continuationByte & 0xC0) == 0x80) {\n\t\t\treturn continuationByte & 0x3F;\n\t\t}\n\n\t\t// If we end up here, it’s not a continuation byte\n\t\tthrow Error('Invalid continuation byte');\n\t}\n\n\tfunction decodeSymbol() {\n\t\tvar byte1;\n\t\tvar byte2;\n\t\tvar byte3;\n\t\tvar byte4;\n\t\tvar codePoint;\n\n\t\tif (byteIndex > byteCount) {\n\t\t\tthrow Error('Invalid byte index');\n\t\t}\n\n\t\tif (byteIndex == byteCount) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Read first byte\n\t\tbyte1 = byteArray[byteIndex] & 0xFF;\n\t\tbyteIndex++;\n\n\t\t// 1-byte sequence (no continuation bytes)\n\t\tif ((byte1 & 0x80) == 0) {\n\t\t\treturn byte1;\n\t\t}\n\n\t\t// 2-byte sequence\n\t\tif ((byte1 & 0xE0) == 0xC0) {\n\t\t\tvar byte2 = readContinuationByte();\n\t\t\tcodePoint = ((byte1 & 0x1F) << 6) | byte2;\n\t\t\tif (codePoint >= 0x80) {\n\t\t\t\treturn codePoint;\n\t\t\t} else {\n\t\t\t\tthrow Error('Invalid continuation byte');\n\t\t\t}\n\t\t}\n\n\t\t// 3-byte sequence (may include unpaired surrogates)\n\t\tif ((byte1 & 0xF0) == 0xE0) {\n\t\t\tbyte2 = readContinuationByte();\n\t\t\tbyte3 = readContinuationByte();\n\t\t\tcodePoint = ((byte1 & 0x0F) << 12) | (byte2 << 6) | byte3;\n\t\t\tif (codePoint >= 0x0800) {\n\t\t\t\tcheckScalarValue(codePoint);\n\t\t\t\treturn codePoint;\n\t\t\t} else {\n\t\t\t\tthrow Error('Invalid continuation byte');\n\t\t\t}\n\t\t}\n\n\t\t// 4-byte sequence\n\t\tif ((byte1 & 0xF8) == 0xF0) {\n\t\t\tbyte2 = readContinuationByte();\n\t\t\tbyte3 = readContinuationByte();\n\t\t\tbyte4 = readContinuationByte();\n\t\t\tcodePoint = ((byte1 & 0x0F) << 0x12) | (byte2 << 0x0C) |\n\t\t\t\t(byte3 << 0x06) | byte4;\n\t\t\tif (codePoint >= 0x010000 && codePoint <= 0x10FFFF) {\n\t\t\t\treturn codePoint;\n\t\t\t}\n\t\t}\n\n\t\tthrow Error('Invalid UTF-8 detected');\n\t}\n\n\tvar byteArray;\n\tvar byteCount;\n\tvar byteIndex;\n\tfunction utf8decode(byteString) {\n\t\tbyteArray = ucs2decode(byteString);\n\t\tbyteCount = byteArray.length;\n\t\tbyteIndex = 0;\n\t\tvar codePoints = [];\n\t\tvar tmp;\n\t\twhile ((tmp = decodeSymbol()) !== false) {\n\t\t\tcodePoints.push(tmp);\n\t\t}\n\t\treturn ucs2encode(codePoints);\n\t}\n\n\t/*--------------------------------------------------------------------------*/\n\n\tvar utf8 = {\n\t\t'version': '2.0.0',\n\t\t'encode': utf8encode,\n\t\t'decode': utf8decode\n\t};\n\n\t// Some AMD build optimizers, like r.js, check for specific condition patterns\n\t// like the following:\n\tif (\n\t\ttypeof define == 'function' &&\n\t\ttypeof define.amd == 'object' &&\n\t\tdefine.amd\n\t) {\n\t\tdefine(function() {\n\t\t\treturn utf8;\n\t\t});\n\t}\telse if (freeExports && !freeExports.nodeType) {\n\t\tif (freeModule) { // in Node.js or RingoJS v0.8.0+\n\t\t\tfreeModule.exports = utf8;\n\t\t} else { // in Narwhal or RingoJS v0.7.0-\n\t\t\tvar object = {};\n\t\t\tvar hasOwnProperty = object.hasOwnProperty;\n\t\t\tfor (var key in utf8) {\n\t\t\t\thasOwnProperty.call(utf8, key) && (freeExports[key] = utf8[key]);\n\t\t\t}\n\t\t}\n\t} else { // in Rhino or a web browser\n\t\troot.utf8 = utf8;\n\t}\n\n}(this));\n","'use strict';\n\nvar alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split('')\n  , length = 64\n  , map = {}\n  , seed = 0\n  , i = 0\n  , prev;\n\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nfunction encode(num) {\n  var encoded = '';\n\n  do {\n    encoded = alphabet[num % length] + encoded;\n    num = Math.floor(num / length);\n  } while (num > 0);\n\n  return encoded;\n}\n\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nfunction decode(str) {\n  var decoded = 0;\n\n  for (i = 0; i < str.length; i++) {\n    decoded = decoded * length + map[str.charAt(i)];\n  }\n\n  return decoded;\n}\n\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nfunction yeast() {\n  var now = encode(+new Date());\n\n  if (now !== prev) return seed = 0, prev = now;\n  return now +'.'+ encode(seed++);\n}\n\n//\n// Map each character to its index.\n//\nfor (; i < length; i++) map[alphabet[i]] = i;\n\n//\n// Expose the `yeast`, `encode` and `decode` functions.\n//\nyeast.encode = encode;\nyeast.decode = decode;\nmodule.exports = yeast;\n"]}
diff --git a/public/main.js b/public/main.js
deleted file mode 100644
index f6ca2ba..0000000
--- a/public/main.js
+++ /dev/null
@@ -1,9604 +0,0 @@
-(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
-const m = require('mithril')
-const socket = require('../socket')
-const store = require('./store')
-
-const Content = { }
-
-Content.vm = (function() {
-  let vm = {}
-
-  vm.storeUpdated = function() {
-    vm.content = store.get('content') || {}
-    m.redraw()
-  }
-
-  vm.init = function() {
-    vm.content = store.get('content') || {}
-    store.listen('content', vm.storeUpdated)
-  }
-
-  vm.onunload = function() {
-    store.unlisten('content')
-  }
-
-  vm.updated = function(name, control) {
-    vm.content[name] = control.target.value
-    store.set('content', vm.content)
-  }
-
-  vm.display = function() {
-    socket.emit('content.display', vm.content)
-  }
-
-  vm.hide = function() {
-    socket.emit('content.hide')
-  }
-
-  return vm
-})()
-
-Content.controller = function() {
-  Content.vm.init()
-
-  this.onunload = Content.vm.onunload
-}
-
-Content.view = function() {
-  return m('div', [
-    m('h3', 'Content'),
-    m('div', { class: 'row' }, [
-      m('div', { class: 'small-12 columns' }, [
-        m('label', [
-          'HTML (use <%- name %> and <%- title %> for values)',
-          m('textarea', {
-            rows: '4',
-            oninput: Content.vm.updated.bind(null, 'html'),
-            value: Content.vm.content.html || '',
-          })
-        ]),
-      ]),
-      m('div', { class: 'small-12 columns' }, [
-        m('label', [
-          'CSS',
-          m('textarea', {
-            rows: '4',
-            oninput: Content.vm.updated.bind(null, 'css'),
-            value: Content.vm.content.css || '',
-          })
-        ]),
-      ]),
-      m('div', { class: 'small-12 columns' }, [
-        m('label', [
-          'Name',
-          m('input[type=text]', {
-            oninput: Content.vm.updated.bind(null, 'name'),
-            value: Content.vm.content.name || '',
-          })
-        ]),
-      ]),
-      m('div', { class: 'small-12 columns' }, [
-        m('label', [
-          'Title',
-          m('input[type=text]', {
-            oninput: Content.vm.updated.bind(null, 'title'),
-            value: Content.vm.content.title || '',
-          })
-        ]),
-      ]),
-      m('a.button', {
-        onclick: Content.vm.display
-      }, 'Display'),
-      m('a.button.alert', {
-        onclick: Content.vm.hide
-      }, 'Hide'),
-    ]),
-  ])
-}
-
-module.exports = Content
-
-},{"../socket":5,"./store":3,"mithril":35}],2:[function(require,module,exports){
-const m = require('mithril')
-
-const Menu = {
-  controller: function() {
-    return {}
-  },
-
-  view: function(ctrl) {
-    return m('div', [
-      m('h3', 'Menu'),
-      m('ul', [
-        m('li', [
-          m('a', { href: '/', config: m.route }, 'Home'),
-        ]),
-        m('li', [
-          m('a', { href: '/content', config: m.route }, 'Content'),
-        ])
-      ]),
-    ])
-  },
-}
-
-module.exports = Menu
-
-},{"mithril":35}],3:[function(require,module,exports){
-const socket = require('../socket')
-const storage = {}
-const events = {}
-
-const store = {
-  get: function(name) {
-    return storage[name]
-  },
-
-  set: function(name, value, dontSend) {
-    storage[name] = value
-
-    if (dontSend) {
-      if (events[name]) {
-        events[name]()
-      }
-      return
-    }
-
-    socket.emit('store', {
-      name,
-      value,
-    })
-  },
-
-  listen: function(name, caller) {
-    events[name] = caller
-  },
-
-  unlisten: function(name) {
-    delete events[name]
-  },
-}
-
-socket.on('store', (data) => {
-  store.set(data.name, data.value, true)
-})
-
-module.exports = store
-
-},{"../socket":5}],4:[function(require,module,exports){
-/**
- * @license
- * caspar-sup <https://filadelfia.is>
- * Copyright 2015 Jonatan Nilsson <http://jonatan.nilsson.is/>
- *
- * Available under WTFPL License (http://www.wtfpl.net/txt/copying/)
-*/
-
-'use strict'
-
-//Add debug components to window. Allows us to play with controls
-//in the console. 
-window.components = {}
-
-require('./socket')
-require('./controller/store')
-
-const m = require('mithril')
-const Menu = require('./controller/menu')
-const Content = require('./controller/content')
-
-m.mount(document.getElementById('menu'), Menu)
-
-m.route(document.getElementById('content'), '/', {
-    '/': {},
-    '/content': Content,
-});
-
-},{"./controller/content":1,"./controller/menu":2,"./controller/store":3,"./socket":5,"mithril":35}],5:[function(require,module,exports){
-const io = require('socket.io-client')
-
-const socket = io()
-
-module.exports = socket
-
-},{"socket.io-client":40}],6:[function(require,module,exports){
-module.exports = after
-
-function after(count, callback, err_cb) {
-    var bail = false
-    err_cb = err_cb || noop
-    proxy.count = count
-
-    return (count === 0) ? callback() : proxy
-
-    function proxy(err, result) {
-        if (proxy.count <= 0) {
-            throw new Error('after called too many times')
-        }
-        --proxy.count
-
-        // after first error, rest are passed to err_cb
-        if (err) {
-            bail = true
-            callback(err)
-            // future error callbacks will go to error handler
-            callback = err_cb
-        } else if (proxy.count === 0 && !bail) {
-            callback(null, result)
-        }
-    }
-}
-
-function noop() {}
-
-},{}],7:[function(require,module,exports){
-/**
- * An abstraction for slicing an arraybuffer even when
- * ArrayBuffer.prototype.slice is not supported
- *
- * @api public
- */
-
-module.exports = function(arraybuffer, start, end) {
-  var bytes = arraybuffer.byteLength;
-  start = start || 0;
-  end = end || bytes;
-
-  if (arraybuffer.slice) { return arraybuffer.slice(start, end); }
-
-  if (start < 0) { start += bytes; }
-  if (end < 0) { end += bytes; }
-  if (end > bytes) { end = bytes; }
-
-  if (start >= bytes || start >= end || bytes === 0) {
-    return new ArrayBuffer(0);
-  }
-
-  var abv = new Uint8Array(arraybuffer);
-  var result = new Uint8Array(end - start);
-  for (var i = start, ii = 0; i < end; i++, ii++) {
-    result[ii] = abv[i];
-  }
-  return result.buffer;
-};
-
-},{}],8:[function(require,module,exports){
-
-/**
- * Expose `Backoff`.
- */
-
-module.exports = Backoff;
-
-/**
- * Initialize backoff timer with `opts`.
- *
- * - `min` initial timeout in milliseconds [100]
- * - `max` max timeout [10000]
- * - `jitter` [0]
- * - `factor` [2]
- *
- * @param {Object} opts
- * @api public
- */
-
-function Backoff(opts) {
-  opts = opts || {};
-  this.ms = opts.min || 100;
-  this.max = opts.max || 10000;
-  this.factor = opts.factor || 2;
-  this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;
-  this.attempts = 0;
-}
-
-/**
- * Return the backoff duration.
- *
- * @return {Number}
- * @api public
- */
-
-Backoff.prototype.duration = function(){
-  var ms = this.ms * Math.pow(this.factor, this.attempts++);
-  if (this.jitter) {
-    var rand =  Math.random();
-    var deviation = Math.floor(rand * this.jitter * ms);
-    ms = (Math.floor(rand * 10) & 1) == 0  ? ms - deviation : ms + deviation;
-  }
-  return Math.min(ms, this.max) | 0;
-};
-
-/**
- * Reset the number of attempts.
- *
- * @api public
- */
-
-Backoff.prototype.reset = function(){
-  this.attempts = 0;
-};
-
-/**
- * Set the minimum duration
- *
- * @api public
- */
-
-Backoff.prototype.setMin = function(min){
-  this.ms = min;
-};
-
-/**
- * Set the maximum duration
- *
- * @api public
- */
-
-Backoff.prototype.setMax = function(max){
-  this.max = max;
-};
-
-/**
- * Set the jitter
- *
- * @api public
- */
-
-Backoff.prototype.setJitter = function(jitter){
-  this.jitter = jitter;
-};
-
-
-},{}],9:[function(require,module,exports){
-/*
- * base64-arraybuffer
- * https://github.com/niklasvh/base64-arraybuffer
- *
- * Copyright (c) 2012 Niklas von Hertzen
- * Licensed under the MIT license.
- */
-(function(chars){
-  "use strict";
-
-  exports.encode = function(arraybuffer) {
-    var bytes = new Uint8Array(arraybuffer),
-    i, len = bytes.length, base64 = "";
-
-    for (i = 0; i < len; i+=3) {
-      base64 += chars[bytes[i] >> 2];
-      base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];
-      base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];
-      base64 += chars[bytes[i + 2] & 63];
-    }
-
-    if ((len % 3) === 2) {
-      base64 = base64.substring(0, base64.length - 1) + "=";
-    } else if (len % 3 === 1) {
-      base64 = base64.substring(0, base64.length - 2) + "==";
-    }
-
-    return base64;
-  };
-
-  exports.decode =  function(base64) {
-    var bufferLength = base64.length * 0.75,
-    len = base64.length, i, p = 0,
-    encoded1, encoded2, encoded3, encoded4;
-
-    if (base64[base64.length - 1] === "=") {
-      bufferLength--;
-      if (base64[base64.length - 2] === "=") {
-        bufferLength--;
-      }
-    }
-
-    var arraybuffer = new ArrayBuffer(bufferLength),
-    bytes = new Uint8Array(arraybuffer);
-
-    for (i = 0; i < len; i+=4) {
-      encoded1 = chars.indexOf(base64[i]);
-      encoded2 = chars.indexOf(base64[i+1]);
-      encoded3 = chars.indexOf(base64[i+2]);
-      encoded4 = chars.indexOf(base64[i+3]);
-
-      bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);
-      bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);
-      bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);
-    }
-
-    return arraybuffer;
-  };
-})("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/");
-
-},{}],10:[function(require,module,exports){
-(function (global){
-/**
- * Create a blob builder even when vendor prefixes exist
- */
-
-var BlobBuilder = global.BlobBuilder
-  || global.WebKitBlobBuilder
-  || global.MSBlobBuilder
-  || global.MozBlobBuilder;
-
-/**
- * Check if Blob constructor is supported
- */
-
-var blobSupported = (function() {
-  try {
-    var a = new Blob(['hi']);
-    return a.size === 2;
-  } catch(e) {
-    return false;
-  }
-})();
-
-/**
- * Check if Blob constructor supports ArrayBufferViews
- * Fails in Safari 6, so we need to map to ArrayBuffers there.
- */
-
-var blobSupportsArrayBufferView = blobSupported && (function() {
-  try {
-    var b = new Blob([new Uint8Array([1,2])]);
-    return b.size === 2;
-  } catch(e) {
-    return false;
-  }
-})();
-
-/**
- * Check if BlobBuilder is supported
- */
-
-var blobBuilderSupported = BlobBuilder
-  && BlobBuilder.prototype.append
-  && BlobBuilder.prototype.getBlob;
-
-/**
- * Helper function that maps ArrayBufferViews to ArrayBuffers
- * Used by BlobBuilder constructor and old browsers that didn't
- * support it in the Blob constructor.
- */
-
-function mapArrayBufferViews(ary) {
-  for (var i = 0; i < ary.length; i++) {
-    var chunk = ary[i];
-    if (chunk.buffer instanceof ArrayBuffer) {
-      var buf = chunk.buffer;
-
-      // if this is a subarray, make a copy so we only
-      // include the subarray region from the underlying buffer
-      if (chunk.byteLength !== buf.byteLength) {
-        var copy = new Uint8Array(chunk.byteLength);
-        copy.set(new Uint8Array(buf, chunk.byteOffset, chunk.byteLength));
-        buf = copy.buffer;
-      }
-
-      ary[i] = buf;
-    }
-  }
-}
-
-function BlobBuilderConstructor(ary, options) {
-  options = options || {};
-
-  var bb = new BlobBuilder();
-  mapArrayBufferViews(ary);
-
-  for (var i = 0; i < ary.length; i++) {
-    bb.append(ary[i]);
-  }
-
-  return (options.type) ? bb.getBlob(options.type) : bb.getBlob();
-};
-
-function BlobConstructor(ary, options) {
-  mapArrayBufferViews(ary);
-  return new Blob(ary, options || {});
-};
-
-module.exports = (function() {
-  if (blobSupported) {
-    return blobSupportsArrayBufferView ? global.Blob : BlobConstructor;
-  } else if (blobBuilderSupported) {
-    return BlobBuilderConstructor;
-  } else {
-    return undefined;
-  }
-})();
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{}],11:[function(require,module,exports){
-
-},{}],12:[function(require,module,exports){
-/**
- * Slice reference.
- */
-
-var slice = [].slice;
-
-/**
- * Bind `obj` to `fn`.
- *
- * @param {Object} obj
- * @param {Function|String} fn or string
- * @return {Function}
- * @api public
- */
-
-module.exports = function(obj, fn){
-  if ('string' == typeof fn) fn = obj[fn];
-  if ('function' != typeof fn) throw new Error('bind() requires a function');
-  var args = slice.call(arguments, 2);
-  return function(){
-    return fn.apply(obj, args.concat(slice.call(arguments)));
-  }
-};
-
-},{}],13:[function(require,module,exports){
-
-/**
- * Expose `Emitter`.
- */
-
-module.exports = Emitter;
-
-/**
- * Initialize a new `Emitter`.
- *
- * @api public
- */
-
-function Emitter(obj) {
-  if (obj) return mixin(obj);
-};
-
-/**
- * Mixin the emitter properties.
- *
- * @param {Object} obj
- * @return {Object}
- * @api private
- */
-
-function mixin(obj) {
-  for (var key in Emitter.prototype) {
-    obj[key] = Emitter.prototype[key];
-  }
-  return obj;
-}
-
-/**
- * Listen on the given `event` with `fn`.
- *
- * @param {String} event
- * @param {Function} fn
- * @return {Emitter}
- * @api public
- */
-
-Emitter.prototype.on =
-Emitter.prototype.addEventListener = function(event, fn){
-  this._callbacks = this._callbacks || {};
-  (this._callbacks[event] = this._callbacks[event] || [])
-    .push(fn);
-  return this;
-};
-
-/**
- * Adds an `event` listener that will be invoked a single
- * time then automatically removed.
- *
- * @param {String} event
- * @param {Function} fn
- * @return {Emitter}
- * @api public
- */
-
-Emitter.prototype.once = function(event, fn){
-  var self = this;
-  this._callbacks = this._callbacks || {};
-
-  function on() {
-    self.off(event, on);
-    fn.apply(this, arguments);
-  }
-
-  on.fn = fn;
-  this.on(event, on);
-  return this;
-};
-
-/**
- * Remove the given callback for `event` or all
- * registered callbacks.
- *
- * @param {String} event
- * @param {Function} fn
- * @return {Emitter}
- * @api public
- */
-
-Emitter.prototype.off =
-Emitter.prototype.removeListener =
-Emitter.prototype.removeAllListeners =
-Emitter.prototype.removeEventListener = function(event, fn){
-  this._callbacks = this._callbacks || {};
-
-  // all
-  if (0 == arguments.length) {
-    this._callbacks = {};
-    return this;
-  }
-
-  // specific event
-  var callbacks = this._callbacks[event];
-  if (!callbacks) return this;
-
-  // remove all handlers
-  if (1 == arguments.length) {
-    delete this._callbacks[event];
-    return this;
-  }
-
-  // remove specific handler
-  var cb;
-  for (var i = 0; i < callbacks.length; i++) {
-    cb = callbacks[i];
-    if (cb === fn || cb.fn === fn) {
-      callbacks.splice(i, 1);
-      break;
-    }
-  }
-  return this;
-};
-
-/**
- * Emit `event` with the given args.
- *
- * @param {String} event
- * @param {Mixed} ...
- * @return {Emitter}
- */
-
-Emitter.prototype.emit = function(event){
-  this._callbacks = this._callbacks || {};
-  var args = [].slice.call(arguments, 1)
-    , callbacks = this._callbacks[event];
-
-  if (callbacks) {
-    callbacks = callbacks.slice(0);
-    for (var i = 0, len = callbacks.length; i < len; ++i) {
-      callbacks[i].apply(this, args);
-    }
-  }
-
-  return this;
-};
-
-/**
- * Return array of callbacks for `event`.
- *
- * @param {String} event
- * @return {Array}
- * @api public
- */
-
-Emitter.prototype.listeners = function(event){
-  this._callbacks = this._callbacks || {};
-  return this._callbacks[event] || [];
-};
-
-/**
- * Check if this emitter has `event` handlers.
- *
- * @param {String} event
- * @return {Boolean}
- * @api public
- */
-
-Emitter.prototype.hasListeners = function(event){
-  return !! this.listeners(event).length;
-};
-
-},{}],14:[function(require,module,exports){
-
-module.exports = function(a, b){
-  var fn = function(){};
-  fn.prototype = b.prototype;
-  a.prototype = new fn;
-  a.prototype.constructor = a;
-};
-},{}],15:[function(require,module,exports){
-
-/**
- * This is the web browser implementation of `debug()`.
- *
- * Expose `debug()` as the module.
- */
-
-exports = module.exports = require('./debug');
-exports.log = log;
-exports.formatArgs = formatArgs;
-exports.save = save;
-exports.load = load;
-exports.useColors = useColors;
-exports.storage = 'undefined' != typeof chrome
-               && 'undefined' != typeof chrome.storage
-                  ? chrome.storage.local
-                  : localstorage();
-
-/**
- * Colors.
- */
-
-exports.colors = [
-  'lightseagreen',
-  'forestgreen',
-  'goldenrod',
-  'dodgerblue',
-  'darkorchid',
-  'crimson'
-];
-
-/**
- * Currently only WebKit-based Web Inspectors, Firefox >= v31,
- * and the Firebug extension (any Firefox version) are known
- * to support "%c" CSS customizations.
- *
- * TODO: add a `localStorage` variable to explicitly enable/disable colors
- */
-
-function useColors() {
-  // is webkit? http://stackoverflow.com/a/16459606/376773
-  return ('WebkitAppearance' in document.documentElement.style) ||
-    // is firebug? http://stackoverflow.com/a/398120/376773
-    (window.console && (console.firebug || (console.exception && console.table))) ||
-    // is firefox >= v31?
-    // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
-    (navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31);
-}
-
-/**
- * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
- */
-
-exports.formatters.j = function(v) {
-  return JSON.stringify(v);
-};
-
-
-/**
- * Colorize log arguments if enabled.
- *
- * @api public
- */
-
-function formatArgs() {
-  var args = arguments;
-  var useColors = this.useColors;
-
-  args[0] = (useColors ? '%c' : '')
-    + this.namespace
-    + (useColors ? ' %c' : ' ')
-    + args[0]
-    + (useColors ? '%c ' : ' ')
-    + '+' + exports.humanize(this.diff);
-
-  if (!useColors) return args;
-
-  var c = 'color: ' + this.color;
-  args = [args[0], c, 'color: inherit'].concat(Array.prototype.slice.call(args, 1));
-
-  // the final "%c" is somewhat tricky, because there could be other
-  // arguments passed either before or after the %c, so we need to
-  // figure out the correct index to insert the CSS into
-  var index = 0;
-  var lastC = 0;
-  args[0].replace(/%[a-z%]/g, function(match) {
-    if ('%%' === match) return;
-    index++;
-    if ('%c' === match) {
-      // we only are interested in the *last* %c
-      // (the user may have provided their own)
-      lastC = index;
-    }
-  });
-
-  args.splice(lastC, 0, c);
-  return args;
-}
-
-/**
- * Invokes `console.log()` when available.
- * No-op when `console.log` is not a "function".
- *
- * @api public
- */
-
-function log() {
-  // this hackery is required for IE8/9, where
-  // the `console.log` function doesn't have 'apply'
-  return 'object' === typeof console
-    && console.log
-    && Function.prototype.apply.call(console.log, console, arguments);
-}
-
-/**
- * Save `namespaces`.
- *
- * @param {String} namespaces
- * @api private
- */
-
-function save(namespaces) {
-  try {
-    if (null == namespaces) {
-      exports.storage.removeItem('debug');
-    } else {
-      exports.storage.debug = namespaces;
-    }
-  } catch(e) {}
-}
-
-/**
- * Load `namespaces`.
- *
- * @return {String} returns the previously persisted debug modes
- * @api private
- */
-
-function load() {
-  var r;
-  try {
-    r = exports.storage.debug;
-  } catch(e) {}
-  return r;
-}
-
-/**
- * Enable namespaces listed in `localStorage.debug` initially.
- */
-
-exports.enable(load());
-
-/**
- * Localstorage attempts to return the localstorage.
- *
- * This is necessary because safari throws
- * when a user disables cookies/localstorage
- * and you attempt to access it.
- *
- * @return {LocalStorage}
- * @api private
- */
-
-function localstorage(){
-  try {
-    return window.localStorage;
-  } catch (e) {}
-}
-
-},{"./debug":16}],16:[function(require,module,exports){
-
-/**
- * This is the common logic for both the Node.js and web browser
- * implementations of `debug()`.
- *
- * Expose `debug()` as the module.
- */
-
-exports = module.exports = debug;
-exports.coerce = coerce;
-exports.disable = disable;
-exports.enable = enable;
-exports.enabled = enabled;
-exports.humanize = require('ms');
-
-/**
- * The currently active debug mode names, and names to skip.
- */
-
-exports.names = [];
-exports.skips = [];
-
-/**
- * Map of special "%n" handling functions, for the debug "format" argument.
- *
- * Valid key names are a single, lowercased letter, i.e. "n".
- */
-
-exports.formatters = {};
-
-/**
- * Previously assigned color.
- */
-
-var prevColor = 0;
-
-/**
- * Previous log timestamp.
- */
-
-var prevTime;
-
-/**
- * Select a color.
- *
- * @return {Number}
- * @api private
- */
-
-function selectColor() {
-  return exports.colors[prevColor++ % exports.colors.length];
-}
-
-/**
- * Create a debugger with the given `namespace`.
- *
- * @param {String} namespace
- * @return {Function}
- * @api public
- */
-
-function debug(namespace) {
-
-  // define the `disabled` version
-  function disabled() {
-  }
-  disabled.enabled = false;
-
-  // define the `enabled` version
-  function enabled() {
-
-    var self = enabled;
-
-    // set `diff` timestamp
-    var curr = +new Date();
-    var ms = curr - (prevTime || curr);
-    self.diff = ms;
-    self.prev = prevTime;
-    self.curr = curr;
-    prevTime = curr;
-
-    // add the `color` if not set
-    if (null == self.useColors) self.useColors = exports.useColors();
-    if (null == self.color && self.useColors) self.color = selectColor();
-
-    var args = Array.prototype.slice.call(arguments);
-
-    args[0] = exports.coerce(args[0]);
-
-    if ('string' !== typeof args[0]) {
-      // anything else let's inspect with %o
-      args = ['%o'].concat(args);
-    }
-
-    // apply any `formatters` transformations
-    var index = 0;
-    args[0] = args[0].replace(/%([a-z%])/g, function(match, format) {
-      // if we encounter an escaped % then don't increase the array index
-      if (match === '%%') return match;
-      index++;
-      var formatter = exports.formatters[format];
-      if ('function' === typeof formatter) {
-        var val = args[index];
-        match = formatter.call(self, val);
-
-        // now we need to remove `args[index]` since it's inlined in the `format`
-        args.splice(index, 1);
-        index--;
-      }
-      return match;
-    });
-
-    if ('function' === typeof exports.formatArgs) {
-      args = exports.formatArgs.apply(self, args);
-    }
-    var logFn = enabled.log || exports.log || console.log.bind(console);
-    logFn.apply(self, args);
-  }
-  enabled.enabled = true;
-
-  var fn = exports.enabled(namespace) ? enabled : disabled;
-
-  fn.namespace = namespace;
-
-  return fn;
-}
-
-/**
- * Enables a debug mode by namespaces. This can include modes
- * separated by a colon and wildcards.
- *
- * @param {String} namespaces
- * @api public
- */
-
-function enable(namespaces) {
-  exports.save(namespaces);
-
-  var split = (namespaces || '').split(/[\s,]+/);
-  var len = split.length;
-
-  for (var i = 0; i < len; i++) {
-    if (!split[i]) continue; // ignore empty strings
-    namespaces = split[i].replace(/\*/g, '.*?');
-    if (namespaces[0] === '-') {
-      exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
-    } else {
-      exports.names.push(new RegExp('^' + namespaces + '$'));
-    }
-  }
-}
-
-/**
- * Disable debug output.
- *
- * @api public
- */
-
-function disable() {
-  exports.enable('');
-}
-
-/**
- * Returns true if the given mode name is enabled, false otherwise.
- *
- * @param {String} name
- * @return {Boolean}
- * @api public
- */
-
-function enabled(name) {
-  var i, len;
-  for (i = 0, len = exports.skips.length; i < len; i++) {
-    if (exports.skips[i].test(name)) {
-      return false;
-    }
-  }
-  for (i = 0, len = exports.names.length; i < len; i++) {
-    if (exports.names[i].test(name)) {
-      return true;
-    }
-  }
-  return false;
-}
-
-/**
- * Coerce `val`.
- *
- * @param {Mixed} val
- * @return {Mixed}
- * @api private
- */
-
-function coerce(val) {
-  if (val instanceof Error) return val.stack || val.message;
-  return val;
-}
-
-},{"ms":36}],17:[function(require,module,exports){
-
-module.exports =  require('./lib/');
-
-},{"./lib/":18}],18:[function(require,module,exports){
-
-module.exports = require('./socket');
-
-/**
- * Exports parser
- *
- * @api public
- *
- */
-module.exports.parser = require('engine.io-parser');
-
-},{"./socket":19,"engine.io-parser":27}],19:[function(require,module,exports){
-(function (global){
-/**
- * Module dependencies.
- */
-
-var transports = require('./transports');
-var Emitter = require('component-emitter');
-var debug = require('debug')('engine.io-client:socket');
-var index = require('indexof');
-var parser = require('engine.io-parser');
-var parseuri = require('parseuri');
-var parsejson = require('parsejson');
-var parseqs = require('parseqs');
-
-/**
- * Module exports.
- */
-
-module.exports = Socket;
-
-/**
- * Noop function.
- *
- * @api private
- */
-
-function noop(){}
-
-/**
- * Socket constructor.
- *
- * @param {String|Object} uri or options
- * @param {Object} options
- * @api public
- */
-
-function Socket(uri, opts){
-  if (!(this instanceof Socket)) return new Socket(uri, opts);
-
-  opts = opts || {};
-
-  if (uri && 'object' == typeof uri) {
-    opts = uri;
-    uri = null;
-  }
-
-  if (uri) {
-    uri = parseuri(uri);
-    opts.hostname = uri.host;
-    opts.secure = uri.protocol == 'https' || uri.protocol == 'wss';
-    opts.port = uri.port;
-    if (uri.query) opts.query = uri.query;
-  } else if (opts.host) {
-    opts.hostname = parseuri(opts.host).host;
-  }
-
-  this.secure = null != opts.secure ? opts.secure :
-    (global.location && 'https:' == location.protocol);
-
-  if (opts.hostname && !opts.port) {
-    // if no port is specified manually, use the protocol default
-    opts.port = this.secure ? '443' : '80';
-  }
-
-  this.agent = opts.agent || false;
-  this.hostname = opts.hostname ||
-    (global.location ? location.hostname : 'localhost');
-  this.port = opts.port || (global.location && location.port ?
-       location.port :
-       (this.secure ? 443 : 80));
-  this.query = opts.query || {};
-  if ('string' == typeof this.query) this.query = parseqs.decode(this.query);
-  this.upgrade = false !== opts.upgrade;
-  this.path = (opts.path || '/engine.io').replace(/\/$/, '') + '/';
-  this.forceJSONP = !!opts.forceJSONP;
-  this.jsonp = false !== opts.jsonp;
-  this.forceBase64 = !!opts.forceBase64;
-  this.enablesXDR = !!opts.enablesXDR;
-  this.timestampParam = opts.timestampParam || 't';
-  this.timestampRequests = opts.timestampRequests;
-  this.transports = opts.transports || ['polling', 'websocket'];
-  this.readyState = '';
-  this.writeBuffer = [];
-  this.policyPort = opts.policyPort || 843;
-  this.rememberUpgrade = opts.rememberUpgrade || false;
-  this.binaryType = null;
-  this.onlyBinaryUpgrades = opts.onlyBinaryUpgrades;
-  this.perMessageDeflate = false !== opts.perMessageDeflate ? (opts.perMessageDeflate || {}) : false;
-
-  if (true === this.perMessageDeflate) this.perMessageDeflate = {};
-  if (this.perMessageDeflate && null == this.perMessageDeflate.threshold) {
-    this.perMessageDeflate.threshold = 1024;
-  }
-
-  // SSL options for Node.js client
-  this.pfx = opts.pfx || null;
-  this.key = opts.key || null;
-  this.passphrase = opts.passphrase || null;
-  this.cert = opts.cert || null;
-  this.ca = opts.ca || null;
-  this.ciphers = opts.ciphers || null;
-  this.rejectUnauthorized = opts.rejectUnauthorized === undefined ? null : opts.rejectUnauthorized;
-
-  // other options for Node.js client
-  var freeGlobal = typeof global == 'object' && global;
-  if (freeGlobal.global === freeGlobal) {
-    if (opts.extraHeaders && Object.keys(opts.extraHeaders).length > 0) {
-      this.extraHeaders = opts.extraHeaders;
-    }
-  }
-
-  this.open();
-}
-
-Socket.priorWebsocketSuccess = false;
-
-/**
- * Mix in `Emitter`.
- */
-
-Emitter(Socket.prototype);
-
-/**
- * Protocol version.
- *
- * @api public
- */
-
-Socket.protocol = parser.protocol; // this is an int
-
-/**
- * Expose deps for legacy compatibility
- * and standalone browser access.
- */
-
-Socket.Socket = Socket;
-Socket.Transport = require('./transport');
-Socket.transports = require('./transports');
-Socket.parser = require('engine.io-parser');
-
-/**
- * Creates transport of the given type.
- *
- * @param {String} transport name
- * @return {Transport}
- * @api private
- */
-
-Socket.prototype.createTransport = function (name) {
-  debug('creating transport "%s"', name);
-  var query = clone(this.query);
-
-  // append engine.io protocol identifier
-  query.EIO = parser.protocol;
-
-  // transport name
-  query.transport = name;
-
-  // session id if we already have one
-  if (this.id) query.sid = this.id;
-
-  var transport = new transports[name]({
-    agent: this.agent,
-    hostname: this.hostname,
-    port: this.port,
-    secure: this.secure,
-    path: this.path,
-    query: query,
-    forceJSONP: this.forceJSONP,
-    jsonp: this.jsonp,
-    forceBase64: this.forceBase64,
-    enablesXDR: this.enablesXDR,
-    timestampRequests: this.timestampRequests,
-    timestampParam: this.timestampParam,
-    policyPort: this.policyPort,
-    socket: this,
-    pfx: this.pfx,
-    key: this.key,
-    passphrase: this.passphrase,
-    cert: this.cert,
-    ca: this.ca,
-    ciphers: this.ciphers,
-    rejectUnauthorized: this.rejectUnauthorized,
-    perMessageDeflate: this.perMessageDeflate,
-    extraHeaders: this.extraHeaders
-  });
-
-  return transport;
-};
-
-function clone (obj) {
-  var o = {};
-  for (var i in obj) {
-    if (obj.hasOwnProperty(i)) {
-      o[i] = obj[i];
-    }
-  }
-  return o;
-}
-
-/**
- * Initializes transport to use and starts probe.
- *
- * @api private
- */
-Socket.prototype.open = function () {
-  var transport;
-  if (this.rememberUpgrade && Socket.priorWebsocketSuccess && this.transports.indexOf('websocket') != -1) {
-    transport = 'websocket';
-  } else if (0 === this.transports.length) {
-    // Emit error on next tick so it can be listened to
-    var self = this;
-    setTimeout(function() {
-      self.emit('error', 'No transports available');
-    }, 0);
-    return;
-  } else {
-    transport = this.transports[0];
-  }
-  this.readyState = 'opening';
-
-  // Retry with the next transport if the transport is disabled (jsonp: false)
-  try {
-    transport = this.createTransport(transport);
-  } catch (e) {
-    this.transports.shift();
-    this.open();
-    return;
-  }
-
-  transport.open();
-  this.setTransport(transport);
-};
-
-/**
- * Sets the current transport. Disables the existing one (if any).
- *
- * @api private
- */
-
-Socket.prototype.setTransport = function(transport){
-  debug('setting transport %s', transport.name);
-  var self = this;
-
-  if (this.transport) {
-    debug('clearing existing transport %s', this.transport.name);
-    this.transport.removeAllListeners();
-  }
-
-  // set up transport
-  this.transport = transport;
-
-  // set up transport listeners
-  transport
-  .on('drain', function(){
-    self.onDrain();
-  })
-  .on('packet', function(packet){
-    self.onPacket(packet);
-  })
-  .on('error', function(e){
-    self.onError(e);
-  })
-  .on('close', function(){
-    self.onClose('transport close');
-  });
-};
-
-/**
- * Probes a transport.
- *
- * @param {String} transport name
- * @api private
- */
-
-Socket.prototype.probe = function (name) {
-  debug('probing transport "%s"', name);
-  var transport = this.createTransport(name, { probe: 1 })
-    , failed = false
-    , self = this;
-
-  Socket.priorWebsocketSuccess = false;
-
-  function onTransportOpen(){
-    if (self.onlyBinaryUpgrades) {
-      var upgradeLosesBinary = !this.supportsBinary && self.transport.supportsBinary;
-      failed = failed || upgradeLosesBinary;
-    }
-    if (failed) return;
-
-    debug('probe transport "%s" opened', name);
-    transport.send([{ type: 'ping', data: 'probe' }]);
-    transport.once('packet', function (msg) {
-      if (failed) return;
-      if ('pong' == msg.type && 'probe' == msg.data) {
-        debug('probe transport "%s" pong', name);
-        self.upgrading = true;
-        self.emit('upgrading', transport);
-        if (!transport) return;
-        Socket.priorWebsocketSuccess = 'websocket' == transport.name;
-
-        debug('pausing current transport "%s"', self.transport.name);
-        self.transport.pause(function () {
-          if (failed) return;
-          if ('closed' == self.readyState) return;
-          debug('changing transport and sending upgrade packet');
-
-          cleanup();
-
-          self.setTransport(transport);
-          transport.send([{ type: 'upgrade' }]);
-          self.emit('upgrade', transport);
-          transport = null;
-          self.upgrading = false;
-          self.flush();
-        });
-      } else {
-        debug('probe transport "%s" failed', name);
-        var err = new Error('probe error');
-        err.transport = transport.name;
-        self.emit('upgradeError', err);
-      }
-    });
-  }
-
-  function freezeTransport() {
-    if (failed) return;
-
-    // Any callback called by transport should be ignored since now
-    failed = true;
-
-    cleanup();
-
-    transport.close();
-    transport = null;
-  }
-
-  //Handle any error that happens while probing
-  function onerror(err) {
-    var error = new Error('probe error: ' + err);
-    error.transport = transport.name;
-
-    freezeTransport();
-
-    debug('probe transport "%s" failed because of error: %s', name, err);
-
-    self.emit('upgradeError', error);
-  }
-
-  function onTransportClose(){
-    onerror("transport closed");
-  }
-
-  //When the socket is closed while we're probing
-  function onclose(){
-    onerror("socket closed");
-  }
-
-  //When the socket is upgraded while we're probing
-  function onupgrade(to){
-    if (transport && to.name != transport.name) {
-      debug('"%s" works - aborting "%s"', to.name, transport.name);
-      freezeTransport();
-    }
-  }
-
-  //Remove all listeners on the transport and on self
-  function cleanup(){
-    transport.removeListener('open', onTransportOpen);
-    transport.removeListener('error', onerror);
-    transport.removeListener('close', onTransportClose);
-    self.removeListener('close', onclose);
-    self.removeListener('upgrading', onupgrade);
-  }
-
-  transport.once('open', onTransportOpen);
-  transport.once('error', onerror);
-  transport.once('close', onTransportClose);
-
-  this.once('close', onclose);
-  this.once('upgrading', onupgrade);
-
-  transport.open();
-
-};
-
-/**
- * Called when connection is deemed open.
- *
- * @api public
- */
-
-Socket.prototype.onOpen = function () {
-  debug('socket open');
-  this.readyState = 'open';
-  Socket.priorWebsocketSuccess = 'websocket' == this.transport.name;
-  this.emit('open');
-  this.flush();
-
-  // we check for `readyState` in case an `open`
-  // listener already closed the socket
-  if ('open' == this.readyState && this.upgrade && this.transport.pause) {
-    debug('starting upgrade probes');
-    for (var i = 0, l = this.upgrades.length; i < l; i++) {
-      this.probe(this.upgrades[i]);
-    }
-  }
-};
-
-/**
- * Handles a packet.
- *
- * @api private
- */
-
-Socket.prototype.onPacket = function (packet) {
-  if ('opening' == this.readyState || 'open' == this.readyState) {
-    debug('socket receive: type "%s", data "%s"', packet.type, packet.data);
-
-    this.emit('packet', packet);
-
-    // Socket is live - any packet counts
-    this.emit('heartbeat');
-
-    switch (packet.type) {
-      case 'open':
-        this.onHandshake(parsejson(packet.data));
-        break;
-
-      case 'pong':
-        this.setPing();
-        this.emit('pong');
-        break;
-
-      case 'error':
-        var err = new Error('server error');
-        err.code = packet.data;
-        this.onError(err);
-        break;
-
-      case 'message':
-        this.emit('data', packet.data);
-        this.emit('message', packet.data);
-        break;
-    }
-  } else {
-    debug('packet received with socket readyState "%s"', this.readyState);
-  }
-};
-
-/**
- * Called upon handshake completion.
- *
- * @param {Object} handshake obj
- * @api private
- */
-
-Socket.prototype.onHandshake = function (data) {
-  this.emit('handshake', data);
-  this.id = data.sid;
-  this.transport.query.sid = data.sid;
-  this.upgrades = this.filterUpgrades(data.upgrades);
-  this.pingInterval = data.pingInterval;
-  this.pingTimeout = data.pingTimeout;
-  this.onOpen();
-  // In case open handler closes socket
-  if  ('closed' == this.readyState) return;
-  this.setPing();
-
-  // Prolong liveness of socket on heartbeat
-  this.removeListener('heartbeat', this.onHeartbeat);
-  this.on('heartbeat', this.onHeartbeat);
-};
-
-/**
- * Resets ping timeout.
- *
- * @api private
- */
-
-Socket.prototype.onHeartbeat = function (timeout) {
-  clearTimeout(this.pingTimeoutTimer);
-  var self = this;
-  self.pingTimeoutTimer = setTimeout(function () {
-    if ('closed' == self.readyState) return;
-    self.onClose('ping timeout');
-  }, timeout || (self.pingInterval + self.pingTimeout));
-};
-
-/**
- * Pings server every `this.pingInterval` and expects response
- * within `this.pingTimeout` or closes connection.
- *
- * @api private
- */
-
-Socket.prototype.setPing = function () {
-  var self = this;
-  clearTimeout(self.pingIntervalTimer);
-  self.pingIntervalTimer = setTimeout(function () {
-    debug('writing ping packet - expecting pong within %sms', self.pingTimeout);
-    self.ping();
-    self.onHeartbeat(self.pingTimeout);
-  }, self.pingInterval);
-};
-
-/**
-* Sends a ping packet.
-*
-* @api private
-*/
-
-Socket.prototype.ping = function () {
-  var self = this;
-  this.sendPacket('ping', function(){
-    self.emit('ping');
-  });
-};
-
-/**
- * Called on `drain` event
- *
- * @api private
- */
-
-Socket.prototype.onDrain = function() {
-  this.writeBuffer.splice(0, this.prevBufferLen);
-
-  // setting prevBufferLen = 0 is very important
-  // for example, when upgrading, upgrade packet is sent over,
-  // and a nonzero prevBufferLen could cause problems on `drain`
-  this.prevBufferLen = 0;
-
-  if (0 === this.writeBuffer.length) {
-    this.emit('drain');
-  } else {
-    this.flush();
-  }
-};
-
-/**
- * Flush write buffers.
- *
- * @api private
- */
-
-Socket.prototype.flush = function () {
-  if ('closed' != this.readyState && this.transport.writable &&
-    !this.upgrading && this.writeBuffer.length) {
-    debug('flushing %d packets in socket', this.writeBuffer.length);
-    this.transport.send(this.writeBuffer);
-    // keep track of current length of writeBuffer
-    // splice writeBuffer and callbackBuffer on `drain`
-    this.prevBufferLen = this.writeBuffer.length;
-    this.emit('flush');
-  }
-};
-
-/**
- * Sends a message.
- *
- * @param {String} message.
- * @param {Function} callback function.
- * @param {Object} options.
- * @return {Socket} for chaining.
- * @api public
- */
-
-Socket.prototype.write =
-Socket.prototype.send = function (msg, options, fn) {
-  this.sendPacket('message', msg, options, fn);
-  return this;
-};
-
-/**
- * Sends a packet.
- *
- * @param {String} packet type.
- * @param {String} data.
- * @param {Object} options.
- * @param {Function} callback function.
- * @api private
- */
-
-Socket.prototype.sendPacket = function (type, data, options, fn) {
-  if('function' == typeof data) {
-    fn = data;
-    data = undefined;
-  }
-
-  if ('function' == typeof options) {
-    fn = options;
-    options = null;
-  }
-
-  if ('closing' == this.readyState || 'closed' == this.readyState) {
-    return;
-  }
-
-  options = options || {};
-  options.compress = false !== options.compress;
-
-  var packet = {
-    type: type,
-    data: data,
-    options: options
-  };
-  this.emit('packetCreate', packet);
-  this.writeBuffer.push(packet);
-  if (fn) this.once('flush', fn);
-  this.flush();
-};
-
-/**
- * Closes the connection.
- *
- * @api private
- */
-
-Socket.prototype.close = function () {
-  if ('opening' == this.readyState || 'open' == this.readyState) {
-    this.readyState = 'closing';
-
-    var self = this;
-
-    if (this.writeBuffer.length) {
-      this.once('drain', function() {
-        if (this.upgrading) {
-          waitForUpgrade();
-        } else {
-          close();
-        }
-      });
-    } else if (this.upgrading) {
-      waitForUpgrade();
-    } else {
-      close();
-    }
-  }
-
-  function close() {
-    self.onClose('forced close');
-    debug('socket closing - telling transport to close');
-    self.transport.close();
-  }
-
-  function cleanupAndClose() {
-    self.removeListener('upgrade', cleanupAndClose);
-    self.removeListener('upgradeError', cleanupAndClose);
-    close();
-  }
-
-  function waitForUpgrade() {
-    // wait for upgrade to finish since we can't send packets while pausing a transport
-    self.once('upgrade', cleanupAndClose);
-    self.once('upgradeError', cleanupAndClose);
-  }
-
-  return this;
-};
-
-/**
- * Called upon transport error
- *
- * @api private
- */
-
-Socket.prototype.onError = function (err) {
-  debug('socket error %j', err);
-  Socket.priorWebsocketSuccess = false;
-  this.emit('error', err);
-  this.onClose('transport error', err);
-};
-
-/**
- * Called upon transport close.
- *
- * @api private
- */
-
-Socket.prototype.onClose = function (reason, desc) {
-  if ('opening' == this.readyState || 'open' == this.readyState || 'closing' == this.readyState) {
-    debug('socket close with reason: "%s"', reason);
-    var self = this;
-
-    // clear timers
-    clearTimeout(this.pingIntervalTimer);
-    clearTimeout(this.pingTimeoutTimer);
-
-    // stop event from firing again for transport
-    this.transport.removeAllListeners('close');
-
-    // ensure transport won't stay open
-    this.transport.close();
-
-    // ignore further transport communication
-    this.transport.removeAllListeners();
-
-    // set ready state
-    this.readyState = 'closed';
-
-    // clear session id
-    this.id = null;
-
-    // emit close event
-    this.emit('close', reason, desc);
-
-    // clean buffers after, so users can still
-    // grab the buffers on `close` event
-    self.writeBuffer = [];
-    self.prevBufferLen = 0;
-  }
-};
-
-/**
- * Filters upgrades, returning only those matching client transports.
- *
- * @param {Array} server upgrades
- * @api private
- *
- */
-
-Socket.prototype.filterUpgrades = function (upgrades) {
-  var filteredUpgrades = [];
-  for (var i = 0, j = upgrades.length; i<j; i++) {
-    if (~index(this.transports, upgrades[i])) filteredUpgrades.push(upgrades[i]);
-  }
-  return filteredUpgrades;
-};
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{"./transport":20,"./transports":21,"component-emitter":13,"debug":15,"engine.io-parser":27,"indexof":34,"parsejson":37,"parseqs":38,"parseuri":39}],20:[function(require,module,exports){
-/**
- * Module dependencies.
- */
-
-var parser = require('engine.io-parser');
-var Emitter = require('component-emitter');
-
-/**
- * Module exports.
- */
-
-module.exports = Transport;
-
-/**
- * Transport abstract constructor.
- *
- * @param {Object} options.
- * @api private
- */
-
-function Transport (opts) {
-  this.path = opts.path;
-  this.hostname = opts.hostname;
-  this.port = opts.port;
-  this.secure = opts.secure;
-  this.query = opts.query;
-  this.timestampParam = opts.timestampParam;
-  this.timestampRequests = opts.timestampRequests;
-  this.readyState = '';
-  this.agent = opts.agent || false;
-  this.socket = opts.socket;
-  this.enablesXDR = opts.enablesXDR;
-
-  // SSL options for Node.js client
-  this.pfx = opts.pfx;
-  this.key = opts.key;
-  this.passphrase = opts.passphrase;
-  this.cert = opts.cert;
-  this.ca = opts.ca;
-  this.ciphers = opts.ciphers;
-  this.rejectUnauthorized = opts.rejectUnauthorized;
-
-  // other options for Node.js client
-  this.extraHeaders = opts.extraHeaders;
-}
-
-/**
- * Mix in `Emitter`.
- */
-
-Emitter(Transport.prototype);
-
-/**
- * Emits an error.
- *
- * @param {String} str
- * @return {Transport} for chaining
- * @api public
- */
-
-Transport.prototype.onError = function (msg, desc) {
-  var err = new Error(msg);
-  err.type = 'TransportError';
-  err.description = desc;
-  this.emit('error', err);
-  return this;
-};
-
-/**
- * Opens the transport.
- *
- * @api public
- */
-
-Transport.prototype.open = function () {
-  if ('closed' == this.readyState || '' == this.readyState) {
-    this.readyState = 'opening';
-    this.doOpen();
-  }
-
-  return this;
-};
-
-/**
- * Closes the transport.
- *
- * @api private
- */
-
-Transport.prototype.close = function () {
-  if ('opening' == this.readyState || 'open' == this.readyState) {
-    this.doClose();
-    this.onClose();
-  }
-
-  return this;
-};
-
-/**
- * Sends multiple packets.
- *
- * @param {Array} packets
- * @api private
- */
-
-Transport.prototype.send = function(packets){
-  if ('open' == this.readyState) {
-    this.write(packets);
-  } else {
-    throw new Error('Transport not open');
-  }
-};
-
-/**
- * Called upon open
- *
- * @api private
- */
-
-Transport.prototype.onOpen = function () {
-  this.readyState = 'open';
-  this.writable = true;
-  this.emit('open');
-};
-
-/**
- * Called with data.
- *
- * @param {String} data
- * @api private
- */
-
-Transport.prototype.onData = function(data){
-  var packet = parser.decodePacket(data, this.socket.binaryType);
-  this.onPacket(packet);
-};
-
-/**
- * Called with a decoded packet.
- */
-
-Transport.prototype.onPacket = function (packet) {
-  this.emit('packet', packet);
-};
-
-/**
- * Called upon close.
- *
- * @api private
- */
-
-Transport.prototype.onClose = function () {
-  this.readyState = 'closed';
-  this.emit('close');
-};
-
-},{"component-emitter":13,"engine.io-parser":27}],21:[function(require,module,exports){
-(function (global){
-/**
- * Module dependencies
- */
-
-var XMLHttpRequest = require('xmlhttprequest-ssl');
-var XHR = require('./polling-xhr');
-var JSONP = require('./polling-jsonp');
-var websocket = require('./websocket');
-
-/**
- * Export transports.
- */
-
-exports.polling = polling;
-exports.websocket = websocket;
-
-/**
- * Polling transport polymorphic constructor.
- * Decides on xhr vs jsonp based on feature detection.
- *
- * @api private
- */
-
-function polling(opts){
-  var xhr;
-  var xd = false;
-  var xs = false;
-  var jsonp = false !== opts.jsonp;
-
-  if (global.location) {
-    var isSSL = 'https:' == location.protocol;
-    var port = location.port;
-
-    // some user agents have empty `location.port`
-    if (!port) {
-      port = isSSL ? 443 : 80;
-    }
-
-    xd = opts.hostname != location.hostname || port != opts.port;
-    xs = opts.secure != isSSL;
-  }
-
-  opts.xdomain = xd;
-  opts.xscheme = xs;
-  xhr = new XMLHttpRequest(opts);
-
-  if ('open' in xhr && !opts.forceJSONP) {
-    return new XHR(opts);
-  } else {
-    if (!jsonp) throw new Error('JSONP disabled');
-    return new JSONP(opts);
-  }
-}
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{"./polling-jsonp":22,"./polling-xhr":23,"./websocket":25,"xmlhttprequest-ssl":26}],22:[function(require,module,exports){
-(function (global){
-
-/**
- * Module requirements.
- */
-
-var Polling = require('./polling');
-var inherit = require('component-inherit');
-
-/**
- * Module exports.
- */
-
-module.exports = JSONPPolling;
-
-/**
- * Cached regular expressions.
- */
-
-var rNewline = /\n/g;
-var rEscapedNewline = /\\n/g;
-
-/**
- * Global JSONP callbacks.
- */
-
-var callbacks;
-
-/**
- * Callbacks count.
- */
-
-var index = 0;
-
-/**
- * Noop.
- */
-
-function empty () { }
-
-/**
- * JSONP Polling constructor.
- *
- * @param {Object} opts.
- * @api public
- */
-
-function JSONPPolling (opts) {
-  Polling.call(this, opts);
-
-  this.query = this.query || {};
-
-  // define global callbacks array if not present
-  // we do this here (lazily) to avoid unneeded global pollution
-  if (!callbacks) {
-    // we need to consider multiple engines in the same page
-    if (!global.___eio) global.___eio = [];
-    callbacks = global.___eio;
-  }
-
-  // callback identifier
-  this.index = callbacks.length;
-
-  // add callback to jsonp global
-  var self = this;
-  callbacks.push(function (msg) {
-    self.onData(msg);
-  });
-
-  // append to query string
-  this.query.j = this.index;
-
-  // prevent spurious errors from being emitted when the window is unloaded
-  if (global.document && global.addEventListener) {
-    global.addEventListener('beforeunload', function () {
-      if (self.script) self.script.onerror = empty;
-    }, false);
-  }
-}
-
-/**
- * Inherits from Polling.
- */
-
-inherit(JSONPPolling, Polling);
-
-/*
- * JSONP only supports binary as base64 encoded strings
- */
-
-JSONPPolling.prototype.supportsBinary = false;
-
-/**
- * Closes the socket.
- *
- * @api private
- */
-
-JSONPPolling.prototype.doClose = function () {
-  if (this.script) {
-    this.script.parentNode.removeChild(this.script);
-    this.script = null;
-  }
-
-  if (this.form) {
-    this.form.parentNode.removeChild(this.form);
-    this.form = null;
-    this.iframe = null;
-  }
-
-  Polling.prototype.doClose.call(this);
-};
-
-/**
- * Starts a poll cycle.
- *
- * @api private
- */
-
-JSONPPolling.prototype.doPoll = function () {
-  var self = this;
-  var script = document.createElement('script');
-
-  if (this.script) {
-    this.script.parentNode.removeChild(this.script);
-    this.script = null;
-  }
-
-  script.async = true;
-  script.src = this.uri();
-  script.onerror = function(e){
-    self.onError('jsonp poll error',e);
-  };
-
-  var insertAt = document.getElementsByTagName('script')[0];
-  if (insertAt) {
-    insertAt.parentNode.insertBefore(script, insertAt);
-  }
-  else {
-    (document.head || document.body).appendChild(script);
-  }
-  this.script = script;
-
-  var isUAgecko = 'undefined' != typeof navigator && /gecko/i.test(navigator.userAgent);
-  
-  if (isUAgecko) {
-    setTimeout(function () {
-      var iframe = document.createElement('iframe');
-      document.body.appendChild(iframe);
-      document.body.removeChild(iframe);
-    }, 100);
-  }
-};
-
-/**
- * Writes with a hidden iframe.
- *
- * @param {String} data to send
- * @param {Function} called upon flush.
- * @api private
- */
-
-JSONPPolling.prototype.doWrite = function (data, fn) {
-  var self = this;
-
-  if (!this.form) {
-    var form = document.createElement('form');
-    var area = document.createElement('textarea');
-    var id = this.iframeId = 'eio_iframe_' + this.index;
-    var iframe;
-
-    form.className = 'socketio';
-    form.style.position = 'absolute';
-    form.style.top = '-1000px';
-    form.style.left = '-1000px';
-    form.target = id;
-    form.method = 'POST';
-    form.setAttribute('accept-charset', 'utf-8');
-    area.name = 'd';
-    form.appendChild(area);
-    document.body.appendChild(form);
-
-    this.form = form;
-    this.area = area;
-  }
-
-  this.form.action = this.uri();
-
-  function complete () {
-    initIframe();
-    fn();
-  }
-
-  function initIframe () {
-    if (self.iframe) {
-      try {
-        self.form.removeChild(self.iframe);
-      } catch (e) {
-        self.onError('jsonp polling iframe removal error', e);
-      }
-    }
-
-    try {
-      // ie6 dynamic iframes with target="" support (thanks Chris Lambacher)
-      var html = '<iframe src="javascript:0" name="'+ self.iframeId +'">';
-      iframe = document.createElement(html);
-    } catch (e) {
-      iframe = document.createElement('iframe');
-      iframe.name = self.iframeId;
-      iframe.src = 'javascript:0';
-    }
-
-    iframe.id = self.iframeId;
-
-    self.form.appendChild(iframe);
-    self.iframe = iframe;
-  }
-
-  initIframe();
-
-  // escape \n to prevent it from being converted into \r\n by some UAs
-  // double escaping is required for escaped new lines because unescaping of new lines can be done safely on server-side
-  data = data.replace(rEscapedNewline, '\\\n');
-  this.area.value = data.replace(rNewline, '\\n');
-
-  try {
-    this.form.submit();
-  } catch(e) {}
-
-  if (this.iframe.attachEvent) {
-    this.iframe.onreadystatechange = function(){
-      if (self.iframe.readyState == 'complete') {
-        complete();
-      }
-    };
-  } else {
-    this.iframe.onload = complete;
-  }
-};
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{"./polling":24,"component-inherit":14}],23:[function(require,module,exports){
-(function (global){
-/**
- * Module requirements.
- */
-
-var XMLHttpRequest = require('xmlhttprequest-ssl');
-var Polling = require('./polling');
-var Emitter = require('component-emitter');
-var inherit = require('component-inherit');
-var debug = require('debug')('engine.io-client:polling-xhr');
-
-/**
- * Module exports.
- */
-
-module.exports = XHR;
-module.exports.Request = Request;
-
-/**
- * Empty function
- */
-
-function empty(){}
-
-/**
- * XHR Polling constructor.
- *
- * @param {Object} opts
- * @api public
- */
-
-function XHR(opts){
-  Polling.call(this, opts);
-
-  if (global.location) {
-    var isSSL = 'https:' == location.protocol;
-    var port = location.port;
-
-    // some user agents have empty `location.port`
-    if (!port) {
-      port = isSSL ? 443 : 80;
-    }
-
-    this.xd = opts.hostname != global.location.hostname ||
-      port != opts.port;
-    this.xs = opts.secure != isSSL;
-  } else {
-    this.extraHeaders = opts.extraHeaders;
-  }
-}
-
-/**
- * Inherits from Polling.
- */
-
-inherit(XHR, Polling);
-
-/**
- * XHR supports binary
- */
-
-XHR.prototype.supportsBinary = true;
-
-/**
- * Creates a request.
- *
- * @param {String} method
- * @api private
- */
-
-XHR.prototype.request = function(opts){
-  opts = opts || {};
-  opts.uri = this.uri();
-  opts.xd = this.xd;
-  opts.xs = this.xs;
-  opts.agent = this.agent || false;
-  opts.supportsBinary = this.supportsBinary;
-  opts.enablesXDR = this.enablesXDR;
-
-  // SSL options for Node.js client
-  opts.pfx = this.pfx;
-  opts.key = this.key;
-  opts.passphrase = this.passphrase;
-  opts.cert = this.cert;
-  opts.ca = this.ca;
-  opts.ciphers = this.ciphers;
-  opts.rejectUnauthorized = this.rejectUnauthorized;
-
-  // other options for Node.js client
-  opts.extraHeaders = this.extraHeaders;
-
-  return new Request(opts);
-};
-
-/**
- * Sends data.
- *
- * @param {String} data to send.
- * @param {Function} called upon flush.
- * @api private
- */
-
-XHR.prototype.doWrite = function(data, fn){
-  var isBinary = typeof data !== 'string' && data !== undefined;
-  var req = this.request({ method: 'POST', data: data, isBinary: isBinary });
-  var self = this;
-  req.on('success', fn);
-  req.on('error', function(err){
-    self.onError('xhr post error', err);
-  });
-  this.sendXhr = req;
-};
-
-/**
- * Starts a poll cycle.
- *
- * @api private
- */
-
-XHR.prototype.doPoll = function(){
-  debug('xhr poll');
-  var req = this.request();
-  var self = this;
-  req.on('data', function(data){
-    self.onData(data);
-  });
-  req.on('error', function(err){
-    self.onError('xhr poll error', err);
-  });
-  this.pollXhr = req;
-};
-
-/**
- * Request constructor
- *
- * @param {Object} options
- * @api public
- */
-
-function Request(opts){
-  this.method = opts.method || 'GET';
-  this.uri = opts.uri;
-  this.xd = !!opts.xd;
-  this.xs = !!opts.xs;
-  this.async = false !== opts.async;
-  this.data = undefined != opts.data ? opts.data : null;
-  this.agent = opts.agent;
-  this.isBinary = opts.isBinary;
-  this.supportsBinary = opts.supportsBinary;
-  this.enablesXDR = opts.enablesXDR;
-
-  // SSL options for Node.js client
-  this.pfx = opts.pfx;
-  this.key = opts.key;
-  this.passphrase = opts.passphrase;
-  this.cert = opts.cert;
-  this.ca = opts.ca;
-  this.ciphers = opts.ciphers;
-  this.rejectUnauthorized = opts.rejectUnauthorized;
-
-  // other options for Node.js client
-  this.extraHeaders = opts.extraHeaders;
-
-  this.create();
-}
-
-/**
- * Mix in `Emitter`.
- */
-
-Emitter(Request.prototype);
-
-/**
- * Creates the XHR object and sends the request.
- *
- * @api private
- */
-
-Request.prototype.create = function(){
-  var opts = { agent: this.agent, xdomain: this.xd, xscheme: this.xs, enablesXDR: this.enablesXDR };
-
-  // SSL options for Node.js client
-  opts.pfx = this.pfx;
-  opts.key = this.key;
-  opts.passphrase = this.passphrase;
-  opts.cert = this.cert;
-  opts.ca = this.ca;
-  opts.ciphers = this.ciphers;
-  opts.rejectUnauthorized = this.rejectUnauthorized;
-
-  var xhr = this.xhr = new XMLHttpRequest(opts);
-  var self = this;
-
-  try {
-    debug('xhr open %s: %s', this.method, this.uri);
-    xhr.open(this.method, this.uri, this.async);
-    try {
-      if (this.extraHeaders) {
-        xhr.setDisableHeaderCheck(true);
-        for (var i in this.extraHeaders) {
-          if (this.extraHeaders.hasOwnProperty(i)) {
-            xhr.setRequestHeader(i, this.extraHeaders[i]);
-          }
-        }
-      }
-    } catch (e) {}
-    if (this.supportsBinary) {
-      // This has to be done after open because Firefox is stupid
-      // http://stackoverflow.com/questions/13216903/get-binary-data-with-xmlhttprequest-in-a-firefox-extension
-      xhr.responseType = 'arraybuffer';
-    }
-
-    if ('POST' == this.method) {
-      try {
-        if (this.isBinary) {
-          xhr.setRequestHeader('Content-type', 'application/octet-stream');
-        } else {
-          xhr.setRequestHeader('Content-type', 'text/plain;charset=UTF-8');
-        }
-      } catch (e) {}
-    }
-
-    // ie6 check
-    if ('withCredentials' in xhr) {
-      xhr.withCredentials = true;
-    }
-
-    if (this.hasXDR()) {
-      xhr.onload = function(){
-        self.onLoad();
-      };
-      xhr.onerror = function(){
-        self.onError(xhr.responseText);
-      };
-    } else {
-      xhr.onreadystatechange = function(){
-        if (4 != xhr.readyState) return;
-        if (200 == xhr.status || 1223 == xhr.status) {
-          self.onLoad();
-        } else {
-          // make sure the `error` event handler that's user-set
-          // does not throw in the same tick and gets caught here
-          setTimeout(function(){
-            self.onError(xhr.status);
-          }, 0);
-        }
-      };
-    }
-
-    debug('xhr data %s', this.data);
-    xhr.send(this.data);
-  } catch (e) {
-    // Need to defer since .create() is called directly fhrom the constructor
-    // and thus the 'error' event can only be only bound *after* this exception
-    // occurs.  Therefore, also, we cannot throw here at all.
-    setTimeout(function() {
-      self.onError(e);
-    }, 0);
-    return;
-  }
-
-  if (global.document) {
-    this.index = Request.requestsCount++;
-    Request.requests[this.index] = this;
-  }
-};
-
-/**
- * Called upon successful response.
- *
- * @api private
- */
-
-Request.prototype.onSuccess = function(){
-  this.emit('success');
-  this.cleanup();
-};
-
-/**
- * Called if we have data.
- *
- * @api private
- */
-
-Request.prototype.onData = function(data){
-  this.emit('data', data);
-  this.onSuccess();
-};
-
-/**
- * Called upon error.
- *
- * @api private
- */
-
-Request.prototype.onError = function(err){
-  this.emit('error', err);
-  this.cleanup(true);
-};
-
-/**
- * Cleans up house.
- *
- * @api private
- */
-
-Request.prototype.cleanup = function(fromError){
-  if ('undefined' == typeof this.xhr || null === this.xhr) {
-    return;
-  }
-  // xmlhttprequest
-  if (this.hasXDR()) {
-    this.xhr.onload = this.xhr.onerror = empty;
-  } else {
-    this.xhr.onreadystatechange = empty;
-  }
-
-  if (fromError) {
-    try {
-      this.xhr.abort();
-    } catch(e) {}
-  }
-
-  if (global.document) {
-    delete Request.requests[this.index];
-  }
-
-  this.xhr = null;
-};
-
-/**
- * Called upon load.
- *
- * @api private
- */
-
-Request.prototype.onLoad = function(){
-  var data;
-  try {
-    var contentType;
-    try {
-      contentType = this.xhr.getResponseHeader('Content-Type').split(';')[0];
-    } catch (e) {}
-    if (contentType === 'application/octet-stream') {
-      data = this.xhr.response;
-    } else {
-      if (!this.supportsBinary) {
-        data = this.xhr.responseText;
-      } else {
-        try {
-          data = String.fromCharCode.apply(null, new Uint8Array(this.xhr.response));
-        } catch (e) {
-          var ui8Arr = new Uint8Array(this.xhr.response);
-          var dataArray = [];
-          for (var idx = 0, length = ui8Arr.length; idx < length; idx++) {
-            dataArray.push(ui8Arr[idx]);
-          }
-
-          data = String.fromCharCode.apply(null, dataArray);
-        }
-      }
-    }
-  } catch (e) {
-    this.onError(e);
-  }
-  if (null != data) {
-    this.onData(data);
-  }
-};
-
-/**
- * Check if it has XDomainRequest.
- *
- * @api private
- */
-
-Request.prototype.hasXDR = function(){
-  return 'undefined' !== typeof global.XDomainRequest && !this.xs && this.enablesXDR;
-};
-
-/**
- * Aborts the request.
- *
- * @api public
- */
-
-Request.prototype.abort = function(){
-  this.cleanup();
-};
-
-/**
- * Aborts pending requests when unloading the window. This is needed to prevent
- * memory leaks (e.g. when using IE) and to ensure that no spurious error is
- * emitted.
- */
-
-if (global.document) {
-  Request.requestsCount = 0;
-  Request.requests = {};
-  if (global.attachEvent) {
-    global.attachEvent('onunload', unloadHandler);
-  } else if (global.addEventListener) {
-    global.addEventListener('beforeunload', unloadHandler, false);
-  }
-}
-
-function unloadHandler() {
-  for (var i in Request.requests) {
-    if (Request.requests.hasOwnProperty(i)) {
-      Request.requests[i].abort();
-    }
-  }
-}
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{"./polling":24,"component-emitter":13,"component-inherit":14,"debug":15,"xmlhttprequest-ssl":26}],24:[function(require,module,exports){
-/**
- * Module dependencies.
- */
-
-var Transport = require('../transport');
-var parseqs = require('parseqs');
-var parser = require('engine.io-parser');
-var inherit = require('component-inherit');
-var yeast = require('yeast');
-var debug = require('debug')('engine.io-client:polling');
-
-/**
- * Module exports.
- */
-
-module.exports = Polling;
-
-/**
- * Is XHR2 supported?
- */
-
-var hasXHR2 = (function() {
-  var XMLHttpRequest = require('xmlhttprequest-ssl');
-  var xhr = new XMLHttpRequest({ xdomain: false });
-  return null != xhr.responseType;
-})();
-
-/**
- * Polling interface.
- *
- * @param {Object} opts
- * @api private
- */
-
-function Polling(opts){
-  var forceBase64 = (opts && opts.forceBase64);
-  if (!hasXHR2 || forceBase64) {
-    this.supportsBinary = false;
-  }
-  Transport.call(this, opts);
-}
-
-/**
- * Inherits from Transport.
- */
-
-inherit(Polling, Transport);
-
-/**
- * Transport name.
- */
-
-Polling.prototype.name = 'polling';
-
-/**
- * Opens the socket (triggers polling). We write a PING message to determine
- * when the transport is open.
- *
- * @api private
- */
-
-Polling.prototype.doOpen = function(){
-  this.poll();
-};
-
-/**
- * Pauses polling.
- *
- * @param {Function} callback upon buffers are flushed and transport is paused
- * @api private
- */
-
-Polling.prototype.pause = function(onPause){
-  var pending = 0;
-  var self = this;
-
-  this.readyState = 'pausing';
-
-  function pause(){
-    debug('paused');
-    self.readyState = 'paused';
-    onPause();
-  }
-
-  if (this.polling || !this.writable) {
-    var total = 0;
-
-    if (this.polling) {
-      debug('we are currently polling - waiting to pause');
-      total++;
-      this.once('pollComplete', function(){
-        debug('pre-pause polling complete');
-        --total || pause();
-      });
-    }
-
-    if (!this.writable) {
-      debug('we are currently writing - waiting to pause');
-      total++;
-      this.once('drain', function(){
-        debug('pre-pause writing complete');
-        --total || pause();
-      });
-    }
-  } else {
-    pause();
-  }
-};
-
-/**
- * Starts polling cycle.
- *
- * @api public
- */
-
-Polling.prototype.poll = function(){
-  debug('polling');
-  this.polling = true;
-  this.doPoll();
-  this.emit('poll');
-};
-
-/**
- * Overloads onData to detect payloads.
- *
- * @api private
- */
-
-Polling.prototype.onData = function(data){
-  var self = this;
-  debug('polling got data %s', data);
-  var callback = function(packet, index, total) {
-    // if its the first message we consider the transport open
-    if ('opening' == self.readyState) {
-      self.onOpen();
-    }
-
-    // if its a close packet, we close the ongoing requests
-    if ('close' == packet.type) {
-      self.onClose();
-      return false;
-    }
-
-    // otherwise bypass onData and handle the message
-    self.onPacket(packet);
-  };
-
-  // decode payload
-  parser.decodePayload(data, this.socket.binaryType, callback);
-
-  // if an event did not trigger closing
-  if ('closed' != this.readyState) {
-    // if we got data we're not polling
-    this.polling = false;
-    this.emit('pollComplete');
-
-    if ('open' == this.readyState) {
-      this.poll();
-    } else {
-      debug('ignoring poll - transport state "%s"', this.readyState);
-    }
-  }
-};
-
-/**
- * For polling, send a close packet.
- *
- * @api private
- */
-
-Polling.prototype.doClose = function(){
-  var self = this;
-
-  function close(){
-    debug('writing close packet');
-    self.write([{ type: 'close' }]);
-  }
-
-  if ('open' == this.readyState) {
-    debug('transport open - closing');
-    close();
-  } else {
-    // in case we're trying to close while
-    // handshaking is in progress (GH-164)
-    debug('transport not open - deferring close');
-    this.once('open', close);
-  }
-};
-
-/**
- * Writes a packets payload.
- *
- * @param {Array} data packets
- * @param {Function} drain callback
- * @api private
- */
-
-Polling.prototype.write = function(packets){
-  var self = this;
-  this.writable = false;
-  var callbackfn = function() {
-    self.writable = true;
-    self.emit('drain');
-  };
-
-  var self = this;
-  parser.encodePayload(packets, this.supportsBinary, function(data) {
-    self.doWrite(data, callbackfn);
-  });
-};
-
-/**
- * Generates uri for connection.
- *
- * @api private
- */
-
-Polling.prototype.uri = function(){
-  var query = this.query || {};
-  var schema = this.secure ? 'https' : 'http';
-  var port = '';
-
-  // cache busting is forced
-  if (false !== this.timestampRequests) {
-    query[this.timestampParam] = yeast();
-  }
-
-  if (!this.supportsBinary && !query.sid) {
-    query.b64 = 1;
-  }
-
-  query = parseqs.encode(query);
-
-  // avoid port if default for schema
-  if (this.port && (('https' == schema && this.port != 443) ||
-     ('http' == schema && this.port != 80))) {
-    port = ':' + this.port;
-  }
-
-  // prepend ? to query
-  if (query.length) {
-    query = '?' + query;
-  }
-
-  var ipv6 = this.hostname.indexOf(':') !== -1;
-  return schema + '://' + (ipv6 ? '[' + this.hostname + ']' : this.hostname) + port + this.path + query;
-};
-
-},{"../transport":20,"component-inherit":14,"debug":15,"engine.io-parser":27,"parseqs":38,"xmlhttprequest-ssl":26,"yeast":53}],25:[function(require,module,exports){
-(function (global){
-/**
- * Module dependencies.
- */
-
-var Transport = require('../transport');
-var parser = require('engine.io-parser');
-var parseqs = require('parseqs');
-var inherit = require('component-inherit');
-var yeast = require('yeast');
-var debug = require('debug')('engine.io-client:websocket');
-var BrowserWebSocket = global.WebSocket || global.MozWebSocket;
-
-/**
- * Get either the `WebSocket` or `MozWebSocket` globals
- * in the browser or try to resolve WebSocket-compatible
- * interface exposed by `ws` for Node-like environment.
- */
-
-var WebSocket = BrowserWebSocket;
-if (!WebSocket && typeof window === 'undefined') {
-  try {
-    WebSocket = require('ws');
-  } catch (e) { }
-}
-
-/**
- * Module exports.
- */
-
-module.exports = WS;
-
-/**
- * WebSocket transport constructor.
- *
- * @api {Object} connection options
- * @api public
- */
-
-function WS(opts){
-  var forceBase64 = (opts && opts.forceBase64);
-  if (forceBase64) {
-    this.supportsBinary = false;
-  }
-  this.perMessageDeflate = opts.perMessageDeflate;
-  Transport.call(this, opts);
-}
-
-/**
- * Inherits from Transport.
- */
-
-inherit(WS, Transport);
-
-/**
- * Transport name.
- *
- * @api public
- */
-
-WS.prototype.name = 'websocket';
-
-/*
- * WebSockets support binary
- */
-
-WS.prototype.supportsBinary = true;
-
-/**
- * Opens socket.
- *
- * @api private
- */
-
-WS.prototype.doOpen = function(){
-  if (!this.check()) {
-    // let probe timeout
-    return;
-  }
-
-  var self = this;
-  var uri = this.uri();
-  var protocols = void(0);
-  var opts = {
-    agent: this.agent,
-    perMessageDeflate: this.perMessageDeflate
-  };
-
-  // SSL options for Node.js client
-  opts.pfx = this.pfx;
-  opts.key = this.key;
-  opts.passphrase = this.passphrase;
-  opts.cert = this.cert;
-  opts.ca = this.ca;
-  opts.ciphers = this.ciphers;
-  opts.rejectUnauthorized = this.rejectUnauthorized;
-  if (this.extraHeaders) {
-    opts.headers = this.extraHeaders;
-  }
-
-  this.ws = BrowserWebSocket ? new WebSocket(uri) : new WebSocket(uri, protocols, opts);
-
-  if (this.ws.binaryType === undefined) {
-    this.supportsBinary = false;
-  }
-
-  if (this.ws.supports && this.ws.supports.binary) {
-    this.supportsBinary = true;
-    this.ws.binaryType = 'buffer';
-  } else {
-    this.ws.binaryType = 'arraybuffer';
-  }
-
-  this.addEventListeners();
-};
-
-/**
- * Adds event listeners to the socket
- *
- * @api private
- */
-
-WS.prototype.addEventListeners = function(){
-  var self = this;
-
-  this.ws.onopen = function(){
-    self.onOpen();
-  };
-  this.ws.onclose = function(){
-    self.onClose();
-  };
-  this.ws.onmessage = function(ev){
-    self.onData(ev.data);
-  };
-  this.ws.onerror = function(e){
-    self.onError('websocket error', e);
-  };
-};
-
-/**
- * Override `onData` to use a timer on iOS.
- * See: https://gist.github.com/mloughran/2052006
- *
- * @api private
- */
-
-if ('undefined' != typeof navigator
-  && /iPad|iPhone|iPod/i.test(navigator.userAgent)) {
-  WS.prototype.onData = function(data){
-    var self = this;
-    setTimeout(function(){
-      Transport.prototype.onData.call(self, data);
-    }, 0);
-  };
-}
-
-/**
- * Writes data to socket.
- *
- * @param {Array} array of packets.
- * @api private
- */
-
-WS.prototype.write = function(packets){
-  var self = this;
-  this.writable = false;
-
-  // encodePacket efficient as it uses WS framing
-  // no need for encodePayload
-  var total = packets.length;
-  for (var i = 0, l = total; i < l; i++) {
-    (function(packet) {
-      parser.encodePacket(packet, self.supportsBinary, function(data) {
-        if (!BrowserWebSocket) {
-          // always create a new object (GH-437)
-          var opts = {};
-          if (packet.options) {
-            opts.compress = packet.options.compress;
-          }
-
-          if (self.perMessageDeflate) {
-            var len = 'string' == typeof data ? global.Buffer.byteLength(data) : data.length;
-            if (len < self.perMessageDeflate.threshold) {
-              opts.compress = false;
-            }
-          }
-        }
-
-        //Sometimes the websocket has already been closed but the browser didn't
-        //have a chance of informing us about it yet, in that case send will
-        //throw an error
-        try {
-          if (BrowserWebSocket) {
-            // TypeError is thrown when passing the second argument on Safari
-            self.ws.send(data);
-          } else {
-            self.ws.send(data, opts);
-          }
-        } catch (e){
-          debug('websocket closed before onclose event');
-        }
-
-        --total || done();
-      });
-    })(packets[i]);
-  }
-
-  function done(){
-    self.emit('flush');
-
-    // fake drain
-    // defer to next tick to allow Socket to clear writeBuffer
-    setTimeout(function(){
-      self.writable = true;
-      self.emit('drain');
-    }, 0);
-  }
-};
-
-/**
- * Called upon close
- *
- * @api private
- */
-
-WS.prototype.onClose = function(){
-  Transport.prototype.onClose.call(this);
-};
-
-/**
- * Closes socket.
- *
- * @api private
- */
-
-WS.prototype.doClose = function(){
-  if (typeof this.ws !== 'undefined') {
-    this.ws.close();
-  }
-};
-
-/**
- * Generates uri for connection.
- *
- * @api private
- */
-
-WS.prototype.uri = function(){
-  var query = this.query || {};
-  var schema = this.secure ? 'wss' : 'ws';
-  var port = '';
-
-  // avoid port if default for schema
-  if (this.port && (('wss' == schema && this.port != 443)
-    || ('ws' == schema && this.port != 80))) {
-    port = ':' + this.port;
-  }
-
-  // append timestamp to URI
-  if (this.timestampRequests) {
-    query[this.timestampParam] = yeast();
-  }
-
-  // communicate binary support capabilities
-  if (!this.supportsBinary) {
-    query.b64 = 1;
-  }
-
-  query = parseqs.encode(query);
-
-  // prepend ? to query
-  if (query.length) {
-    query = '?' + query;
-  }
-
-  var ipv6 = this.hostname.indexOf(':') !== -1;
-  return schema + '://' + (ipv6 ? '[' + this.hostname + ']' : this.hostname) + port + this.path + query;
-};
-
-/**
- * Feature detection for WebSocket.
- *
- * @return {Boolean} whether this transport is available.
- * @api public
- */
-
-WS.prototype.check = function(){
-  return !!WebSocket && !('__initialize' in WebSocket && this.name === WS.prototype.name);
-};
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{"../transport":20,"component-inherit":14,"debug":15,"engine.io-parser":27,"parseqs":38,"ws":11,"yeast":53}],26:[function(require,module,exports){
-// browser shim for xmlhttprequest module
-var hasCORS = require('has-cors');
-
-module.exports = function(opts) {
-  var xdomain = opts.xdomain;
-
-  // scheme must be same when usign XDomainRequest
-  // http://blogs.msdn.com/b/ieinternals/archive/2010/05/13/xdomainrequest-restrictions-limitations-and-workarounds.aspx
-  var xscheme = opts.xscheme;
-
-  // XDomainRequest has a flow of not sending cookie, therefore it should be disabled as a default.
-  // https://github.com/Automattic/engine.io-client/pull/217
-  var enablesXDR = opts.enablesXDR;
-
-  // XMLHttpRequest can be disabled on IE
-  try {
-    if ('undefined' != typeof XMLHttpRequest && (!xdomain || hasCORS)) {
-      return new XMLHttpRequest();
-    }
-  } catch (e) { }
-
-  // Use XDomainRequest for IE8 if enablesXDR is true
-  // because loading bar keeps flashing when using jsonp-polling
-  // https://github.com/yujiosaka/socke.io-ie8-loading-example
-  try {
-    if ('undefined' != typeof XDomainRequest && !xscheme && enablesXDR) {
-      return new XDomainRequest();
-    }
-  } catch (e) { }
-
-  if (!xdomain) {
-    try {
-      return new ActiveXObject('Microsoft.XMLHTTP');
-    } catch(e) { }
-  }
-}
-
-},{"has-cors":33}],27:[function(require,module,exports){
-(function (global){
-/**
- * Module dependencies.
- */
-
-var keys = require('./keys');
-var hasBinary = require('has-binary');
-var sliceBuffer = require('arraybuffer.slice');
-var base64encoder = require('base64-arraybuffer');
-var after = require('after');
-var utf8 = require('utf8');
-
-/**
- * Check if we are running an android browser. That requires us to use
- * ArrayBuffer with polling transports...
- *
- * http://ghinda.net/jpeg-blob-ajax-android/
- */
-
-var isAndroid = navigator.userAgent.match(/Android/i);
-
-/**
- * Check if we are running in PhantomJS.
- * Uploading a Blob with PhantomJS does not work correctly, as reported here:
- * https://github.com/ariya/phantomjs/issues/11395
- * @type boolean
- */
-var isPhantomJS = /PhantomJS/i.test(navigator.userAgent);
-
-/**
- * When true, avoids using Blobs to encode payloads.
- * @type boolean
- */
-var dontSendBlobs = isAndroid || isPhantomJS;
-
-/**
- * Current protocol version.
- */
-
-exports.protocol = 3;
-
-/**
- * Packet types.
- */
-
-var packets = exports.packets = {
-    open:     0    // non-ws
-  , close:    1    // non-ws
-  , ping:     2
-  , pong:     3
-  , message:  4
-  , upgrade:  5
-  , noop:     6
-};
-
-var packetslist = keys(packets);
-
-/**
- * Premade error packet.
- */
-
-var err = { type: 'error', data: 'parser error' };
-
-/**
- * Create a blob api even for blob builder when vendor prefixes exist
- */
-
-var Blob = require('blob');
-
-/**
- * Encodes a packet.
- *
- *     <packet type id> [ <data> ]
- *
- * Example:
- *
- *     5hello world
- *     3
- *     4
- *
- * Binary is encoded in an identical principle
- *
- * @api private
- */
-
-exports.encodePacket = function (packet, supportsBinary, utf8encode, callback) {
-  if ('function' == typeof supportsBinary) {
-    callback = supportsBinary;
-    supportsBinary = false;
-  }
-
-  if ('function' == typeof utf8encode) {
-    callback = utf8encode;
-    utf8encode = null;
-  }
-
-  var data = (packet.data === undefined)
-    ? undefined
-    : packet.data.buffer || packet.data;
-
-  if (global.ArrayBuffer && data instanceof ArrayBuffer) {
-    return encodeArrayBuffer(packet, supportsBinary, callback);
-  } else if (Blob && data instanceof global.Blob) {
-    return encodeBlob(packet, supportsBinary, callback);
-  }
-
-  // might be an object with { base64: true, data: dataAsBase64String }
-  if (data && data.base64) {
-    return encodeBase64Object(packet, callback);
-  }
-
-  // Sending data as a utf-8 string
-  var encoded = packets[packet.type];
-
-  // data fragment is optional
-  if (undefined !== packet.data) {
-    encoded += utf8encode ? utf8.encode(String(packet.data)) : String(packet.data);
-  }
-
-  return callback('' + encoded);
-
-};
-
-function encodeBase64Object(packet, callback) {
-  // packet data is an object { base64: true, data: dataAsBase64String }
-  var message = 'b' + exports.packets[packet.type] + packet.data.data;
-  return callback(message);
-}
-
-/**
- * Encode packet helpers for binary types
- */
-
-function encodeArrayBuffer(packet, supportsBinary, callback) {
-  if (!supportsBinary) {
-    return exports.encodeBase64Packet(packet, callback);
-  }
-
-  var data = packet.data;
-  var contentArray = new Uint8Array(data);
-  var resultBuffer = new Uint8Array(1 + data.byteLength);
-
-  resultBuffer[0] = packets[packet.type];
-  for (var i = 0; i < contentArray.length; i++) {
-    resultBuffer[i+1] = contentArray[i];
-  }
-
-  return callback(resultBuffer.buffer);
-}
-
-function encodeBlobAsArrayBuffer(packet, supportsBinary, callback) {
-  if (!supportsBinary) {
-    return exports.encodeBase64Packet(packet, callback);
-  }
-
-  var fr = new FileReader();
-  fr.onload = function() {
-    packet.data = fr.result;
-    exports.encodePacket(packet, supportsBinary, true, callback);
-  };
-  return fr.readAsArrayBuffer(packet.data);
-}
-
-function encodeBlob(packet, supportsBinary, callback) {
-  if (!supportsBinary) {
-    return exports.encodeBase64Packet(packet, callback);
-  }
-
-  if (dontSendBlobs) {
-    return encodeBlobAsArrayBuffer(packet, supportsBinary, callback);
-  }
-
-  var length = new Uint8Array(1);
-  length[0] = packets[packet.type];
-  var blob = new Blob([length.buffer, packet.data]);
-
-  return callback(blob);
-}
-
-/**
- * Encodes a packet with binary data in a base64 string
- *
- * @param {Object} packet, has `type` and `data`
- * @return {String} base64 encoded message
- */
-
-exports.encodeBase64Packet = function(packet, callback) {
-  var message = 'b' + exports.packets[packet.type];
-  if (Blob && packet.data instanceof global.Blob) {
-    var fr = new FileReader();
-    fr.onload = function() {
-      var b64 = fr.result.split(',')[1];
-      callback(message + b64);
-    };
-    return fr.readAsDataURL(packet.data);
-  }
-
-  var b64data;
-  try {
-    b64data = String.fromCharCode.apply(null, new Uint8Array(packet.data));
-  } catch (e) {
-    // iPhone Safari doesn't let you apply with typed arrays
-    var typed = new Uint8Array(packet.data);
-    var basic = new Array(typed.length);
-    for (var i = 0; i < typed.length; i++) {
-      basic[i] = typed[i];
-    }
-    b64data = String.fromCharCode.apply(null, basic);
-  }
-  message += global.btoa(b64data);
-  return callback(message);
-};
-
-/**
- * Decodes a packet. Changes format to Blob if requested.
- *
- * @return {Object} with `type` and `data` (if any)
- * @api private
- */
-
-exports.decodePacket = function (data, binaryType, utf8decode) {
-  // String data
-  if (typeof data == 'string' || data === undefined) {
-    if (data.charAt(0) == 'b') {
-      return exports.decodeBase64Packet(data.substr(1), binaryType);
-    }
-
-    if (utf8decode) {
-      try {
-        data = utf8.decode(data);
-      } catch (e) {
-        return err;
-      }
-    }
-    var type = data.charAt(0);
-
-    if (Number(type) != type || !packetslist[type]) {
-      return err;
-    }
-
-    if (data.length > 1) {
-      return { type: packetslist[type], data: data.substring(1) };
-    } else {
-      return { type: packetslist[type] };
-    }
-  }
-
-  var asArray = new Uint8Array(data);
-  var type = asArray[0];
-  var rest = sliceBuffer(data, 1);
-  if (Blob && binaryType === 'blob') {
-    rest = new Blob([rest]);
-  }
-  return { type: packetslist[type], data: rest };
-};
-
-/**
- * Decodes a packet encoded in a base64 string
- *
- * @param {String} base64 encoded message
- * @return {Object} with `type` and `data` (if any)
- */
-
-exports.decodeBase64Packet = function(msg, binaryType) {
-  var type = packetslist[msg.charAt(0)];
-  if (!global.ArrayBuffer) {
-    return { type: type, data: { base64: true, data: msg.substr(1) } };
-  }
-
-  var data = base64encoder.decode(msg.substr(1));
-
-  if (binaryType === 'blob' && Blob) {
-    data = new Blob([data]);
-  }
-
-  return { type: type, data: data };
-};
-
-/**
- * Encodes multiple messages (payload).
- *
- *     <length>:data
- *
- * Example:
- *
- *     11:hello world2:hi
- *
- * If any contents are binary, they will be encoded as base64 strings. Base64
- * encoded strings are marked with a b before the length specifier
- *
- * @param {Array} packets
- * @api private
- */
-
-exports.encodePayload = function (packets, supportsBinary, callback) {
-  if (typeof supportsBinary == 'function') {
-    callback = supportsBinary;
-    supportsBinary = null;
-  }
-
-  var isBinary = hasBinary(packets);
-
-  if (supportsBinary && isBinary) {
-    if (Blob && !dontSendBlobs) {
-      return exports.encodePayloadAsBlob(packets, callback);
-    }
-
-    return exports.encodePayloadAsArrayBuffer(packets, callback);
-  }
-
-  if (!packets.length) {
-    return callback('0:');
-  }
-
-  function setLengthHeader(message) {
-    return message.length + ':' + message;
-  }
-
-  function encodeOne(packet, doneCallback) {
-    exports.encodePacket(packet, !isBinary ? false : supportsBinary, true, function(message) {
-      doneCallback(null, setLengthHeader(message));
-    });
-  }
-
-  map(packets, encodeOne, function(err, results) {
-    return callback(results.join(''));
-  });
-};
-
-/**
- * Async array map using after
- */
-
-function map(ary, each, done) {
-  var result = new Array(ary.length);
-  var next = after(ary.length, done);
-
-  var eachWithIndex = function(i, el, cb) {
-    each(el, function(error, msg) {
-      result[i] = msg;
-      cb(error, result);
-    });
-  };
-
-  for (var i = 0; i < ary.length; i++) {
-    eachWithIndex(i, ary[i], next);
-  }
-}
-
-/*
- * Decodes data when a payload is maybe expected. Possible binary contents are
- * decoded from their base64 representation
- *
- * @param {String} data, callback method
- * @api public
- */
-
-exports.decodePayload = function (data, binaryType, callback) {
-  if (typeof data != 'string') {
-    return exports.decodePayloadAsBinary(data, binaryType, callback);
-  }
-
-  if (typeof binaryType === 'function') {
-    callback = binaryType;
-    binaryType = null;
-  }
-
-  var packet;
-  if (data == '') {
-    // parser error - ignoring payload
-    return callback(err, 0, 1);
-  }
-
-  var length = ''
-    , n, msg;
-
-  for (var i = 0, l = data.length; i < l; i++) {
-    var chr = data.charAt(i);
-
-    if (':' != chr) {
-      length += chr;
-    } else {
-      if ('' == length || (length != (n = Number(length)))) {
-        // parser error - ignoring payload
-        return callback(err, 0, 1);
-      }
-
-      msg = data.substr(i + 1, n);
-
-      if (length != msg.length) {
-        // parser error - ignoring payload
-        return callback(err, 0, 1);
-      }
-
-      if (msg.length) {
-        packet = exports.decodePacket(msg, binaryType, true);
-
-        if (err.type == packet.type && err.data == packet.data) {
-          // parser error in individual packet - ignoring payload
-          return callback(err, 0, 1);
-        }
-
-        var ret = callback(packet, i + n, l);
-        if (false === ret) return;
-      }
-
-      // advance cursor
-      i += n;
-      length = '';
-    }
-  }
-
-  if (length != '') {
-    // parser error - ignoring payload
-    return callback(err, 0, 1);
-  }
-
-};
-
-/**
- * Encodes multiple messages (payload) as binary.
- *
- * <1 = binary, 0 = string><number from 0-9><number from 0-9>[...]<number
- * 255><data>
- *
- * Example:
- * 1 3 255 1 2 3, if the binary contents are interpreted as 8 bit integers
- *
- * @param {Array} packets
- * @return {ArrayBuffer} encoded payload
- * @api private
- */
-
-exports.encodePayloadAsArrayBuffer = function(packets, callback) {
-  if (!packets.length) {
-    return callback(new ArrayBuffer(0));
-  }
-
-  function encodeOne(packet, doneCallback) {
-    exports.encodePacket(packet, true, true, function(data) {
-      return doneCallback(null, data);
-    });
-  }
-
-  map(packets, encodeOne, function(err, encodedPackets) {
-    var totalLength = encodedPackets.reduce(function(acc, p) {
-      var len;
-      if (typeof p === 'string'){
-        len = p.length;
-      } else {
-        len = p.byteLength;
-      }
-      return acc + len.toString().length + len + 2; // string/binary identifier + separator = 2
-    }, 0);
-
-    var resultArray = new Uint8Array(totalLength);
-
-    var bufferIndex = 0;
-    encodedPackets.forEach(function(p) {
-      var isString = typeof p === 'string';
-      var ab = p;
-      if (isString) {
-        var view = new Uint8Array(p.length);
-        for (var i = 0; i < p.length; i++) {
-          view[i] = p.charCodeAt(i);
-        }
-        ab = view.buffer;
-      }
-
-      if (isString) { // not true binary
-        resultArray[bufferIndex++] = 0;
-      } else { // true binary
-        resultArray[bufferIndex++] = 1;
-      }
-
-      var lenStr = ab.byteLength.toString();
-      for (var i = 0; i < lenStr.length; i++) {
-        resultArray[bufferIndex++] = parseInt(lenStr[i]);
-      }
-      resultArray[bufferIndex++] = 255;
-
-      var view = new Uint8Array(ab);
-      for (var i = 0; i < view.length; i++) {
-        resultArray[bufferIndex++] = view[i];
-      }
-    });
-
-    return callback(resultArray.buffer);
-  });
-};
-
-/**
- * Encode as Blob
- */
-
-exports.encodePayloadAsBlob = function(packets, callback) {
-  function encodeOne(packet, doneCallback) {
-    exports.encodePacket(packet, true, true, function(encoded) {
-      var binaryIdentifier = new Uint8Array(1);
-      binaryIdentifier[0] = 1;
-      if (typeof encoded === 'string') {
-        var view = new Uint8Array(encoded.length);
-        for (var i = 0; i < encoded.length; i++) {
-          view[i] = encoded.charCodeAt(i);
-        }
-        encoded = view.buffer;
-        binaryIdentifier[0] = 0;
-      }
-
-      var len = (encoded instanceof ArrayBuffer)
-        ? encoded.byteLength
-        : encoded.size;
-
-      var lenStr = len.toString();
-      var lengthAry = new Uint8Array(lenStr.length + 1);
-      for (var i = 0; i < lenStr.length; i++) {
-        lengthAry[i] = parseInt(lenStr[i]);
-      }
-      lengthAry[lenStr.length] = 255;
-
-      if (Blob) {
-        var blob = new Blob([binaryIdentifier.buffer, lengthAry.buffer, encoded]);
-        doneCallback(null, blob);
-      }
-    });
-  }
-
-  map(packets, encodeOne, function(err, results) {
-    return callback(new Blob(results));
-  });
-};
-
-/*
- * Decodes data when a payload is maybe expected. Strings are decoded by
- * interpreting each byte as a key code for entries marked to start with 0. See
- * description of encodePayloadAsBinary
- *
- * @param {ArrayBuffer} data, callback method
- * @api public
- */
-
-exports.decodePayloadAsBinary = function (data, binaryType, callback) {
-  if (typeof binaryType === 'function') {
-    callback = binaryType;
-    binaryType = null;
-  }
-
-  var bufferTail = data;
-  var buffers = [];
-
-  var numberTooLong = false;
-  while (bufferTail.byteLength > 0) {
-    var tailArray = new Uint8Array(bufferTail);
-    var isString = tailArray[0] === 0;
-    var msgLength = '';
-
-    for (var i = 1; ; i++) {
-      if (tailArray[i] == 255) break;
-
-      if (msgLength.length > 310) {
-        numberTooLong = true;
-        break;
-      }
-
-      msgLength += tailArray[i];
-    }
-
-    if(numberTooLong) return callback(err, 0, 1);
-
-    bufferTail = sliceBuffer(bufferTail, 2 + msgLength.length);
-    msgLength = parseInt(msgLength);
-
-    var msg = sliceBuffer(bufferTail, 0, msgLength);
-    if (isString) {
-      try {
-        msg = String.fromCharCode.apply(null, new Uint8Array(msg));
-      } catch (e) {
-        // iPhone Safari doesn't let you apply to typed arrays
-        var typed = new Uint8Array(msg);
-        msg = '';
-        for (var i = 0; i < typed.length; i++) {
-          msg += String.fromCharCode(typed[i]);
-        }
-      }
-    }
-
-    buffers.push(msg);
-    bufferTail = sliceBuffer(bufferTail, msgLength);
-  }
-
-  var total = buffers.length;
-  buffers.forEach(function(buffer, i) {
-    callback(exports.decodePacket(buffer, binaryType, true), i, total);
-  });
-};
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{"./keys":28,"after":6,"arraybuffer.slice":7,"base64-arraybuffer":9,"blob":10,"has-binary":29,"utf8":52}],28:[function(require,module,exports){
-
-/**
- * Gets the keys for an object.
- *
- * @return {Array} keys
- * @api private
- */
-
-module.exports = Object.keys || function keys (obj){
-  var arr = [];
-  var has = Object.prototype.hasOwnProperty;
-
-  for (var i in obj) {
-    if (has.call(obj, i)) {
-      arr.push(i);
-    }
-  }
-  return arr;
-};
-
-},{}],29:[function(require,module,exports){
-(function (global){
-
-/*
- * Module requirements.
- */
-
-var isArray = require('isarray');
-
-/**
- * Module exports.
- */
-
-module.exports = hasBinary;
-
-/**
- * Checks for binary data.
- *
- * Right now only Buffer and ArrayBuffer are supported..
- *
- * @param {Object} anything
- * @api public
- */
-
-function hasBinary(data) {
-
-  function _hasBinary(obj) {
-    if (!obj) return false;
-
-    if ( (global.Buffer && global.Buffer.isBuffer(obj)) ||
-         (global.ArrayBuffer && obj instanceof ArrayBuffer) ||
-         (global.Blob && obj instanceof Blob) ||
-         (global.File && obj instanceof File)
-        ) {
-      return true;
-    }
-
-    if (isArray(obj)) {
-      for (var i = 0; i < obj.length; i++) {
-          if (_hasBinary(obj[i])) {
-              return true;
-          }
-      }
-    } else if (obj && 'object' == typeof obj) {
-      if (obj.toJSON) {
-        obj = obj.toJSON();
-      }
-
-      for (var key in obj) {
-        if (Object.prototype.hasOwnProperty.call(obj, key) && _hasBinary(obj[key])) {
-          return true;
-        }
-      }
-    }
-
-    return false;
-  }
-
-  return _hasBinary(data);
-}
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{"isarray":30}],30:[function(require,module,exports){
-module.exports = Array.isArray || function (arr) {
-  return Object.prototype.toString.call(arr) == '[object Array]';
-};
-
-},{}],31:[function(require,module,exports){
-(function (global){
-
-/*
- * Module requirements.
- */
-
-var isArray = require('isarray');
-
-/**
- * Module exports.
- */
-
-module.exports = hasBinary;
-
-/**
- * Checks for binary data.
- *
- * Right now only Buffer and ArrayBuffer are supported..
- *
- * @param {Object} anything
- * @api public
- */
-
-function hasBinary(data) {
-
-  function _hasBinary(obj) {
-    if (!obj) return false;
-
-    if ( (global.Buffer && global.Buffer.isBuffer && global.Buffer.isBuffer(obj)) ||
-         (global.ArrayBuffer && obj instanceof ArrayBuffer) ||
-         (global.Blob && obj instanceof Blob) ||
-         (global.File && obj instanceof File)
-        ) {
-      return true;
-    }
-
-    if (isArray(obj)) {
-      for (var i = 0; i < obj.length; i++) {
-          if (_hasBinary(obj[i])) {
-              return true;
-          }
-      }
-    } else if (obj && 'object' == typeof obj) {
-      // see: https://github.com/Automattic/has-binary/pull/4
-      if (obj.toJSON && 'function' == typeof obj.toJSON) {
-        obj = obj.toJSON();
-      }
-
-      for (var key in obj) {
-        if (Object.prototype.hasOwnProperty.call(obj, key) && _hasBinary(obj[key])) {
-          return true;
-        }
-      }
-    }
-
-    return false;
-  }
-
-  return _hasBinary(data);
-}
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{"isarray":32}],32:[function(require,module,exports){
-arguments[4][30][0].apply(exports,arguments)
-},{"dup":30}],33:[function(require,module,exports){
-
-/**
- * Module exports.
- *
- * Logic borrowed from Modernizr:
- *
- *   - https://github.com/Modernizr/Modernizr/blob/master/feature-detects/cors.js
- */
-
-try {
-  module.exports = typeof XMLHttpRequest !== 'undefined' &&
-    'withCredentials' in new XMLHttpRequest();
-} catch (err) {
-  // if XMLHttp support is disabled in IE then it will throw
-  // when trying to create
-  module.exports = false;
-}
-
-},{}],34:[function(require,module,exports){
-
-var indexOf = [].indexOf;
-
-module.exports = function(arr, obj){
-  if (indexOf) return arr.indexOf(obj);
-  for (var i = 0; i < arr.length; ++i) {
-    if (arr[i] === obj) return i;
-  }
-  return -1;
-};
-},{}],35:[function(require,module,exports){
-;(function (global, factory) { // eslint-disable-line
-	"use strict"
-	/* eslint-disable no-undef */
-	var m = factory(global)
-	if (typeof module === "object" && module != null && module.exports) {
-		module.exports = m
-	} else if (typeof define === "function" && define.amd) {
-		define(function () { return m })
-	} else {
-		global.m = m
-	}
-	/* eslint-enable no-undef */
-})(typeof window !== "undefined" ? window : {}, function (global, undefined) { // eslint-disable-line
-	"use strict"
-
-	m.version = function () {
-		return "v0.2.3"
-	}
-
-	var hasOwn = {}.hasOwnProperty
-	var type = {}.toString
-
-	function isFunction(object) {
-		return typeof object === "function"
-	}
-
-	function isObject(object) {
-		return type.call(object) === "[object Object]"
-	}
-
-	function isString(object) {
-		return type.call(object) === "[object String]"
-	}
-
-	var isArray = Array.isArray || function (object) {
-		return type.call(object) === "[object Array]"
-	}
-
-	function noop() {}
-
-	var voidElements = {
-		AREA: 1,
-		BASE: 1,
-		BR: 1,
-		COL: 1,
-		COMMAND: 1,
-		EMBED: 1,
-		HR: 1,
-		IMG: 1,
-		INPUT: 1,
-		KEYGEN: 1,
-		LINK: 1,
-		META: 1,
-		PARAM: 1,
-		SOURCE: 1,
-		TRACK: 1,
-		WBR: 1
-	}
-
-	// caching commonly used variables
-	var $document, $location, $requestAnimationFrame, $cancelAnimationFrame
-
-	// self invoking function needed because of the way mocks work
-	function initialize(mock) {
-		$document = mock.document
-		$location = mock.location
-		$cancelAnimationFrame = mock.cancelAnimationFrame || mock.clearTimeout
-		$requestAnimationFrame = mock.requestAnimationFrame || mock.setTimeout
-	}
-
-	// testing API
-	m.deps = function (mock) {
-		initialize(global = mock || window)
-		return global
-	}
-
-	m.deps(global)
-
-	/**
-	 * @typedef {String} Tag
-	 * A string that looks like -> div.classname#id[param=one][param2=two]
-	 * Which describes a DOM node
-	 */
-
-	function parseTagAttrs(cell, tag) {
-		var classes = []
-		var parser = /(?:(^|#|\.)([^#\.\[\]]+))|(\[.+?\])/g
-		var match
-
-		while ((match = parser.exec(tag))) {
-			if (match[1] === "" && match[2]) {
-				cell.tag = match[2]
-			} else if (match[1] === "#") {
-				cell.attrs.id = match[2]
-			} else if (match[1] === ".") {
-				classes.push(match[2])
-			} else if (match[3][0] === "[") {
-				var pair = /\[(.+?)(?:=("|'|)(.*?)\2)?\]/.exec(match[3])
-				cell.attrs[pair[1]] = pair[3] || (pair[2] ? "" : true)
-			}
-		}
-
-		return classes
-	}
-
-	function getVirtualChildren(args, hasAttrs) {
-		var children = hasAttrs ? args.slice(1) : args
-
-		if (children.length === 1 && isArray(children[0])) {
-			return children[0]
-		} else {
-			return children
-		}
-	}
-
-	function assignAttrs(target, attrs, classes) {
-		var classAttr = "class" in attrs ? "class" : "className"
-
-		for (var attrName in attrs) {
-			if (hasOwn.call(attrs, attrName)) {
-				if (attrName === classAttr &&
-						attrs[attrName] != null &&
-						attrs[attrName] !== "") {
-					classes.push(attrs[attrName])
-					// create key in correct iteration order
-					target[attrName] = ""
-				} else {
-					target[attrName] = attrs[attrName]
-				}
-			}
-		}
-
-		if (classes.length) target[classAttr] = classes.join(" ")
-	}
-
-	/**
-	 *
-	 * @param {Tag} The DOM node tag
-	 * @param {Object=[]} optional key-value pairs to be mapped to DOM attrs
-	 * @param {...mNode=[]} Zero or more Mithril child nodes. Can be an array,
-	 *                      or splat (optional)
-	 */
-	function m(tag, pairs) {
-		var args = [].slice.call(arguments, 1)
-
-		if (isObject(tag)) return parameterize(tag, args)
-
-		if (!isString(tag)) {
-			throw new Error("selector in m(selector, attrs, children) should " +
-				"be a string")
-		}
-
-		var hasAttrs = pairs != null && isObject(pairs) &&
-			!("tag" in pairs || "view" in pairs || "subtree" in pairs)
-
-		var attrs = hasAttrs ? pairs : {}
-		var cell = {
-			tag: "div",
-			attrs: {},
-			children: getVirtualChildren(args, hasAttrs)
-		}
-
-		assignAttrs(cell.attrs, attrs, parseTagAttrs(cell, tag))
-		return cell
-	}
-
-	function forEach(list, f) {
-		for (var i = 0; i < list.length && !f(list[i], i++);) {
-			// function called in condition
-		}
-	}
-
-	function forKeys(list, f) {
-		forEach(list, function (attrs, i) {
-			return (attrs = attrs && attrs.attrs) &&
-				attrs.key != null &&
-				f(attrs, i)
-		})
-	}
-	// This function was causing deopts in Chrome.
-	function dataToString(data) {
-		// data.toString() might throw or return null if data is the return
-		// value of Console.log in some versions of Firefox (behavior depends on
-		// version)
-		try {
-			if (data != null && data.toString() != null) return data
-		} catch (e) {
-			// silently ignore errors
-		}
-		return ""
-	}
-
-	// This function was causing deopts in Chrome.
-	function injectTextNode(parentElement, first, index, data) {
-		try {
-			insertNode(parentElement, first, index)
-			first.nodeValue = data
-		} catch (e) {
-			// IE erroneously throws error when appending an empty text node
-			// after a null
-		}
-	}
-
-	function flatten(list) {
-		// recursively flatten array
-		for (var i = 0; i < list.length; i++) {
-			if (isArray(list[i])) {
-				list = list.concat.apply([], list)
-				// check current index again and flatten until there are no more
-				// nested arrays at that index
-				i--
-			}
-		}
-		return list
-	}
-
-	function insertNode(parentElement, node, index) {
-		parentElement.insertBefore(node,
-			parentElement.childNodes[index] || null)
-	}
-
-	var DELETION = 1
-	var INSERTION = 2
-	var MOVE = 3
-
-	function handleKeysDiffer(data, existing, cached, parentElement) {
-		forKeys(data, function (key, i) {
-			existing[key = key.key] = existing[key] ? {
-				action: MOVE,
-				index: i,
-				from: existing[key].index,
-				element: cached.nodes[existing[key].index] ||
-					$document.createElement("div")
-			} : {action: INSERTION, index: i}
-		})
-
-		var actions = []
-		for (var prop in existing) if (hasOwn.call(existing, prop)) {
-			actions.push(existing[prop])
-		}
-
-		var changes = actions.sort(sortChanges)
-		var newCached = new Array(cached.length)
-
-		newCached.nodes = cached.nodes.slice()
-
-		forEach(changes, function (change) {
-			var index = change.index
-			if (change.action === DELETION) {
-				clear(cached[index].nodes, cached[index])
-				newCached.splice(index, 1)
-			}
-			if (change.action === INSERTION) {
-				var dummy = $document.createElement("div")
-				dummy.key = data[index].attrs.key
-				insertNode(parentElement, dummy, index)
-				newCached.splice(index, 0, {
-					attrs: {key: data[index].attrs.key},
-					nodes: [dummy]
-				})
-				newCached.nodes[index] = dummy
-			}
-
-			if (change.action === MOVE) {
-				var changeElement = change.element
-				var maybeChanged = parentElement.childNodes[index]
-				if (maybeChanged !== changeElement && changeElement !== null) {
-					parentElement.insertBefore(changeElement,
-						maybeChanged || null)
-				}
-				newCached[index] = cached[change.from]
-				newCached.nodes[index] = changeElement
-			}
-		})
-
-		return newCached
-	}
-
-	function diffKeys(data, cached, existing, parentElement) {
-		var keysDiffer = data.length !== cached.length
-
-		if (!keysDiffer) {
-			forKeys(data, function (attrs, i) {
-				var cachedCell = cached[i]
-				return keysDiffer = cachedCell &&
-					cachedCell.attrs &&
-					cachedCell.attrs.key !== attrs.key
-			})
-		}
-
-		if (keysDiffer) {
-			return handleKeysDiffer(data, existing, cached, parentElement)
-		} else {
-			return cached
-		}
-	}
-
-	function diffArray(data, cached, nodes) {
-		// diff the array itself
-
-		// update the list of DOM nodes by collecting the nodes from each item
-		forEach(data, function (_, i) {
-			if (cached[i] != null) nodes.push.apply(nodes, cached[i].nodes)
-		})
-		// remove items from the end of the array if the new array is shorter
-		// than the old one. if errors ever happen here, the issue is most
-		// likely a bug in the construction of the `cached` data structure
-		// somewhere earlier in the program
-		forEach(cached.nodes, function (node, i) {
-			if (node.parentNode != null && nodes.indexOf(node) < 0) {
-				clear([node], [cached[i]])
-			}
-		})
-
-		if (data.length < cached.length) cached.length = data.length
-		cached.nodes = nodes
-	}
-
-	function buildArrayKeys(data) {
-		var guid = 0
-		forKeys(data, function () {
-			forEach(data, function (attrs) {
-				if ((attrs = attrs && attrs.attrs) && attrs.key == null) {
-					attrs.key = "__mithril__" + guid++
-				}
-			})
-			return 1
-		})
-	}
-
-	function isDifferentEnough(data, cached, dataAttrKeys) {
-		if (data.tag !== cached.tag) return true
-
-		if (dataAttrKeys.sort().join() !==
-				Object.keys(cached.attrs).sort().join()) {
-			return true
-		}
-
-		if (data.attrs.id !== cached.attrs.id) {
-			return true
-		}
-
-		if (data.attrs.key !== cached.attrs.key) {
-			return true
-		}
-
-		if (m.redraw.strategy() === "all") {
-			return !cached.configContext || cached.configContext.retain !== true
-		}
-
-		if (m.redraw.strategy() === "diff") {
-			return cached.configContext && cached.configContext.retain === false
-		}
-
-		return false
-	}
-
-	function maybeRecreateObject(data, cached, dataAttrKeys) {
-		// if an element is different enough from the one in cache, recreate it
-		if (isDifferentEnough(data, cached, dataAttrKeys)) {
-			if (cached.nodes.length) clear(cached.nodes)
-
-			if (cached.configContext &&
-					isFunction(cached.configContext.onunload)) {
-				cached.configContext.onunload()
-			}
-
-			if (cached.controllers) {
-				forEach(cached.controllers, function (controller) {
-					if (controller.onunload) controller.onunload({preventDefault: noop});
-				});
-			}
-		}
-	}
-
-	function getObjectNamespace(data, namespace) {
-		if (data.attrs.xmlns) return data.attrs.xmlns
-		if (data.tag === "svg") return "http://www.w3.org/2000/svg"
-		if (data.tag === "math") return "http://www.w3.org/1998/Math/MathML"
-		return namespace
-	}
-
-	var pendingRequests = 0
-	m.startComputation = function () { pendingRequests++ }
-	m.endComputation = function () {
-		if (pendingRequests > 1) {
-			pendingRequests--
-		} else {
-			pendingRequests = 0
-			m.redraw()
-		}
-	}
-
-	function unloadCachedControllers(cached, views, controllers) {
-		if (controllers.length) {
-			cached.views = views
-			cached.controllers = controllers
-			forEach(controllers, function (controller) {
-				if (controller.onunload && controller.onunload.$old) {
-					controller.onunload = controller.onunload.$old
-				}
-
-				if (pendingRequests && controller.onunload) {
-					var onunload = controller.onunload
-					controller.onunload = noop
-					controller.onunload.$old = onunload
-				}
-			})
-		}
-	}
-
-	function scheduleConfigsToBeCalled(configs, data, node, isNew, cached) {
-		// schedule configs to be called. They are called after `build` finishes
-		// running
-		if (isFunction(data.attrs.config)) {
-			var context = cached.configContext = cached.configContext || {}
-
-			// bind
-			configs.push(function () {
-				return data.attrs.config.call(data, node, !isNew, context,
-					cached)
-			})
-		}
-	}
-
-	function buildUpdatedNode(
-		cached,
-		data,
-		editable,
-		hasKeys,
-		namespace,
-		views,
-		configs,
-		controllers
-	) {
-		var node = cached.nodes[0]
-
-		if (hasKeys) {
-			setAttributes(node, data.tag, data.attrs, cached.attrs, namespace)
-		}
-
-		cached.children = build(
-			node,
-			data.tag,
-			undefined,
-			undefined,
-			data.children,
-			cached.children,
-			false,
-			0,
-			data.attrs.contenteditable ? node : editable,
-			namespace,
-			configs
-		)
-
-		cached.nodes.intact = true
-
-		if (controllers.length) {
-			cached.views = views
-			cached.controllers = controllers
-		}
-
-		return node
-	}
-
-	function handleNonexistentNodes(data, parentElement, index) {
-		var nodes
-		if (data.$trusted) {
-			nodes = injectHTML(parentElement, index, data)
-		} else {
-			nodes = [$document.createTextNode(data)]
-			if (!(parentElement.nodeName in voidElements)) {
-				insertNode(parentElement, nodes[0], index)
-			}
-		}
-
-		var cached
-
-		if (typeof data === "string" ||
-				typeof data === "number" ||
-				typeof data === "boolean") {
-			cached = new data.constructor(data)
-		} else {
-			cached = data
-		}
-
-		cached.nodes = nodes
-		return cached
-	}
-
-	function reattachNodes(
-		data,
-		cached,
-		parentElement,
-		editable,
-		index,
-		parentTag
-	) {
-		var nodes = cached.nodes
-		if (!editable || editable !== $document.activeElement) {
-			if (data.$trusted) {
-				clear(nodes, cached)
-				nodes = injectHTML(parentElement, index, data)
-			} else if (parentTag === "textarea") {
-				// <textarea> uses `value` instead of `nodeValue`.
-				parentElement.value = data
-			} else if (editable) {
-				// contenteditable nodes use `innerHTML` instead of `nodeValue`.
-				editable.innerHTML = data
-			} else {
-				// was a trusted string
-				if (nodes[0].nodeType === 1 || nodes.length > 1 ||
-						(nodes[0].nodeValue.trim &&
-							!nodes[0].nodeValue.trim())) {
-					clear(cached.nodes, cached)
-					nodes = [$document.createTextNode(data)]
-				}
-
-				injectTextNode(parentElement, nodes[0], index, data)
-			}
-		}
-		cached = new data.constructor(data)
-		cached.nodes = nodes
-		return cached
-	}
-
-	function handleTextNode(
-		cached,
-		data,
-		index,
-		parentElement,
-		shouldReattach,
-		editable,
-		parentTag
-	) {
-		if (!cached.nodes.length) {
-			return handleNonexistentNodes(data, parentElement, index)
-		} else if (cached.valueOf() !== data.valueOf() || shouldReattach) {
-			return reattachNodes(data, cached, parentElement, editable, index,
-				parentTag)
-		} else {
-			return (cached.nodes.intact = true, cached)
-		}
-	}
-
-	function getSubArrayCount(item) {
-		if (item.$trusted) {
-			// fix offset of next element if item was a trusted string w/ more
-			// than one html element
-			// the first clause in the regexp matches elements
-			// the second clause (after the pipe) matches text nodes
-			var match = item.match(/<[^\/]|\>\s*[^<]/g)
-			if (match != null) return match.length
-		} else if (isArray(item)) {
-			return item.length
-		}
-		return 1
-	}
-
-	function buildArray(
-		data,
-		cached,
-		parentElement,
-		index,
-		parentTag,
-		shouldReattach,
-		editable,
-		namespace,
-		configs
-	) {
-		data = flatten(data)
-		var nodes = []
-		var intact = cached.length === data.length
-		var subArrayCount = 0
-
-		// keys algorithm: sort elements without recreating them if keys are
-		// present
-		//
-		// 1) create a map of all existing keys, and mark all for deletion
-		// 2) add new keys to map and mark them for addition
-		// 3) if key exists in new list, change action from deletion to a move
-		// 4) for each key, handle its corresponding action as marked in
-		//    previous steps
-
-		var existing = {}
-		var shouldMaintainIdentities = false
-
-		forKeys(cached, function (attrs, i) {
-			shouldMaintainIdentities = true
-			existing[cached[i].attrs.key] = {action: DELETION, index: i}
-		})
-
-		buildArrayKeys(data)
-		if (shouldMaintainIdentities) {
-			cached = diffKeys(data, cached, existing, parentElement)
-		}
-		// end key algorithm
-
-		var cacheCount = 0
-		// faster explicitly written
-		for (var i = 0, len = data.length; i < len; i++) {
-			// diff each item in the array
-			var item = build(
-				parentElement,
-				parentTag,
-				cached,
-				index,
-				data[i],
-				cached[cacheCount],
-				shouldReattach,
-				index + subArrayCount || subArrayCount,
-				editable,
-				namespace,
-				configs)
-
-			if (item !== undefined) {
-				intact = intact && item.nodes.intact
-				subArrayCount += getSubArrayCount(item)
-				cached[cacheCount++] = item
-			}
-		}
-
-		if (!intact) diffArray(data, cached, nodes)
-		return cached
-	}
-
-	function makeCache(data, cached, index, parentIndex, parentCache) {
-		if (cached != null) {
-			if (type.call(cached) === type.call(data)) return cached
-
-			if (parentCache && parentCache.nodes) {
-				var offset = index - parentIndex
-				var end = offset + (isArray(data) ? data : cached.nodes).length
-				clear(
-					parentCache.nodes.slice(offset, end),
-					parentCache.slice(offset, end))
-			} else if (cached.nodes) {
-				clear(cached.nodes, cached)
-			}
-		}
-
-		cached = new data.constructor()
-		// if constructor creates a virtual dom element, use a blank object as
-		// the base cached node instead of copying the virtual el (#277)
-		if (cached.tag) cached = {}
-		cached.nodes = []
-		return cached
-	}
-
-	function constructNode(data, namespace) {
-		if (data.attrs.is) {
-			if (namespace == null) {
-				return $document.createElement(data.tag, data.attrs.is)
-			} else {
-				return $document.createElementNS(namespace, data.tag,
-					data.attrs.is)
-			}
-		} else if (namespace == null) {
-			return $document.createElement(data.tag)
-		} else {
-			return $document.createElementNS(namespace, data.tag)
-		}
-	}
-
-	function constructAttrs(data, node, namespace, hasKeys) {
-		if (hasKeys) {
-			return setAttributes(node, data.tag, data.attrs, {}, namespace)
-		} else {
-			return data.attrs
-		}
-	}
-
-	function constructChildren(
-		data,
-		node,
-		cached,
-		editable,
-		namespace,
-		configs
-	) {
-		if (data.children != null && data.children.length > 0) {
-			return build(
-				node,
-				data.tag,
-				undefined,
-				undefined,
-				data.children,
-				cached.children,
-				true,
-				0,
-				data.attrs.contenteditable ? node : editable,
-				namespace,
-				configs)
-		} else {
-			return data.children
-		}
-	}
-
-	function reconstructCached(
-		data,
-		attrs,
-		children,
-		node,
-		namespace,
-		views,
-		controllers
-	) {
-		var cached = {
-			tag: data.tag,
-			attrs: attrs,
-			children: children,
-			nodes: [node]
-		}
-
-		unloadCachedControllers(cached, views, controllers)
-
-		if (cached.children && !cached.children.nodes) {
-			cached.children.nodes = []
-		}
-
-		// edge case: setting value on <select> doesn't work before children
-		// exist, so set it again after children have been created
-		if (data.tag === "select" && "value" in data.attrs) {
-			setAttributes(node, data.tag, {value: data.attrs.value}, {},
-				namespace)
-		}
-
-		return cached
-	}
-
-	function getController(views, view, cachedControllers, controller) {
-		var controllerIndex
-
-		if (m.redraw.strategy() === "diff" && views) {
-			controllerIndex = views.indexOf(view)
-		} else {
-			controllerIndex = -1
-		}
-
-		if (controllerIndex > -1) {
-			return cachedControllers[controllerIndex]
-		} else if (isFunction(controller)) {
-			return new controller()
-		} else {
-			return {}
-		}
-	}
-
-	var unloaders = []
-
-	function updateLists(views, controllers, view, controller) {
-		if (controller.onunload != null && unloaders.map(function(u) {return u.handler}).indexOf(controller.onunload) < 0) {
-			unloaders.push({
-				controller: controller,
-				handler: controller.onunload
-			})
-		}
-
-		views.push(view)
-		controllers.push(controller)
-	}
-
-	var forcing = false
-	function checkView(data, view, cached, cachedControllers, controllers, views) {
-		var controller = getController(cached.views, view, cachedControllers, data.controller)
-		var key = data && data.attrs && data.attrs.key
-		data = pendingRequests === 0 || forcing || cachedControllers && cachedControllers.indexOf(controller) > -1 ? data.view(controller) : {tag: "placeholder"}
-		if (data.subtree === "retain") return data;
-		data.attrs = data.attrs || {}
-		data.attrs.key = key
-		updateLists(views, controllers, view, controller)
-		return data
-	}
-
-	function markViews(data, cached, views, controllers) {
-		var cachedControllers = cached && cached.controllers
-
-		while (data.view != null) {
-			data = checkView(
-				data,
-				data.view.$original || data.view,
-				cached,
-				cachedControllers,
-				controllers,
-				views)
-		}
-
-		return data
-	}
-
-	function buildObject( // eslint-disable-line max-statements
-		data,
-		cached,
-		editable,
-		parentElement,
-		index,
-		shouldReattach,
-		namespace,
-		configs
-	) {
-		var views = []
-		var controllers = []
-
-		data = markViews(data, cached, views, controllers)
-
-		if (data.subtree === "retain") return cached
-
-		if (!data.tag && controllers.length) {
-			throw new Error("Component template must return a virtual " +
-				"element, not an array, string, etc.")
-		}
-
-		data.attrs = data.attrs || {}
-		cached.attrs = cached.attrs || {}
-
-		var dataAttrKeys = Object.keys(data.attrs)
-		var hasKeys = dataAttrKeys.length > ("key" in data.attrs ? 1 : 0)
-
-		maybeRecreateObject(data, cached, dataAttrKeys)
-
-		if (!isString(data.tag)) return
-
-		var isNew = cached.nodes.length === 0
-
-		namespace = getObjectNamespace(data, namespace)
-
-		var node
-		if (isNew) {
-			node = constructNode(data, namespace)
-			// set attributes first, then create children
-			var attrs = constructAttrs(data, node, namespace, hasKeys)
-
-			var children = constructChildren(data, node, cached, editable,
-				namespace, configs)
-
-			cached = reconstructCached(
-				data,
-				attrs,
-				children,
-				node,
-				namespace,
-				views,
-				controllers)
-		} else {
-			node = buildUpdatedNode(
-				cached,
-				data,
-				editable,
-				hasKeys,
-				namespace,
-				views,
-				configs,
-				controllers)
-		}
-
-		if (isNew || shouldReattach === true && node != null) {
-			insertNode(parentElement, node, index)
-		}
-
-		// The configs are called after `build` finishes running
-		scheduleConfigsToBeCalled(configs, data, node, isNew, cached)
-
-		return cached
-	}
-
-	function build(
-		parentElement,
-		parentTag,
-		parentCache,
-		parentIndex,
-		data,
-		cached,
-		shouldReattach,
-		index,
-		editable,
-		namespace,
-		configs
-	) {
-		/*
-		 * `build` is a recursive function that manages creation/diffing/removal
-		 * of DOM elements based on comparison between `data` and `cached` the
-		 * diff algorithm can be summarized as this:
-		 *
-		 * 1 - compare `data` and `cached`
-		 * 2 - if they are different, copy `data` to `cached` and update the DOM
-		 *     based on what the difference is
-		 * 3 - recursively apply this algorithm for every array and for the
-		 *     children of every virtual element
-		 *
-		 * The `cached` data structure is essentially the same as the previous
-		 * redraw's `data` data structure, with a few additions:
-		 * - `cached` always has a property called `nodes`, which is a list of
-		 *    DOM elements that correspond to the data represented by the
-		 *    respective virtual element
-		 * - in order to support attaching `nodes` as a property of `cached`,
-		 *    `cached` is *always* a non-primitive object, i.e. if the data was
-		 *    a string, then cached is a String instance. If data was `null` or
-		 *    `undefined`, cached is `new String("")`
-		 * - `cached also has a `configContext` property, which is the state
-		 *    storage object exposed by config(element, isInitialized, context)
-		 * - when `cached` is an Object, it represents a virtual element; when
-		 *    it's an Array, it represents a list of elements; when it's a
-		 *    String, Number or Boolean, it represents a text node
-		 *
-		 * `parentElement` is a DOM element used for W3C DOM API calls
-		 * `parentTag` is only used for handling a corner case for textarea
-		 * values
-		 * `parentCache` is used to remove nodes in some multi-node cases
-		 * `parentIndex` and `index` are used to figure out the offset of nodes.
-		 * They're artifacts from before arrays started being flattened and are
-		 * likely refactorable
-		 * `data` and `cached` are, respectively, the new and old nodes being
-		 * diffed
-		 * `shouldReattach` is a flag indicating whether a parent node was
-		 * recreated (if so, and if this node is reused, then this node must
-		 * reattach itself to the new parent)
-		 * `editable` is a flag that indicates whether an ancestor is
-		 * contenteditable
-		 * `namespace` indicates the closest HTML namespace as it cascades down
-		 * from an ancestor
-		 * `configs` is a list of config functions to run after the topmost
-		 * `build` call finishes running
-		 *
-		 * there's logic that relies on the assumption that null and undefined
-		 * data are equivalent to empty strings
-		 * - this prevents lifecycle surprises from procedural helpers that mix
-		 *   implicit and explicit return statements (e.g.
-		 *   function foo() {if (cond) return m("div")}
-		 * - it simplifies diffing code
-		 */
-		data = dataToString(data)
-		if (data.subtree === "retain") return cached
-		cached = makeCache(data, cached, index, parentIndex, parentCache)
-
-		if (isArray(data)) {
-			return buildArray(
-				data,
-				cached,
-				parentElement,
-				index,
-				parentTag,
-				shouldReattach,
-				editable,
-				namespace,
-				configs)
-		} else if (data != null && isObject(data)) {
-			return buildObject(
-				data,
-				cached,
-				editable,
-				parentElement,
-				index,
-				shouldReattach,
-				namespace,
-				configs)
-		} else if (!isFunction(data)) {
-			return handleTextNode(
-				cached,
-				data,
-				index,
-				parentElement,
-				shouldReattach,
-				editable,
-				parentTag)
-		} else {
-			return cached
-		}
-	}
-
-	function sortChanges(a, b) {
-		return a.action - b.action || a.index - b.index
-	}
-
-	function copyStyleAttrs(node, dataAttr, cachedAttr) {
-		for (var rule in dataAttr) if (hasOwn.call(dataAttr, rule)) {
-			if (cachedAttr == null || cachedAttr[rule] !== dataAttr[rule]) {
-				node.style[rule] = dataAttr[rule]
-			}
-		}
-
-		for (rule in cachedAttr) if (hasOwn.call(cachedAttr, rule)) {
-			if (!hasOwn.call(dataAttr, rule)) node.style[rule] = ""
-		}
-	}
-
-	var shouldUseSetAttribute = {
-		list: 1,
-		style: 1,
-		form: 1,
-		type: 1,
-		width: 1,
-		height: 1
-	}
-
-	function setSingleAttr(
-		node,
-		attrName,
-		dataAttr,
-		cachedAttr,
-		tag,
-		namespace
-	) {
-		if (attrName === "config" || attrName === "key") {
-			// `config` isn't a real attribute, so ignore it
-			return true
-		} else if (isFunction(dataAttr) && attrName.slice(0, 2) === "on") {
-			// hook event handlers to the auto-redrawing system
-			node[attrName] = autoredraw(dataAttr, node)
-		} else if (attrName === "style" && dataAttr != null &&
-				isObject(dataAttr)) {
-			// handle `style: {...}`
-			copyStyleAttrs(node, dataAttr, cachedAttr)
-		} else if (namespace != null) {
-			// handle SVG
-			if (attrName === "href") {
-				node.setAttributeNS("http://www.w3.org/1999/xlink",
-					"href", dataAttr)
-			} else {
-				node.setAttribute(
-					attrName === "className" ? "class" : attrName,
-					dataAttr)
-			}
-		} else if (attrName in node && !shouldUseSetAttribute[attrName]) {
-			// handle cases that are properties (but ignore cases where we
-			// should use setAttribute instead)
-			//
-			// - list and form are typically used as strings, but are DOM
-			//   element references in js
-			//
-			// - when using CSS selectors (e.g. `m("[style='']")`), style is
-			//   used as a string, but it's an object in js
-			//
-			// #348 don't set the value if not needed - otherwise, cursor
-			// placement breaks in Chrome
-			try {
-				if (tag !== "input" || node[attrName] !== dataAttr) {
-					node[attrName] = dataAttr
-				}
-			} catch (e) {
-				node.setAttribute(attrName, dataAttr)
-			}
-		}
-		else node.setAttribute(attrName, dataAttr)
-	}
-
-	function trySetAttr(
-		node,
-		attrName,
-		dataAttr,
-		cachedAttr,
-		cachedAttrs,
-		tag,
-		namespace
-	) {
-		if (!(attrName in cachedAttrs) || (cachedAttr !== dataAttr)) {
-			cachedAttrs[attrName] = dataAttr
-			try {
-				return setSingleAttr(
-					node,
-					attrName,
-					dataAttr,
-					cachedAttr,
-					tag,
-					namespace)
-			} catch (e) {
-				// swallow IE's invalid argument errors to mimic HTML's
-				// fallback-to-doing-nothing-on-invalid-attributes behavior
-				if (e.message.indexOf("Invalid argument") < 0) throw e
-			}
-		} else if (attrName === "value" && tag === "input" &&
-				node.value !== dataAttr) {
-			// #348 dataAttr may not be a string, so use loose comparison
-			node.value = dataAttr
-		}
-	}
-
-	function setAttributes(node, tag, dataAttrs, cachedAttrs, namespace) {
-		for (var attrName in dataAttrs) if (hasOwn.call(dataAttrs, attrName)) {
-			if (trySetAttr(
-					node,
-					attrName,
-					dataAttrs[attrName],
-					cachedAttrs[attrName],
-					cachedAttrs,
-					tag,
-					namespace)) {
-				continue
-			}
-		}
-		return cachedAttrs
-	}
-
-	function clear(nodes, cached) {
-		for (var i = nodes.length - 1; i > -1; i--) {
-			if (nodes[i] && nodes[i].parentNode) {
-				try {
-					nodes[i].parentNode.removeChild(nodes[i])
-				} catch (e) {
-					/* eslint-disable max-len */
-					// ignore if this fails due to order of events (see
-					// http://stackoverflow.com/questions/21926083/failed-to-execute-removechild-on-node)
-					/* eslint-enable max-len */
-				}
-				cached = [].concat(cached)
-				if (cached[i]) unload(cached[i])
-			}
-		}
-		// release memory if nodes is an array. This check should fail if nodes
-		// is a NodeList (see loop above)
-		if (nodes.length) {
-			nodes.length = 0
-		}
-	}
-
-	function unload(cached) {
-		if (cached.configContext && isFunction(cached.configContext.onunload)) {
-			cached.configContext.onunload()
-			cached.configContext.onunload = null
-		}
-		if (cached.controllers) {
-			forEach(cached.controllers, function (controller) {
-				if (isFunction(controller.onunload)) {
-					controller.onunload({preventDefault: noop})
-				}
-			})
-		}
-		if (cached.children) {
-			if (isArray(cached.children)) forEach(cached.children, unload)
-			else if (cached.children.tag) unload(cached.children)
-		}
-	}
-
-	function appendTextFragment(parentElement, data) {
-		try {
-			parentElement.appendChild(
-				$document.createRange().createContextualFragment(data))
-		} catch (e) {
-			parentElement.insertAdjacentHTML("beforeend", data)
-		}
-	}
-
-	function injectHTML(parentElement, index, data) {
-		var nextSibling = parentElement.childNodes[index]
-		if (nextSibling) {
-			var isElement = nextSibling.nodeType !== 1
-			var placeholder = $document.createElement("span")
-			if (isElement) {
-				parentElement.insertBefore(placeholder, nextSibling || null)
-				placeholder.insertAdjacentHTML("beforebegin", data)
-				parentElement.removeChild(placeholder)
-			} else {
-				nextSibling.insertAdjacentHTML("beforebegin", data)
-			}
-		} else {
-			appendTextFragment(parentElement, data)
-		}
-
-		var nodes = []
-
-		while (parentElement.childNodes[index] !== nextSibling) {
-			nodes.push(parentElement.childNodes[index])
-			index++
-		}
-
-		return nodes
-	}
-
-	function autoredraw(callback, object) {
-		return function (e) {
-			e = e || event
-			m.redraw.strategy("diff")
-			m.startComputation()
-			try {
-				return callback.call(object, e)
-			} finally {
-				endFirstComputation()
-			}
-		}
-	}
-
-	var html
-	var documentNode = {
-		appendChild: function (node) {
-			if (html === undefined) html = $document.createElement("html")
-			if ($document.documentElement &&
-					$document.documentElement !== node) {
-				$document.replaceChild(node, $document.documentElement)
-			} else {
-				$document.appendChild(node)
-			}
-
-			this.childNodes = $document.childNodes
-		},
-
-		insertBefore: function (node) {
-			this.appendChild(node)
-		},
-
-		childNodes: []
-	}
-
-	var nodeCache = []
-	var cellCache = {}
-
-	m.render = function (root, cell, forceRecreation) {
-		if (!root) {
-			throw new Error("Ensure the DOM element being passed to " +
-				"m.route/m.mount/m.render is not undefined.")
-		}
-		var configs = []
-		var id = getCellCacheKey(root)
-		var isDocumentRoot = root === $document
-		var node
-
-		if (isDocumentRoot || root === $document.documentElement) {
-			node = documentNode
-		} else {
-			node = root
-		}
-
-		if (isDocumentRoot && cell.tag !== "html") {
-			cell = {tag: "html", attrs: {}, children: cell}
-		}
-
-		if (cellCache[id] === undefined) clear(node.childNodes)
-		if (forceRecreation === true) reset(root)
-
-		cellCache[id] = build(
-			node,
-			null,
-			undefined,
-			undefined,
-			cell,
-			cellCache[id],
-			false,
-			0,
-			null,
-			undefined,
-			configs)
-
-		forEach(configs, function (config) { config() })
-	}
-
-	function getCellCacheKey(element) {
-		var index = nodeCache.indexOf(element)
-		return index < 0 ? nodeCache.push(element) - 1 : index
-	}
-
-	m.trust = function (value) {
-		value = new String(value) // eslint-disable-line no-new-wrappers
-		value.$trusted = true
-		return value
-	}
-
-	function gettersetter(store) {
-		function prop() {
-			if (arguments.length) store = arguments[0]
-			return store
-		}
-
-		prop.toJSON = function () {
-			return store
-		}
-
-		return prop
-	}
-
-	m.prop = function (store) {
-		if ((store != null && isObject(store) || isFunction(store)) &&
-				isFunction(store.then)) {
-			return propify(store)
-		}
-
-		return gettersetter(store)
-	}
-
-	var roots = []
-	var components = []
-	var controllers = []
-	var lastRedrawId = null
-	var lastRedrawCallTime = 0
-	var computePreRedrawHook = null
-	var computePostRedrawHook = null
-	var topComponent
-	var FRAME_BUDGET = 16 // 60 frames per second = 1 call per 16 ms
-
-	function parameterize(component, args) {
-		function controller() {
-			/* eslint-disable no-invalid-this */
-			return (component.controller || noop).apply(this, args) || this
-			/* eslint-enable no-invalid-this */
-		}
-
-		if (component.controller) {
-			controller.prototype = component.controller.prototype
-		}
-
-		function view(ctrl) {
-			var currentArgs = [ctrl].concat(args)
-			for (var i = 1; i < arguments.length; i++) {
-				currentArgs.push(arguments[i])
-			}
-
-			return component.view.apply(component, currentArgs)
-		}
-
-		view.$original = component.view
-		var output = {controller: controller, view: view}
-		if (args[0] && args[0].key != null) output.attrs = {key: args[0].key}
-		return output
-	}
-
-	m.component = function (component) {
-		var args = [].slice.call(arguments, 1)
-
-		return parameterize(component, args)
-	}
-
-	function checkPrevented(component, root, index, isPrevented) {
-		if (!isPrevented) {
-			m.redraw.strategy("all")
-			m.startComputation()
-			roots[index] = root
-			var currentComponent
-
-			if (component) {
-				currentComponent = topComponent = component
-			} else {
-				currentComponent = topComponent = component = {controller: noop}
-			}
-
-			var controller = new (component.controller || noop)()
-
-			// controllers may call m.mount recursively (via m.route redirects,
-			// for example)
-			// this conditional ensures only the last recursive m.mount call is
-			// applied
-			if (currentComponent === topComponent) {
-				controllers[index] = controller
-				components[index] = component
-			}
-			endFirstComputation()
-			if (component === null) {
-				removeRootElement(root, index)
-			}
-			return controllers[index]
-		} else if (component == null) {
-			removeRootElement(root, index)
-		}
-	}
-
-	m.mount = m.module = function (root, component) {
-		if (!root) {
-			throw new Error("Please ensure the DOM element exists before " +
-				"rendering a template into it.")
-		}
-
-		var index = roots.indexOf(root)
-		if (index < 0) index = roots.length
-
-		var isPrevented = false
-		var event = {
-			preventDefault: function () {
-				isPrevented = true
-				computePreRedrawHook = computePostRedrawHook = null
-			}
-		}
-
-		forEach(unloaders, function (unloader) {
-			unloader.handler.call(unloader.controller, event)
-			unloader.controller.onunload = null
-		})
-
-		if (isPrevented) {
-			forEach(unloaders, function (unloader) {
-				unloader.controller.onunload = unloader.handler
-			})
-		} else {
-			unloaders = []
-		}
-
-		if (controllers[index] && isFunction(controllers[index].onunload)) {
-			controllers[index].onunload(event)
-		}
-
-		return checkPrevented(component, root, index, isPrevented)
-	}
-
-	function removeRootElement(root, index) {
-		roots.splice(index, 1)
-		controllers.splice(index, 1)
-		components.splice(index, 1)
-		reset(root)
-		nodeCache.splice(getCellCacheKey(root), 1)
-	}
-
-	var redrawing = false
-	m.redraw = function (force) {
-		if (redrawing) return
-		redrawing = true
-		if (force) forcing = true
-
-		try {
-			// lastRedrawId is a positive number if a second redraw is requested
-			// before the next animation frame
-			// lastRedrawID is null if it's the first redraw and not an event
-			// handler
-			if (lastRedrawId && !force) {
-				// when setTimeout: only reschedule redraw if time between now
-				// and previous redraw is bigger than a frame, otherwise keep
-				// currently scheduled timeout
-				// when rAF: always reschedule redraw
-				if ($requestAnimationFrame === global.requestAnimationFrame ||
-						new Date() - lastRedrawCallTime > FRAME_BUDGET) {
-					if (lastRedrawId > 0) $cancelAnimationFrame(lastRedrawId)
-					lastRedrawId = $requestAnimationFrame(redraw, FRAME_BUDGET)
-				}
-			} else {
-				redraw()
-				lastRedrawId = $requestAnimationFrame(function () {
-					lastRedrawId = null
-				}, FRAME_BUDGET)
-			}
-		} finally {
-			redrawing = forcing = false
-		}
-	}
-
-	m.redraw.strategy = m.prop()
-	function redraw() {
-		if (computePreRedrawHook) {
-			computePreRedrawHook()
-			computePreRedrawHook = null
-		}
-		forEach(roots, function (root, i) {
-			var component = components[i]
-			if (controllers[i]) {
-				var args = [controllers[i]]
-				m.render(root,
-					component.view ? component.view(controllers[i], args) : "")
-			}
-		})
-		// after rendering within a routed context, we need to scroll back to
-		// the top, and fetch the document title for history.pushState
-		if (computePostRedrawHook) {
-			computePostRedrawHook()
-			computePostRedrawHook = null
-		}
-		lastRedrawId = null
-		lastRedrawCallTime = new Date()
-		m.redraw.strategy("diff")
-	}
-
-	function endFirstComputation() {
-		if (m.redraw.strategy() === "none") {
-			pendingRequests--
-			m.redraw.strategy("diff")
-		} else {
-			m.endComputation()
-		}
-	}
-
-	m.withAttr = function (prop, withAttrCallback, callbackThis) {
-		return function (e) {
-			e = e || event
-			/* eslint-disable no-invalid-this */
-			var currentTarget = e.currentTarget || this
-			var _this = callbackThis || this
-			/* eslint-enable no-invalid-this */
-			var target = prop in currentTarget ?
-				currentTarget[prop] :
-				currentTarget.getAttribute(prop)
-			withAttrCallback.call(_this, target)
-		}
-	}
-
-	// routing
-	var modes = {pathname: "", hash: "#", search: "?"}
-	var redirect = noop
-	var isDefaultRoute = false
-	var routeParams, currentRoute
-
-	m.route = function (root, arg1, arg2, vdom) { // eslint-disable-line
-		// m.route()
-		if (arguments.length === 0) return currentRoute
-		// m.route(el, defaultRoute, routes)
-		if (arguments.length === 3 && isString(arg1)) {
-			redirect = function (source) {
-				var path = currentRoute = normalizeRoute(source)
-				if (!routeByValue(root, arg2, path)) {
-					if (isDefaultRoute) {
-						throw new Error("Ensure the default route matches " +
-							"one of the routes defined in m.route")
-					}
-
-					isDefaultRoute = true
-					m.route(arg1, true)
-					isDefaultRoute = false
-				}
-			}
-
-			var listener = m.route.mode === "hash" ?
-				"onhashchange" :
-				"onpopstate"
-
-			global[listener] = function () {
-				var path = $location[m.route.mode]
-				if (m.route.mode === "pathname") path += $location.search
-				if (currentRoute !== normalizeRoute(path)) redirect(path)
-			}
-
-			computePreRedrawHook = setScroll
-			global[listener]()
-
-			return
-		}
-
-		// config: m.route
-		if (root.addEventListener || root.attachEvent) {
-			var base = m.route.mode !== "pathname" ? $location.pathname : ""
-			root.href = base + modes[m.route.mode] + vdom.attrs.href
-			if (root.addEventListener) {
-				root.removeEventListener("click", routeUnobtrusive)
-				root.addEventListener("click", routeUnobtrusive)
-			} else {
-				root.detachEvent("onclick", routeUnobtrusive)
-				root.attachEvent("onclick", routeUnobtrusive)
-			}
-
-			return
-		}
-		// m.route(route, params, shouldReplaceHistoryEntry)
-		if (isString(root)) {
-			var oldRoute = currentRoute
-			currentRoute = root
-
-			var args = arg1 || {}
-			var queryIndex = currentRoute.indexOf("?")
-			var params
-
-			if (queryIndex > -1) {
-				params = parseQueryString(currentRoute.slice(queryIndex + 1))
-			} else {
-				params = {}
-			}
-
-			for (var i in args) if (hasOwn.call(args, i)) {
-				params[i] = args[i]
-			}
-
-			var querystring = buildQueryString(params)
-			var currentPath
-
-			if (queryIndex > -1) {
-				currentPath = currentRoute.slice(0, queryIndex)
-			} else {
-				currentPath = currentRoute
-			}
-
-			if (querystring) {
-				currentRoute = currentPath +
-					(currentPath.indexOf("?") === -1 ? "?" : "&") +
-					querystring
-			}
-
-			var replaceHistory =
-				(arguments.length === 3 ? arg2 : arg1) === true ||
-				oldRoute === root
-
-			if (global.history.pushState) {
-				var method = replaceHistory ? "replaceState" : "pushState"
-				computePreRedrawHook = setScroll
-				computePostRedrawHook = function () {
-					global.history[method](null, $document.title,
-						modes[m.route.mode] + currentRoute)
-				}
-				redirect(modes[m.route.mode] + currentRoute)
-			} else {
-				$location[m.route.mode] = currentRoute
-				redirect(modes[m.route.mode] + currentRoute)
-			}
-		}
-	}
-
-	m.route.param = function (key) {
-		if (!routeParams) {
-			throw new Error("You must call m.route(element, defaultRoute, " +
-				"routes) before calling m.route.param()")
-		}
-
-		if (!key) {
-			return routeParams
-		}
-
-		return routeParams[key]
-	}
-
-	m.route.mode = "search"
-
-	function normalizeRoute(route) {
-		return route.slice(modes[m.route.mode].length)
-	}
-
-	function routeByValue(root, router, path) {
-		routeParams = {}
-
-		var queryStart = path.indexOf("?")
-		if (queryStart !== -1) {
-			routeParams = parseQueryString(
-				path.substr(queryStart + 1, path.length))
-			path = path.substr(0, queryStart)
-		}
-
-		// Get all routes and check if there's
-		// an exact match for the current path
-		var keys = Object.keys(router)
-		var index = keys.indexOf(path)
-
-		if (index !== -1){
-			m.mount(root, router[keys [index]])
-			return true
-		}
-
-		for (var route in router) if (hasOwn.call(router, route)) {
-			if (route === path) {
-				m.mount(root, router[route])
-				return true
-			}
-
-			var matcher = new RegExp("^" + route
-				.replace(/:[^\/]+?\.{3}/g, "(.*?)")
-				.replace(/:[^\/]+/g, "([^\\/]+)") + "\/?$")
-
-			if (matcher.test(path)) {
-				/* eslint-disable no-loop-func */
-				path.replace(matcher, function () {
-					var keys = route.match(/:[^\/]+/g) || []
-					var values = [].slice.call(arguments, 1, -2)
-					forEach(keys, function (key, i) {
-						routeParams[key.replace(/:|\./g, "")] =
-							decodeURIComponent(values[i])
-					})
-					m.mount(root, router[route])
-				})
-				/* eslint-enable no-loop-func */
-				return true
-			}
-		}
-	}
-
-	function routeUnobtrusive(e) {
-		e = e || event
-		if (e.ctrlKey || e.metaKey || e.shiftKey || e.which === 2) return
-
-		if (e.preventDefault) {
-			e.preventDefault()
-		} else {
-			e.returnValue = false
-		}
-
-		var currentTarget = e.currentTarget || e.srcElement
-		var args
-
-		if (m.route.mode === "pathname" && currentTarget.search) {
-			args = parseQueryString(currentTarget.search.slice(1))
-		} else {
-			args = {}
-		}
-
-		while (currentTarget && !/a/i.test(currentTarget.nodeName)) {
-			currentTarget = currentTarget.parentNode
-		}
-
-		// clear pendingRequests because we want an immediate route change
-		pendingRequests = 0
-		m.route(currentTarget[m.route.mode]
-			.slice(modes[m.route.mode].length), args)
-	}
-
-	function setScroll() {
-		if (m.route.mode !== "hash" && $location.hash) {
-			$location.hash = $location.hash
-		} else {
-			global.scrollTo(0, 0)
-		}
-	}
-
-	function buildQueryString(object, prefix) {
-		var duplicates = {}
-		var str = []
-
-		for (var prop in object) if (hasOwn.call(object, prop)) {
-			var key = prefix ? prefix + "[" + prop + "]" : prop
-			var value = object[prop]
-
-			if (value === null) {
-				str.push(encodeURIComponent(key))
-			} else if (isObject(value)) {
-				str.push(buildQueryString(value, key))
-			} else if (isArray(value)) {
-				var keys = []
-				duplicates[key] = duplicates[key] || {}
-				/* eslint-disable no-loop-func */
-				forEach(value, function (item) {
-					/* eslint-enable no-loop-func */
-					if (!duplicates[key][item]) {
-						duplicates[key][item] = true
-						keys.push(encodeURIComponent(key) + "=" +
-							encodeURIComponent(item))
-					}
-				})
-				str.push(keys.join("&"))
-			} else if (value !== undefined) {
-				str.push(encodeURIComponent(key) + "=" +
-					encodeURIComponent(value))
-			}
-		}
-		return str.join("&")
-	}
-
-	function parseQueryString(str) {
-		if (str === "" || str == null) return {}
-		if (str.charAt(0) === "?") str = str.slice(1)
-
-		var pairs = str.split("&")
-		var params = {}
-
-		forEach(pairs, function (string) {
-			var pair = string.split("=")
-			var key = decodeURIComponent(pair[0])
-			var value = pair.length === 2 ? decodeURIComponent(pair[1]) : null
-			if (params[key] != null) {
-				if (!isArray(params[key])) params[key] = [params[key]]
-				params[key].push(value)
-			}
-			else params[key] = value
-		})
-
-		return params
-	}
-
-	m.route.buildQueryString = buildQueryString
-	m.route.parseQueryString = parseQueryString
-
-	function reset(root) {
-		var cacheKey = getCellCacheKey(root)
-		clear(root.childNodes, cellCache[cacheKey])
-		cellCache[cacheKey] = undefined
-	}
-
-	m.deferred = function () {
-		var deferred = new Deferred()
-		deferred.promise = propify(deferred.promise)
-		return deferred
-	}
-
-	function propify(promise, initialValue) {
-		var prop = m.prop(initialValue)
-		promise.then(prop)
-		prop.then = function (resolve, reject) {
-			return propify(promise.then(resolve, reject), initialValue)
-		}
-
-		prop.catch = prop.then.bind(null, null)
-		return prop
-	}
-	// Promiz.mithril.js | Zolmeister | MIT
-	// a modified version of Promiz.js, which does not conform to Promises/A+
-	// for two reasons:
-	//
-	// 1) `then` callbacks are called synchronously (because setTimeout is too
-	//    slow, and the setImmediate polyfill is too big
-	//
-	// 2) throwing subclasses of Error cause the error to be bubbled up instead
-	//    of triggering rejection (because the spec does not account for the
-	//    important use case of default browser error handling, i.e. message w/
-	//    line number)
-
-	var RESOLVING = 1
-	var REJECTING = 2
-	var RESOLVED = 3
-	var REJECTED = 4
-
-	function Deferred(onSuccess, onFailure) {
-		var self = this
-		var state = 0
-		var promiseValue = 0
-		var next = []
-
-		self.promise = {}
-
-		self.resolve = function (value) {
-			if (!state) {
-				promiseValue = value
-				state = RESOLVING
-
-				fire()
-			}
-
-			return self
-		}
-
-		self.reject = function (value) {
-			if (!state) {
-				promiseValue = value
-				state = REJECTING
-
-				fire()
-			}
-
-			return self
-		}
-
-		self.promise.then = function (onSuccess, onFailure) {
-			var deferred = new Deferred(onSuccess, onFailure)
-
-			if (state === RESOLVED) {
-				deferred.resolve(promiseValue)
-			} else if (state === REJECTED) {
-				deferred.reject(promiseValue)
-			} else {
-				next.push(deferred)
-			}
-
-			return deferred.promise
-		}
-
-		function finish(type) {
-			state = type || REJECTED
-			next.map(function (deferred) {
-				if (state === RESOLVED) {
-					deferred.resolve(promiseValue)
-				} else {
-					deferred.reject(promiseValue)
-				}
-			})
-		}
-
-		function thennable(then, success, failure, notThennable) {
-			if (((promiseValue != null && isObject(promiseValue)) ||
-					isFunction(promiseValue)) && isFunction(then)) {
-				try {
-					// count protects against abuse calls from spec checker
-					var count = 0
-					then.call(promiseValue, function (value) {
-						if (count++) return
-						promiseValue = value
-						success()
-					}, function (value) {
-						if (count++) return
-						promiseValue = value
-						failure()
-					})
-				} catch (e) {
-					m.deferred.onerror(e)
-					promiseValue = e
-					failure()
-				}
-			} else {
-				notThennable()
-			}
-		}
-
-		function fire() {
-			// check if it's a thenable
-			var then
-			try {
-				then = promiseValue && promiseValue.then
-			} catch (e) {
-				m.deferred.onerror(e)
-				promiseValue = e
-				state = REJECTING
-				return fire()
-			}
-
-			if (state === REJECTING) {
-				m.deferred.onerror(promiseValue)
-			}
-
-			thennable(then, function () {
-				state = RESOLVING
-				fire()
-			}, function () {
-				state = REJECTING
-				fire()
-			}, function () {
-				try {
-					if (state === RESOLVING && isFunction(onSuccess)) {
-						promiseValue = onSuccess(promiseValue)
-					} else if (state === REJECTING && isFunction(onFailure)) {
-						promiseValue = onFailure(promiseValue)
-						state = RESOLVING
-					}
-				} catch (e) {
-					m.deferred.onerror(e)
-					promiseValue = e
-					return finish()
-				}
-
-				if (promiseValue === self) {
-					promiseValue = TypeError()
-					finish()
-				} else {
-					thennable(then, function () {
-						finish(RESOLVED)
-					}, finish, function () {
-						finish(state === RESOLVING && RESOLVED)
-					})
-				}
-			})
-		}
-	}
-
-	m.deferred.onerror = function (e) {
-		if (type.call(e) === "[object Error]" &&
-				!/ Error/.test(e.constructor.toString())) {
-			pendingRequests = 0
-			throw e
-		}
-	}
-
-	m.sync = function (args) {
-		var deferred = m.deferred()
-		var outstanding = args.length
-		var results = new Array(outstanding)
-		var method = "resolve"
-
-		function synchronizer(pos, resolved) {
-			return function (value) {
-				results[pos] = value
-				if (!resolved) method = "reject"
-				if (--outstanding === 0) {
-					deferred.promise(results)
-					deferred[method](results)
-				}
-				return value
-			}
-		}
-
-		if (args.length > 0) {
-			forEach(args, function (arg, i) {
-				arg.then(synchronizer(i, true), synchronizer(i, false))
-			})
-		} else {
-			deferred.resolve([])
-		}
-
-		return deferred.promise
-	}
-
-	function identity(value) { return value }
-
-	function handleJsonp(options) {
-		var callbackKey = "mithril_callback_" +
-			new Date().getTime() + "_" +
-			(Math.round(Math.random() * 1e16)).toString(36)
-
-		var script = $document.createElement("script")
-
-		global[callbackKey] = function (resp) {
-			script.parentNode.removeChild(script)
-			options.onload({
-				type: "load",
-				target: {
-					responseText: resp
-				}
-			})
-			global[callbackKey] = undefined
-		}
-
-		script.onerror = function () {
-			script.parentNode.removeChild(script)
-
-			options.onerror({
-				type: "error",
-				target: {
-					status: 500,
-					responseText: JSON.stringify({
-						error: "Error making jsonp request"
-					})
-				}
-			})
-			global[callbackKey] = undefined
-
-			return false
-		}
-
-		script.onload = function () {
-			return false
-		}
-
-		script.src = options.url +
-			(options.url.indexOf("?") > 0 ? "&" : "?") +
-			(options.callbackKey ? options.callbackKey : "callback") +
-			"=" + callbackKey +
-			"&" + buildQueryString(options.data || {})
-
-		$document.body.appendChild(script)
-	}
-
-	function createXhr(options) {
-		var xhr = new global.XMLHttpRequest()
-		xhr.open(options.method, options.url, true, options.user,
-			options.password)
-
-		xhr.onreadystatechange = function () {
-			if (xhr.readyState === 4) {
-				if (xhr.status >= 200 && xhr.status < 300) {
-					options.onload({type: "load", target: xhr})
-				} else {
-					options.onerror({type: "error", target: xhr})
-				}
-			}
-		}
-
-		if (options.serialize === JSON.stringify &&
-				options.data &&
-				options.method !== "GET") {
-			xhr.setRequestHeader("Content-Type",
-				"application/json; charset=utf-8")
-		}
-
-		if (options.deserialize === JSON.parse) {
-			xhr.setRequestHeader("Accept", "application/json, text/*")
-		}
-
-		if (isFunction(options.config)) {
-			var maybeXhr = options.config(xhr, options)
-			if (maybeXhr != null) xhr = maybeXhr
-		}
-
-		var data = options.method === "GET" || !options.data ? "" : options.data
-
-		if (data && !isString(data) && data.constructor !== global.FormData) {
-			throw new Error("Request data should be either be a string or " +
-				"FormData. Check the `serialize` option in `m.request`")
-		}
-
-		xhr.send(data)
-		return xhr
-	}
-
-	function ajax(options) {
-		if (options.dataType && options.dataType.toLowerCase() === "jsonp") {
-			return handleJsonp(options)
-		} else {
-			return createXhr(options)
-		}
-	}
-
-	function bindData(options, data, serialize) {
-		if (options.method === "GET" && options.dataType !== "jsonp") {
-			var prefix = options.url.indexOf("?") < 0 ? "?" : "&"
-			var querystring = buildQueryString(data)
-			options.url += (querystring ? prefix + querystring : "")
-		} else {
-			options.data = serialize(data)
-		}
-	}
-
-	function parameterizeUrl(url, data) {
-		if (data) {
-			url = url.replace(/:[a-z]\w+/gi, function(token){
-				var key = token.slice(1)
-				var value = data[key]
-				delete data[key]
-				return value
-			})
-		}
-		return url
-	}
-
-	m.request = function (options) {
-		if (options.background !== true) m.startComputation()
-		var deferred = new Deferred()
-		var isJSONP = options.dataType &&
-			options.dataType.toLowerCase() === "jsonp"
-
-		var serialize, deserialize, extract
-
-		if (isJSONP) {
-			serialize = options.serialize =
-			deserialize = options.deserialize = identity
-
-			extract = function (jsonp) { return jsonp.responseText }
-		} else {
-			serialize = options.serialize = options.serialize || JSON.stringify
-
-			deserialize = options.deserialize =
-				options.deserialize || JSON.parse
-			extract = options.extract || function (xhr) {
-				if (xhr.responseText.length || deserialize !== JSON.parse) {
-					return xhr.responseText
-				} else {
-					return null
-				}
-			}
-		}
-
-		options.method = (options.method || "GET").toUpperCase()
-		options.url = parameterizeUrl(options.url, options.data)
-		bindData(options, options.data, serialize)
-		options.onload = options.onerror = function (ev) {
-			try {
-				ev = ev || event
-				var response = deserialize(extract(ev.target, options))
-				if (ev.type === "load") {
-					if (options.unwrapSuccess) {
-						response = options.unwrapSuccess(response, ev.target)
-					}
-
-					if (isArray(response) && options.type) {
-						forEach(response, function (res, i) {
-							response[i] = new options.type(res)
-						})
-					} else if (options.type) {
-						response = new options.type(response)
-					}
-
-					deferred.resolve(response)
-				} else {
-					if (options.unwrapError) {
-						response = options.unwrapError(response, ev.target)
-					}
-
-					deferred.reject(response)
-				}
-			} catch (e) {
-				deferred.reject(e)
-			} finally {
-				if (options.background !== true) m.endComputation()
-			}
-		}
-
-		ajax(options)
-		deferred.promise = propify(deferred.promise, options.initialValue)
-		return deferred.promise
-	}
-
-	return m
-})
-
-},{}],36:[function(require,module,exports){
-/**
- * Helpers.
- */
-
-var s = 1000;
-var m = s * 60;
-var h = m * 60;
-var d = h * 24;
-var y = d * 365.25;
-
-/**
- * Parse or format the given `val`.
- *
- * Options:
- *
- *  - `long` verbose formatting [false]
- *
- * @param {String|Number} val
- * @param {Object} options
- * @return {String|Number}
- * @api public
- */
-
-module.exports = function(val, options){
-  options = options || {};
-  if ('string' == typeof val) return parse(val);
-  return options.long
-    ? long(val)
-    : short(val);
-};
-
-/**
- * Parse the given `str` and return milliseconds.
- *
- * @param {String} str
- * @return {Number}
- * @api private
- */
-
-function parse(str) {
-  str = '' + str;
-  if (str.length > 10000) return;
-  var match = /^((?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec(str);
-  if (!match) return;
-  var n = parseFloat(match[1]);
-  var type = (match[2] || 'ms').toLowerCase();
-  switch (type) {
-    case 'years':
-    case 'year':
-    case 'yrs':
-    case 'yr':
-    case 'y':
-      return n * y;
-    case 'days':
-    case 'day':
-    case 'd':
-      return n * d;
-    case 'hours':
-    case 'hour':
-    case 'hrs':
-    case 'hr':
-    case 'h':
-      return n * h;
-    case 'minutes':
-    case 'minute':
-    case 'mins':
-    case 'min':
-    case 'm':
-      return n * m;
-    case 'seconds':
-    case 'second':
-    case 'secs':
-    case 'sec':
-    case 's':
-      return n * s;
-    case 'milliseconds':
-    case 'millisecond':
-    case 'msecs':
-    case 'msec':
-    case 'ms':
-      return n;
-  }
-}
-
-/**
- * Short format for `ms`.
- *
- * @param {Number} ms
- * @return {String}
- * @api private
- */
-
-function short(ms) {
-  if (ms >= d) return Math.round(ms / d) + 'd';
-  if (ms >= h) return Math.round(ms / h) + 'h';
-  if (ms >= m) return Math.round(ms / m) + 'm';
-  if (ms >= s) return Math.round(ms / s) + 's';
-  return ms + 'ms';
-}
-
-/**
- * Long format for `ms`.
- *
- * @param {Number} ms
- * @return {String}
- * @api private
- */
-
-function long(ms) {
-  return plural(ms, d, 'day')
-    || plural(ms, h, 'hour')
-    || plural(ms, m, 'minute')
-    || plural(ms, s, 'second')
-    || ms + ' ms';
-}
-
-/**
- * Pluralization helper.
- */
-
-function plural(ms, n, name) {
-  if (ms < n) return;
-  if (ms < n * 1.5) return Math.floor(ms / n) + ' ' + name;
-  return Math.ceil(ms / n) + ' ' + name + 's';
-}
-
-},{}],37:[function(require,module,exports){
-(function (global){
-/**
- * JSON parse.
- *
- * @see Based on jQuery#parseJSON (MIT) and JSON2
- * @api private
- */
-
-var rvalidchars = /^[\],:{}\s]*$/;
-var rvalidescape = /\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g;
-var rvalidtokens = /"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g;
-var rvalidbraces = /(?:^|:|,)(?:\s*\[)+/g;
-var rtrimLeft = /^\s+/;
-var rtrimRight = /\s+$/;
-
-module.exports = function parsejson(data) {
-  if ('string' != typeof data || !data) {
-    return null;
-  }
-
-  data = data.replace(rtrimLeft, '').replace(rtrimRight, '');
-
-  // Attempt to parse using the native JSON parser first
-  if (global.JSON && JSON.parse) {
-    return JSON.parse(data);
-  }
-
-  if (rvalidchars.test(data.replace(rvalidescape, '@')
-      .replace(rvalidtokens, ']')
-      .replace(rvalidbraces, ''))) {
-    return (new Function('return ' + data))();
-  }
-};
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{}],38:[function(require,module,exports){
-/**
- * Compiles a querystring
- * Returns string representation of the object
- *
- * @param {Object}
- * @api private
- */
-
-exports.encode = function (obj) {
-  var str = '';
-
-  for (var i in obj) {
-    if (obj.hasOwnProperty(i)) {
-      if (str.length) str += '&';
-      str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);
-    }
-  }
-
-  return str;
-};
-
-/**
- * Parses a simple querystring into an object
- *
- * @param {String} qs
- * @api private
- */
-
-exports.decode = function(qs){
-  var qry = {};
-  var pairs = qs.split('&');
-  for (var i = 0, l = pairs.length; i < l; i++) {
-    var pair = pairs[i].split('=');
-    qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);
-  }
-  return qry;
-};
-
-},{}],39:[function(require,module,exports){
-/**
- * Parses an URI
- *
- * @author Steven Levithan <stevenlevithan.com> (MIT license)
- * @api private
- */
-
-var re = /^(?:(?![^:@]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/;
-
-var parts = [
-    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'
-];
-
-module.exports = function parseuri(str) {
-    var src = str,
-        b = str.indexOf('['),
-        e = str.indexOf(']');
-
-    if (b != -1 && e != -1) {
-        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);
-    }
-
-    var m = re.exec(str || ''),
-        uri = {},
-        i = 14;
-
-    while (i--) {
-        uri[parts[i]] = m[i] || '';
-    }
-
-    if (b != -1 && e != -1) {
-        uri.source = src;
-        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');
-        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');
-        uri.ipv6uri = true;
-    }
-
-    return uri;
-};
-
-},{}],40:[function(require,module,exports){
-
-/**
- * Module dependencies.
- */
-
-var url = require('./url');
-var parser = require('socket.io-parser');
-var Manager = require('./manager');
-var debug = require('debug')('socket.io-client');
-
-/**
- * Module exports.
- */
-
-module.exports = exports = lookup;
-
-/**
- * Managers cache.
- */
-
-var cache = exports.managers = {};
-
-/**
- * Looks up an existing `Manager` for multiplexing.
- * If the user summons:
- *
- *   `io('http://localhost/a');`
- *   `io('http://localhost/b');`
- *
- * We reuse the existing instance based on same scheme/port/host,
- * and we initialize sockets for each namespace.
- *
- * @api public
- */
-
-function lookup(uri, opts) {
-  if (typeof uri == 'object') {
-    opts = uri;
-    uri = undefined;
-  }
-
-  opts = opts || {};
-
-  var parsed = url(uri);
-  var source = parsed.source;
-  var id = parsed.id;
-  var path = parsed.path;
-  var sameNamespace = cache[id] && path in cache[id].nsps;
-  var newConnection = opts.forceNew || opts['force new connection'] ||
-                      false === opts.multiplex || sameNamespace;
-
-  var io;
-
-  if (newConnection) {
-    debug('ignoring socket cache for %s', source);
-    io = Manager(source, opts);
-  } else {
-    if (!cache[id]) {
-      debug('new io instance for %s', source);
-      cache[id] = Manager(source, opts);
-    }
-    io = cache[id];
-  }
-
-  return io.socket(parsed.path);
-}
-
-/**
- * Protocol version.
- *
- * @api public
- */
-
-exports.protocol = parser.protocol;
-
-/**
- * `connect`.
- *
- * @param {String} uri
- * @api public
- */
-
-exports.connect = lookup;
-
-/**
- * Expose constructors for standalone build.
- *
- * @api public
- */
-
-exports.Manager = require('./manager');
-exports.Socket = require('./socket');
-
-},{"./manager":41,"./socket":43,"./url":44,"debug":15,"socket.io-parser":47}],41:[function(require,module,exports){
-
-/**
- * Module dependencies.
- */
-
-var eio = require('engine.io-client');
-var Socket = require('./socket');
-var Emitter = require('component-emitter');
-var parser = require('socket.io-parser');
-var on = require('./on');
-var bind = require('component-bind');
-var debug = require('debug')('socket.io-client:manager');
-var indexOf = require('indexof');
-var Backoff = require('backo2');
-
-/**
- * IE6+ hasOwnProperty
- */
-
-var has = Object.prototype.hasOwnProperty;
-
-/**
- * Module exports
- */
-
-module.exports = Manager;
-
-/**
- * `Manager` constructor.
- *
- * @param {String} engine instance or engine uri/opts
- * @param {Object} options
- * @api public
- */
-
-function Manager(uri, opts){
-  if (!(this instanceof Manager)) return new Manager(uri, opts);
-  if (uri && ('object' == typeof uri)) {
-    opts = uri;
-    uri = undefined;
-  }
-  opts = opts || {};
-
-  opts.path = opts.path || '/socket.io';
-  this.nsps = {};
-  this.subs = [];
-  this.opts = opts;
-  this.reconnection(opts.reconnection !== false);
-  this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);
-  this.reconnectionDelay(opts.reconnectionDelay || 1000);
-  this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);
-  this.randomizationFactor(opts.randomizationFactor || 0.5);
-  this.backoff = new Backoff({
-    min: this.reconnectionDelay(),
-    max: this.reconnectionDelayMax(),
-    jitter: this.randomizationFactor()
-  });
-  this.timeout(null == opts.timeout ? 20000 : opts.timeout);
-  this.readyState = 'closed';
-  this.uri = uri;
-  this.connecting = [];
-  this.lastPing = null;
-  this.encoding = false;
-  this.packetBuffer = [];
-  this.encoder = new parser.Encoder();
-  this.decoder = new parser.Decoder();
-  this.autoConnect = opts.autoConnect !== false;
-  if (this.autoConnect) this.open();
-}
-
-/**
- * Propagate given event to sockets and emit on `this`
- *
- * @api private
- */
-
-Manager.prototype.emitAll = function() {
-  this.emit.apply(this, arguments);
-  for (var nsp in this.nsps) {
-    if (has.call(this.nsps, nsp)) {
-      this.nsps[nsp].emit.apply(this.nsps[nsp], arguments);
-    }
-  }
-};
-
-/**
- * Update `socket.id` of all sockets
- *
- * @api private
- */
-
-Manager.prototype.updateSocketIds = function(){
-  for (var nsp in this.nsps) {
-    if (has.call(this.nsps, nsp)) {
-      this.nsps[nsp].id = this.engine.id;
-    }
-  }
-};
-
-/**
- * Mix in `Emitter`.
- */
-
-Emitter(Manager.prototype);
-
-/**
- * Sets the `reconnection` config.
- *
- * @param {Boolean} true/false if it should automatically reconnect
- * @return {Manager} self or value
- * @api public
- */
-
-Manager.prototype.reconnection = function(v){
-  if (!arguments.length) return this._reconnection;
-  this._reconnection = !!v;
-  return this;
-};
-
-/**
- * Sets the reconnection attempts config.
- *
- * @param {Number} max reconnection attempts before giving up
- * @return {Manager} self or value
- * @api public
- */
-
-Manager.prototype.reconnectionAttempts = function(v){
-  if (!arguments.length) return this._reconnectionAttempts;
-  this._reconnectionAttempts = v;
-  return this;
-};
-
-/**
- * Sets the delay between reconnections.
- *
- * @param {Number} delay
- * @return {Manager} self or value
- * @api public
- */
-
-Manager.prototype.reconnectionDelay = function(v){
-  if (!arguments.length) return this._reconnectionDelay;
-  this._reconnectionDelay = v;
-  this.backoff && this.backoff.setMin(v);
-  return this;
-};
-
-Manager.prototype.randomizationFactor = function(v){
-  if (!arguments.length) return this._randomizationFactor;
-  this._randomizationFactor = v;
-  this.backoff && this.backoff.setJitter(v);
-  return this;
-};
-
-/**
- * Sets the maximum delay between reconnections.
- *
- * @param {Number} delay
- * @return {Manager} self or value
- * @api public
- */
-
-Manager.prototype.reconnectionDelayMax = function(v){
-  if (!arguments.length) return this._reconnectionDelayMax;
-  this._reconnectionDelayMax = v;
-  this.backoff && this.backoff.setMax(v);
-  return this;
-};
-
-/**
- * Sets the connection timeout. `false` to disable
- *
- * @return {Manager} self or value
- * @api public
- */
-
-Manager.prototype.timeout = function(v){
-  if (!arguments.length) return this._timeout;
-  this._timeout = v;
-  return this;
-};
-
-/**
- * Starts trying to reconnect if reconnection is enabled and we have not
- * started reconnecting yet
- *
- * @api private
- */
-
-Manager.prototype.maybeReconnectOnOpen = function() {
-  // Only try to reconnect if it's the first time we're connecting
-  if (!this.reconnecting && this._reconnection && this.backoff.attempts === 0) {
-    // keeps reconnection from firing twice for the same reconnection loop
-    this.reconnect();
-  }
-};
-
-
-/**
- * Sets the current transport `socket`.
- *
- * @param {Function} optional, callback
- * @return {Manager} self
- * @api public
- */
-
-Manager.prototype.open =
-Manager.prototype.connect = function(fn){
-  debug('readyState %s', this.readyState);
-  if (~this.readyState.indexOf('open')) return this;
-
-  debug('opening %s', this.uri);
-  this.engine = eio(this.uri, this.opts);
-  var socket = this.engine;
-  var self = this;
-  this.readyState = 'opening';
-  this.skipReconnect = false;
-
-  // emit `open`
-  var openSub = on(socket, 'open', function() {
-    self.onopen();
-    fn && fn();
-  });
-
-  // emit `connect_error`
-  var errorSub = on(socket, 'error', function(data){
-    debug('connect_error');
-    self.cleanup();
-    self.readyState = 'closed';
-    self.emitAll('connect_error', data);
-    if (fn) {
-      var err = new Error('Connection error');
-      err.data = data;
-      fn(err);
-    } else {
-      // Only do this if there is no fn to handle the error
-      self.maybeReconnectOnOpen();
-    }
-  });
-
-  // emit `connect_timeout`
-  if (false !== this._timeout) {
-    var timeout = this._timeout;
-    debug('connect attempt will timeout after %d', timeout);
-
-    // set timer
-    var timer = setTimeout(function(){
-      debug('connect attempt timed out after %d', timeout);
-      openSub.destroy();
-      socket.close();
-      socket.emit('error', 'timeout');
-      self.emitAll('connect_timeout', timeout);
-    }, timeout);
-
-    this.subs.push({
-      destroy: function(){
-        clearTimeout(timer);
-      }
-    });
-  }
-
-  this.subs.push(openSub);
-  this.subs.push(errorSub);
-
-  return this;
-};
-
-/**
- * Called upon transport open.
- *
- * @api private
- */
-
-Manager.prototype.onopen = function(){
-  debug('open');
-
-  // clear old subs
-  this.cleanup();
-
-  // mark as open
-  this.readyState = 'open';
-  this.emit('open');
-
-  // add new subs
-  var socket = this.engine;
-  this.subs.push(on(socket, 'data', bind(this, 'ondata')));
-  this.subs.push(on(socket, 'ping', bind(this, 'onping')));
-  this.subs.push(on(socket, 'pong', bind(this, 'onpong')));
-  this.subs.push(on(socket, 'error', bind(this, 'onerror')));
-  this.subs.push(on(socket, 'close', bind(this, 'onclose')));
-  this.subs.push(on(this.decoder, 'decoded', bind(this, 'ondecoded')));
-};
-
-/**
- * Called upon a ping.
- *
- * @api private
- */
-
-Manager.prototype.onping = function(){
-  this.lastPing = new Date;
-  this.emitAll('ping');
-};
-
-/**
- * Called upon a packet.
- *
- * @api private
- */
-
-Manager.prototype.onpong = function(){
-  this.emitAll('pong', new Date - this.lastPing);
-};
-
-/**
- * Called with data.
- *
- * @api private
- */
-
-Manager.prototype.ondata = function(data){
-  this.decoder.add(data);
-};
-
-/**
- * Called when parser fully decodes a packet.
- *
- * @api private
- */
-
-Manager.prototype.ondecoded = function(packet) {
-  this.emit('packet', packet);
-};
-
-/**
- * Called upon socket error.
- *
- * @api private
- */
-
-Manager.prototype.onerror = function(err){
-  debug('error', err);
-  this.emitAll('error', err);
-};
-
-/**
- * Creates a new socket for the given `nsp`.
- *
- * @return {Socket}
- * @api public
- */
-
-Manager.prototype.socket = function(nsp){
-  var socket = this.nsps[nsp];
-  if (!socket) {
-    socket = new Socket(this, nsp);
-    this.nsps[nsp] = socket;
-    var self = this;
-    socket.on('connecting', onConnecting);
-    socket.on('connect', function(){
-      socket.id = self.engine.id;
-    });
-
-    if (this.autoConnect) {
-      // manually call here since connecting evnet is fired before listening
-      onConnecting();
-    }
-  }
-
-  function onConnecting() {
-    if (!~indexOf(self.connecting, socket)) {
-      self.connecting.push(socket);
-    }
-  }
-
-  return socket;
-};
-
-/**
- * Called upon a socket close.
- *
- * @param {Socket} socket
- */
-
-Manager.prototype.destroy = function(socket){
-  var index = indexOf(this.connecting, socket);
-  if (~index) this.connecting.splice(index, 1);
-  if (this.connecting.length) return;
-
-  this.close();
-};
-
-/**
- * Writes a packet.
- *
- * @param {Object} packet
- * @api private
- */
-
-Manager.prototype.packet = function(packet){
-  debug('writing packet %j', packet);
-  var self = this;
-
-  if (!self.encoding) {
-    // encode, then write to engine with result
-    self.encoding = true;
-    this.encoder.encode(packet, function(encodedPackets) {
-      for (var i = 0; i < encodedPackets.length; i++) {
-        self.engine.write(encodedPackets[i], packet.options);
-      }
-      self.encoding = false;
-      self.processPacketQueue();
-    });
-  } else { // add packet to the queue
-    self.packetBuffer.push(packet);
-  }
-};
-
-/**
- * If packet buffer is non-empty, begins encoding the
- * next packet in line.
- *
- * @api private
- */
-
-Manager.prototype.processPacketQueue = function() {
-  if (this.packetBuffer.length > 0 && !this.encoding) {
-    var pack = this.packetBuffer.shift();
-    this.packet(pack);
-  }
-};
-
-/**
- * Clean up transport subscriptions and packet buffer.
- *
- * @api private
- */
-
-Manager.prototype.cleanup = function(){
-  debug('cleanup');
-
-  var sub;
-  while (sub = this.subs.shift()) sub.destroy();
-
-  this.packetBuffer = [];
-  this.encoding = false;
-  this.lastPing = null;
-
-  this.decoder.destroy();
-};
-
-/**
- * Close the current socket.
- *
- * @api private
- */
-
-Manager.prototype.close =
-Manager.prototype.disconnect = function(){
-  debug('disconnect');
-  this.skipReconnect = true;
-  this.reconnecting = false;
-  if ('opening' == this.readyState) {
-    // `onclose` will not fire because
-    // an open event never happened
-    this.cleanup();
-  }
-  this.backoff.reset();
-  this.readyState = 'closed';
-  if (this.engine) this.engine.close();
-};
-
-/**
- * Called upon engine close.
- *
- * @api private
- */
-
-Manager.prototype.onclose = function(reason){
-  debug('onclose');
-
-  this.cleanup();
-  this.backoff.reset();
-  this.readyState = 'closed';
-  this.emit('close', reason);
-
-  if (this._reconnection && !this.skipReconnect) {
-    this.reconnect();
-  }
-};
-
-/**
- * Attempt a reconnection.
- *
- * @api private
- */
-
-Manager.prototype.reconnect = function(){
-  if (this.reconnecting || this.skipReconnect) return this;
-
-  var self = this;
-
-  if (this.backoff.attempts >= this._reconnectionAttempts) {
-    debug('reconnect failed');
-    this.backoff.reset();
-    this.emitAll('reconnect_failed');
-    this.reconnecting = false;
-  } else {
-    var delay = this.backoff.duration();
-    debug('will wait %dms before reconnect attempt', delay);
-
-    this.reconnecting = true;
-    var timer = setTimeout(function(){
-      if (self.skipReconnect) return;
-
-      debug('attempting reconnect');
-      self.emitAll('reconnect_attempt', self.backoff.attempts);
-      self.emitAll('reconnecting', self.backoff.attempts);
-
-      // check again for the case socket closed in above events
-      if (self.skipReconnect) return;
-
-      self.open(function(err){
-        if (err) {
-          debug('reconnect attempt error');
-          self.reconnecting = false;
-          self.reconnect();
-          self.emitAll('reconnect_error', err.data);
-        } else {
-          debug('reconnect success');
-          self.onreconnect();
-        }
-      });
-    }, delay);
-
-    this.subs.push({
-      destroy: function(){
-        clearTimeout(timer);
-      }
-    });
-  }
-};
-
-/**
- * Called upon successful reconnect.
- *
- * @api private
- */
-
-Manager.prototype.onreconnect = function(){
-  var attempt = this.backoff.attempts;
-  this.reconnecting = false;
-  this.backoff.reset();
-  this.updateSocketIds();
-  this.emitAll('reconnect', attempt);
-};
-
-},{"./on":42,"./socket":43,"backo2":8,"component-bind":12,"component-emitter":45,"debug":15,"engine.io-client":17,"indexof":34,"socket.io-parser":47}],42:[function(require,module,exports){
-
-/**
- * Module exports.
- */
-
-module.exports = on;
-
-/**
- * Helper for subscriptions.
- *
- * @param {Object|EventEmitter} obj with `Emitter` mixin or `EventEmitter`
- * @param {String} event name
- * @param {Function} callback
- * @api public
- */
-
-function on(obj, ev, fn) {
-  obj.on(ev, fn);
-  return {
-    destroy: function(){
-      obj.removeListener(ev, fn);
-    }
-  };
-}
-
-},{}],43:[function(require,module,exports){
-
-/**
- * Module dependencies.
- */
-
-var parser = require('socket.io-parser');
-var Emitter = require('component-emitter');
-var toArray = require('to-array');
-var on = require('./on');
-var bind = require('component-bind');
-var debug = require('debug')('socket.io-client:socket');
-var hasBin = require('has-binary');
-
-/**
- * Module exports.
- */
-
-module.exports = exports = Socket;
-
-/**
- * Internal events (blacklisted).
- * These events can't be emitted by the user.
- *
- * @api private
- */
-
-var events = {
-  connect: 1,
-  connect_error: 1,
-  connect_timeout: 1,
-  connecting: 1,
-  disconnect: 1,
-  error: 1,
-  reconnect: 1,
-  reconnect_attempt: 1,
-  reconnect_failed: 1,
-  reconnect_error: 1,
-  reconnecting: 1,
-  ping: 1,
-  pong: 1
-};
-
-/**
- * Shortcut to `Emitter#emit`.
- */
-
-var emit = Emitter.prototype.emit;
-
-/**
- * `Socket` constructor.
- *
- * @api public
- */
-
-function Socket(io, nsp){
-  this.io = io;
-  this.nsp = nsp;
-  this.json = this; // compat
-  this.ids = 0;
-  this.acks = {};
-  this.receiveBuffer = [];
-  this.sendBuffer = [];
-  this.connected = false;
-  this.disconnected = true;
-  if (this.io.autoConnect) this.open();
-}
-
-/**
- * Mix in `Emitter`.
- */
-
-Emitter(Socket.prototype);
-
-/**
- * Subscribe to open, close and packet events
- *
- * @api private
- */
-
-Socket.prototype.subEvents = function() {
-  if (this.subs) return;
-
-  var io = this.io;
-  this.subs = [
-    on(io, 'open', bind(this, 'onopen')),
-    on(io, 'packet', bind(this, 'onpacket')),
-    on(io, 'close', bind(this, 'onclose'))
-  ];
-};
-
-/**
- * "Opens" the socket.
- *
- * @api public
- */
-
-Socket.prototype.open =
-Socket.prototype.connect = function(){
-  if (this.connected) return this;
-
-  this.subEvents();
-  this.io.open(); // ensure open
-  if ('open' == this.io.readyState) this.onopen();
-  this.emit('connecting');
-  return this;
-};
-
-/**
- * Sends a `message` event.
- *
- * @return {Socket} self
- * @api public
- */
-
-Socket.prototype.send = function(){
-  var args = toArray(arguments);
-  args.unshift('message');
-  this.emit.apply(this, args);
-  return this;
-};
-
-/**
- * Override `emit`.
- * If the event is in `events`, it's emitted normally.
- *
- * @param {String} event name
- * @return {Socket} self
- * @api public
- */
-
-Socket.prototype.emit = function(ev){
-  if (events.hasOwnProperty(ev)) {
-    emit.apply(this, arguments);
-    return this;
-  }
-
-  var args = toArray(arguments);
-  var parserType = parser.EVENT; // default
-  if (hasBin(args)) { parserType = parser.BINARY_EVENT; } // binary
-  var packet = { type: parserType, data: args };
-
-  packet.options = {};
-  packet.options.compress = !this.flags || false !== this.flags.compress;
-
-  // event ack callback
-  if ('function' == typeof args[args.length - 1]) {
-    debug('emitting packet with ack id %d', this.ids);
-    this.acks[this.ids] = args.pop();
-    packet.id = this.ids++;
-  }
-
-  if (this.connected) {
-    this.packet(packet);
-  } else {
-    this.sendBuffer.push(packet);
-  }
-
-  delete this.flags;
-
-  return this;
-};
-
-/**
- * Sends a packet.
- *
- * @param {Object} packet
- * @api private
- */
-
-Socket.prototype.packet = function(packet){
-  packet.nsp = this.nsp;
-  this.io.packet(packet);
-};
-
-/**
- * Called upon engine `open`.
- *
- * @api private
- */
-
-Socket.prototype.onopen = function(){
-  debug('transport is open - connecting');
-
-  // write connect packet if necessary
-  if ('/' != this.nsp) {
-    this.packet({ type: parser.CONNECT });
-  }
-};
-
-/**
- * Called upon engine `close`.
- *
- * @param {String} reason
- * @api private
- */
-
-Socket.prototype.onclose = function(reason){
-  debug('close (%s)', reason);
-  this.connected = false;
-  this.disconnected = true;
-  delete this.id;
-  this.emit('disconnect', reason);
-};
-
-/**
- * Called with socket packet.
- *
- * @param {Object} packet
- * @api private
- */
-
-Socket.prototype.onpacket = function(packet){
-  if (packet.nsp != this.nsp) return;
-
-  switch (packet.type) {
-    case parser.CONNECT:
-      this.onconnect();
-      break;
-
-    case parser.EVENT:
-      this.onevent(packet);
-      break;
-
-    case parser.BINARY_EVENT:
-      this.onevent(packet);
-      break;
-
-    case parser.ACK:
-      this.onack(packet);
-      break;
-
-    case parser.BINARY_ACK:
-      this.onack(packet);
-      break;
-
-    case parser.DISCONNECT:
-      this.ondisconnect();
-      break;
-
-    case parser.ERROR:
-      this.emit('error', packet.data);
-      break;
-  }
-};
-
-/**
- * Called upon a server event.
- *
- * @param {Object} packet
- * @api private
- */
-
-Socket.prototype.onevent = function(packet){
-  var args = packet.data || [];
-  debug('emitting event %j', args);
-
-  if (null != packet.id) {
-    debug('attaching ack callback to event');
-    args.push(this.ack(packet.id));
-  }
-
-  if (this.connected) {
-    emit.apply(this, args);
-  } else {
-    this.receiveBuffer.push(args);
-  }
-};
-
-/**
- * Produces an ack callback to emit with an event.
- *
- * @api private
- */
-
-Socket.prototype.ack = function(id){
-  var self = this;
-  var sent = false;
-  return function(){
-    // prevent double callbacks
-    if (sent) return;
-    sent = true;
-    var args = toArray(arguments);
-    debug('sending ack %j', args);
-
-    var type = hasBin(args) ? parser.BINARY_ACK : parser.ACK;
-    self.packet({
-      type: type,
-      id: id,
-      data: args
-    });
-  };
-};
-
-/**
- * Called upon a server acknowlegement.
- *
- * @param {Object} packet
- * @api private
- */
-
-Socket.prototype.onack = function(packet){
-  var ack = this.acks[packet.id];
-  if ('function' == typeof ack) {
-    debug('calling ack %s with %j', packet.id, packet.data);
-    ack.apply(this, packet.data);
-    delete this.acks[packet.id];
-  } else {
-    debug('bad ack %s', packet.id);
-  }
-};
-
-/**
- * Called upon server connect.
- *
- * @api private
- */
-
-Socket.prototype.onconnect = function(){
-  this.connected = true;
-  this.disconnected = false;
-  this.emit('connect');
-  this.emitBuffered();
-};
-
-/**
- * Emit buffered events (received and emitted).
- *
- * @api private
- */
-
-Socket.prototype.emitBuffered = function(){
-  var i;
-  for (i = 0; i < this.receiveBuffer.length; i++) {
-    emit.apply(this, this.receiveBuffer[i]);
-  }
-  this.receiveBuffer = [];
-
-  for (i = 0; i < this.sendBuffer.length; i++) {
-    this.packet(this.sendBuffer[i]);
-  }
-  this.sendBuffer = [];
-};
-
-/**
- * Called upon server disconnect.
- *
- * @api private
- */
-
-Socket.prototype.ondisconnect = function(){
-  debug('server disconnect (%s)', this.nsp);
-  this.destroy();
-  this.onclose('io server disconnect');
-};
-
-/**
- * Called upon forced client/server side disconnections,
- * this method ensures the manager stops tracking us and
- * that reconnections don't get triggered for this.
- *
- * @api private.
- */
-
-Socket.prototype.destroy = function(){
-  if (this.subs) {
-    // clean subscriptions to avoid reconnections
-    for (var i = 0; i < this.subs.length; i++) {
-      this.subs[i].destroy();
-    }
-    this.subs = null;
-  }
-
-  this.io.destroy(this);
-};
-
-/**
- * Disconnects the socket manually.
- *
- * @return {Socket} self
- * @api public
- */
-
-Socket.prototype.close =
-Socket.prototype.disconnect = function(){
-  if (this.connected) {
-    debug('performing disconnect (%s)', this.nsp);
-    this.packet({ type: parser.DISCONNECT });
-  }
-
-  // remove socket from pool
-  this.destroy();
-
-  if (this.connected) {
-    // fire events
-    this.onclose('io client disconnect');
-  }
-  return this;
-};
-
-/**
- * Sets the compress flag.
- *
- * @param {Boolean} if `true`, compresses the sending data
- * @return {Socket} self
- * @api public
- */
-
-Socket.prototype.compress = function(compress){
-  this.flags = this.flags || {};
-  this.flags.compress = compress;
-  return this;
-};
-
-},{"./on":42,"component-bind":12,"component-emitter":45,"debug":15,"has-binary":31,"socket.io-parser":47,"to-array":51}],44:[function(require,module,exports){
-(function (global){
-
-/**
- * Module dependencies.
- */
-
-var parseuri = require('parseuri');
-var debug = require('debug')('socket.io-client:url');
-
-/**
- * Module exports.
- */
-
-module.exports = url;
-
-/**
- * URL parser.
- *
- * @param {String} url
- * @param {Object} An object meant to mimic window.location.
- *                 Defaults to window.location.
- * @api public
- */
-
-function url(uri, loc){
-  var obj = uri;
-
-  // default to window.location
-  var loc = loc || global.location;
-  if (null == uri) uri = loc.protocol + '//' + loc.host;
-
-  // relative path support
-  if ('string' == typeof uri) {
-    if ('/' == uri.charAt(0)) {
-      if ('/' == uri.charAt(1)) {
-        uri = loc.protocol + uri;
-      } else {
-        uri = loc.host + uri;
-      }
-    }
-
-    if (!/^(https?|wss?):\/\//.test(uri)) {
-      debug('protocol-less url %s', uri);
-      if ('undefined' != typeof loc) {
-        uri = loc.protocol + '//' + uri;
-      } else {
-        uri = 'https://' + uri;
-      }
-    }
-
-    // parse
-    debug('parse %s', uri);
-    obj = parseuri(uri);
-  }
-
-  // make sure we treat `localhost:80` and `localhost` equally
-  if (!obj.port) {
-    if (/^(http|ws)$/.test(obj.protocol)) {
-      obj.port = '80';
-    }
-    else if (/^(http|ws)s$/.test(obj.protocol)) {
-      obj.port = '443';
-    }
-  }
-
-  obj.path = obj.path || '/';
-
-  var ipv6 = obj.host.indexOf(':') !== -1;
-  var host = ipv6 ? '[' + obj.host + ']' : obj.host;
-
-  // define unique id
-  obj.id = obj.protocol + '://' + host + ':' + obj.port;
-  // define href
-  obj.href = obj.protocol + '://' + host + (loc && loc.port == obj.port ? '' : (':' + obj.port));
-
-  return obj;
-}
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{"debug":15,"parseuri":39}],45:[function(require,module,exports){
-
-/**
- * Expose `Emitter`.
- */
-
-module.exports = Emitter;
-
-/**
- * Initialize a new `Emitter`.
- *
- * @api public
- */
-
-function Emitter(obj) {
-  if (obj) return mixin(obj);
-};
-
-/**
- * Mixin the emitter properties.
- *
- * @param {Object} obj
- * @return {Object}
- * @api private
- */
-
-function mixin(obj) {
-  for (var key in Emitter.prototype) {
-    obj[key] = Emitter.prototype[key];
-  }
-  return obj;
-}
-
-/**
- * Listen on the given `event` with `fn`.
- *
- * @param {String} event
- * @param {Function} fn
- * @return {Emitter}
- * @api public
- */
-
-Emitter.prototype.on =
-Emitter.prototype.addEventListener = function(event, fn){
-  this._callbacks = this._callbacks || {};
-  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])
-    .push(fn);
-  return this;
-};
-
-/**
- * Adds an `event` listener that will be invoked a single
- * time then automatically removed.
- *
- * @param {String} event
- * @param {Function} fn
- * @return {Emitter}
- * @api public
- */
-
-Emitter.prototype.once = function(event, fn){
-  function on() {
-    this.off(event, on);
-    fn.apply(this, arguments);
-  }
-
-  on.fn = fn;
-  this.on(event, on);
-  return this;
-};
-
-/**
- * Remove the given callback for `event` or all
- * registered callbacks.
- *
- * @param {String} event
- * @param {Function} fn
- * @return {Emitter}
- * @api public
- */
-
-Emitter.prototype.off =
-Emitter.prototype.removeListener =
-Emitter.prototype.removeAllListeners =
-Emitter.prototype.removeEventListener = function(event, fn){
-  this._callbacks = this._callbacks || {};
-
-  // all
-  if (0 == arguments.length) {
-    this._callbacks = {};
-    return this;
-  }
-
-  // specific event
-  var callbacks = this._callbacks['$' + event];
-  if (!callbacks) return this;
-
-  // remove all handlers
-  if (1 == arguments.length) {
-    delete this._callbacks['$' + event];
-    return this;
-  }
-
-  // remove specific handler
-  var cb;
-  for (var i = 0; i < callbacks.length; i++) {
-    cb = callbacks[i];
-    if (cb === fn || cb.fn === fn) {
-      callbacks.splice(i, 1);
-      break;
-    }
-  }
-  return this;
-};
-
-/**
- * Emit `event` with the given args.
- *
- * @param {String} event
- * @param {Mixed} ...
- * @return {Emitter}
- */
-
-Emitter.prototype.emit = function(event){
-  this._callbacks = this._callbacks || {};
-  var args = [].slice.call(arguments, 1)
-    , callbacks = this._callbacks['$' + event];
-
-  if (callbacks) {
-    callbacks = callbacks.slice(0);
-    for (var i = 0, len = callbacks.length; i < len; ++i) {
-      callbacks[i].apply(this, args);
-    }
-  }
-
-  return this;
-};
-
-/**
- * Return array of callbacks for `event`.
- *
- * @param {String} event
- * @return {Array}
- * @api public
- */
-
-Emitter.prototype.listeners = function(event){
-  this._callbacks = this._callbacks || {};
-  return this._callbacks['$' + event] || [];
-};
-
-/**
- * Check if this emitter has `event` handlers.
- *
- * @param {String} event
- * @return {Boolean}
- * @api public
- */
-
-Emitter.prototype.hasListeners = function(event){
-  return !! this.listeners(event).length;
-};
-
-},{}],46:[function(require,module,exports){
-(function (global){
-/*global Blob,File*/
-
-/**
- * Module requirements
- */
-
-var isArray = require('isarray');
-var isBuf = require('./is-buffer');
-
-/**
- * Replaces every Buffer | ArrayBuffer in packet with a numbered placeholder.
- * Anything with blobs or files should be fed through removeBlobs before coming
- * here.
- *
- * @param {Object} packet - socket.io event packet
- * @return {Object} with deconstructed packet and list of buffers
- * @api public
- */
-
-exports.deconstructPacket = function(packet){
-  var buffers = [];
-  var packetData = packet.data;
-
-  function _deconstructPacket(data) {
-    if (!data) return data;
-
-    if (isBuf(data)) {
-      var placeholder = { _placeholder: true, num: buffers.length };
-      buffers.push(data);
-      return placeholder;
-    } else if (isArray(data)) {
-      var newData = new Array(data.length);
-      for (var i = 0; i < data.length; i++) {
-        newData[i] = _deconstructPacket(data[i]);
-      }
-      return newData;
-    } else if ('object' == typeof data && !(data instanceof Date)) {
-      var newData = {};
-      for (var key in data) {
-        newData[key] = _deconstructPacket(data[key]);
-      }
-      return newData;
-    }
-    return data;
-  }
-
-  var pack = packet;
-  pack.data = _deconstructPacket(packetData);
-  pack.attachments = buffers.length; // number of binary 'attachments'
-  return {packet: pack, buffers: buffers};
-};
-
-/**
- * Reconstructs a binary packet from its placeholder packet and buffers
- *
- * @param {Object} packet - event packet with placeholders
- * @param {Array} buffers - binary buffers to put in placeholder positions
- * @return {Object} reconstructed packet
- * @api public
- */
-
-exports.reconstructPacket = function(packet, buffers) {
-  var curPlaceHolder = 0;
-
-  function _reconstructPacket(data) {
-    if (data && data._placeholder) {
-      var buf = buffers[data.num]; // appropriate buffer (should be natural order anyway)
-      return buf;
-    } else if (isArray(data)) {
-      for (var i = 0; i < data.length; i++) {
-        data[i] = _reconstructPacket(data[i]);
-      }
-      return data;
-    } else if (data && 'object' == typeof data) {
-      for (var key in data) {
-        data[key] = _reconstructPacket(data[key]);
-      }
-      return data;
-    }
-    return data;
-  }
-
-  packet.data = _reconstructPacket(packet.data);
-  packet.attachments = undefined; // no longer useful
-  return packet;
-};
-
-/**
- * Asynchronously removes Blobs or Files from data via
- * FileReader's readAsArrayBuffer method. Used before encoding
- * data as msgpack. Calls callback with the blobless data.
- *
- * @param {Object} data
- * @param {Function} callback
- * @api private
- */
-
-exports.removeBlobs = function(data, callback) {
-  function _removeBlobs(obj, curKey, containingObject) {
-    if (!obj) return obj;
-
-    // convert any blob
-    if ((global.Blob && obj instanceof Blob) ||
-        (global.File && obj instanceof File)) {
-      pendingBlobs++;
-
-      // async filereader
-      var fileReader = new FileReader();
-      fileReader.onload = function() { // this.result == arraybuffer
-        if (containingObject) {
-          containingObject[curKey] = this.result;
-        }
-        else {
-          bloblessData = this.result;
-        }
-
-        // if nothing pending its callback time
-        if(! --pendingBlobs) {
-          callback(bloblessData);
-        }
-      };
-
-      fileReader.readAsArrayBuffer(obj); // blob -> arraybuffer
-    } else if (isArray(obj)) { // handle array
-      for (var i = 0; i < obj.length; i++) {
-        _removeBlobs(obj[i], i, obj);
-      }
-    } else if (obj && 'object' == typeof obj && !isBuf(obj)) { // and object
-      for (var key in obj) {
-        _removeBlobs(obj[key], key, obj);
-      }
-    }
-  }
-
-  var pendingBlobs = 0;
-  var bloblessData = data;
-  _removeBlobs(bloblessData);
-  if (!pendingBlobs) {
-    callback(bloblessData);
-  }
-};
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{"./is-buffer":48,"isarray":49}],47:[function(require,module,exports){
-
-/**
- * Module dependencies.
- */
-
-var debug = require('debug')('socket.io-parser');
-var json = require('json3');
-var isArray = require('isarray');
-var Emitter = require('component-emitter');
-var binary = require('./binary');
-var isBuf = require('./is-buffer');
-
-/**
- * Protocol version.
- *
- * @api public
- */
-
-exports.protocol = 4;
-
-/**
- * Packet types.
- *
- * @api public
- */
-
-exports.types = [
-  'CONNECT',
-  'DISCONNECT',
-  'EVENT',
-  'ACK',
-  'ERROR',
-  'BINARY_EVENT',
-  'BINARY_ACK'
-];
-
-/**
- * Packet type `connect`.
- *
- * @api public
- */
-
-exports.CONNECT = 0;
-
-/**
- * Packet type `disconnect`.
- *
- * @api public
- */
-
-exports.DISCONNECT = 1;
-
-/**
- * Packet type `event`.
- *
- * @api public
- */
-
-exports.EVENT = 2;
-
-/**
- * Packet type `ack`.
- *
- * @api public
- */
-
-exports.ACK = 3;
-
-/**
- * Packet type `error`.
- *
- * @api public
- */
-
-exports.ERROR = 4;
-
-/**
- * Packet type 'binary event'
- *
- * @api public
- */
-
-exports.BINARY_EVENT = 5;
-
-/**
- * Packet type `binary ack`. For acks with binary arguments.
- *
- * @api public
- */
-
-exports.BINARY_ACK = 6;
-
-/**
- * Encoder constructor.
- *
- * @api public
- */
-
-exports.Encoder = Encoder;
-
-/**
- * Decoder constructor.
- *
- * @api public
- */
-
-exports.Decoder = Decoder;
-
-/**
- * A socket.io Encoder instance
- *
- * @api public
- */
-
-function Encoder() {}
-
-/**
- * Encode a packet as a single string if non-binary, or as a
- * buffer sequence, depending on packet type.
- *
- * @param {Object} obj - packet object
- * @param {Function} callback - function to handle encodings (likely engine.write)
- * @return Calls callback with Array of encodings
- * @api public
- */
-
-Encoder.prototype.encode = function(obj, callback){
-  debug('encoding packet %j', obj);
-
-  if (exports.BINARY_EVENT == obj.type || exports.BINARY_ACK == obj.type) {
-    encodeAsBinary(obj, callback);
-  }
-  else {
-    var encoding = encodeAsString(obj);
-    callback([encoding]);
-  }
-};
-
-/**
- * Encode packet as string.
- *
- * @param {Object} packet
- * @return {String} encoded
- * @api private
- */
-
-function encodeAsString(obj) {
-  var str = '';
-  var nsp = false;
-
-  // first is type
-  str += obj.type;
-
-  // attachments if we have them
-  if (exports.BINARY_EVENT == obj.type || exports.BINARY_ACK == obj.type) {
-    str += obj.attachments;
-    str += '-';
-  }
-
-  // if we have a namespace other than `/`
-  // we append it followed by a comma `,`
-  if (obj.nsp && '/' != obj.nsp) {
-    nsp = true;
-    str += obj.nsp;
-  }
-
-  // immediately followed by the id
-  if (null != obj.id) {
-    if (nsp) {
-      str += ',';
-      nsp = false;
-    }
-    str += obj.id;
-  }
-
-  // json data
-  if (null != obj.data) {
-    if (nsp) str += ',';
-    str += json.stringify(obj.data);
-  }
-
-  debug('encoded %j as %s', obj, str);
-  return str;
-}
-
-/**
- * Encode packet as 'buffer sequence' by removing blobs, and
- * deconstructing packet into object with placeholders and
- * a list of buffers.
- *
- * @param {Object} packet
- * @return {Buffer} encoded
- * @api private
- */
-
-function encodeAsBinary(obj, callback) {
-
-  function writeEncoding(bloblessData) {
-    var deconstruction = binary.deconstructPacket(bloblessData);
-    var pack = encodeAsString(deconstruction.packet);
-    var buffers = deconstruction.buffers;
-
-    buffers.unshift(pack); // add packet info to beginning of data list
-    callback(buffers); // write all the buffers
-  }
-
-  binary.removeBlobs(obj, writeEncoding);
-}
-
-/**
- * A socket.io Decoder instance
- *
- * @return {Object} decoder
- * @api public
- */
-
-function Decoder() {
-  this.reconstructor = null;
-}
-
-/**
- * Mix in `Emitter` with Decoder.
- */
-
-Emitter(Decoder.prototype);
-
-/**
- * Decodes an ecoded packet string into packet JSON.
- *
- * @param {String} obj - encoded packet
- * @return {Object} packet
- * @api public
- */
-
-Decoder.prototype.add = function(obj) {
-  var packet;
-  if ('string' == typeof obj) {
-    packet = decodeString(obj);
-    if (exports.BINARY_EVENT == packet.type || exports.BINARY_ACK == packet.type) { // binary packet's json
-      this.reconstructor = new BinaryReconstructor(packet);
-
-      // no attachments, labeled binary but no binary data to follow
-      if (this.reconstructor.reconPack.attachments === 0) {
-        this.emit('decoded', packet);
-      }
-    } else { // non-binary full packet
-      this.emit('decoded', packet);
-    }
-  }
-  else if (isBuf(obj) || obj.base64) { // raw binary data
-    if (!this.reconstructor) {
-      throw new Error('got binary data when not reconstructing a packet');
-    } else {
-      packet = this.reconstructor.takeBinaryData(obj);
-      if (packet) { // received final buffer
-        this.reconstructor = null;
-        this.emit('decoded', packet);
-      }
-    }
-  }
-  else {
-    throw new Error('Unknown type: ' + obj);
-  }
-};
-
-/**
- * Decode a packet String (JSON data)
- *
- * @param {String} str
- * @return {Object} packet
- * @api private
- */
-
-function decodeString(str) {
-  var p = {};
-  var i = 0;
-
-  // look up type
-  p.type = Number(str.charAt(0));
-  if (null == exports.types[p.type]) return error();
-
-  // look up attachments if type binary
-  if (exports.BINARY_EVENT == p.type || exports.BINARY_ACK == p.type) {
-    var buf = '';
-    while (str.charAt(++i) != '-') {
-      buf += str.charAt(i);
-      if (i == str.length) break;
-    }
-    if (buf != Number(buf) || str.charAt(i) != '-') {
-      throw new Error('Illegal attachments');
-    }
-    p.attachments = Number(buf);
-  }
-
-  // look up namespace (if any)
-  if ('/' == str.charAt(i + 1)) {
-    p.nsp = '';
-    while (++i) {
-      var c = str.charAt(i);
-      if (',' == c) break;
-      p.nsp += c;
-      if (i == str.length) break;
-    }
-  } else {
-    p.nsp = '/';
-  }
-
-  // look up id
-  var next = str.charAt(i + 1);
-  if ('' !== next && Number(next) == next) {
-    p.id = '';
-    while (++i) {
-      var c = str.charAt(i);
-      if (null == c || Number(c) != c) {
-        --i;
-        break;
-      }
-      p.id += str.charAt(i);
-      if (i == str.length) break;
-    }
-    p.id = Number(p.id);
-  }
-
-  // look up json data
-  if (str.charAt(++i)) {
-    try {
-      p.data = json.parse(str.substr(i));
-    } catch(e){
-      return error();
-    }
-  }
-
-  debug('decoded %s as %j', str, p);
-  return p;
-}
-
-/**
- * Deallocates a parser's resources
- *
- * @api public
- */
-
-Decoder.prototype.destroy = function() {
-  if (this.reconstructor) {
-    this.reconstructor.finishedReconstruction();
-  }
-};
-
-/**
- * A manager of a binary event's 'buffer sequence'. Should
- * be constructed whenever a packet of type BINARY_EVENT is
- * decoded.
- *
- * @param {Object} packet
- * @return {BinaryReconstructor} initialized reconstructor
- * @api private
- */
-
-function BinaryReconstructor(packet) {
-  this.reconPack = packet;
-  this.buffers = [];
-}
-
-/**
- * Method to be called when binary data received from connection
- * after a BINARY_EVENT packet.
- *
- * @param {Buffer | ArrayBuffer} binData - the raw binary data received
- * @return {null | Object} returns null if more binary data is expected or
- *   a reconstructed packet object if all buffers have been received.
- * @api private
- */
-
-BinaryReconstructor.prototype.takeBinaryData = function(binData) {
-  this.buffers.push(binData);
-  if (this.buffers.length == this.reconPack.attachments) { // done with buffer list
-    var packet = binary.reconstructPacket(this.reconPack, this.buffers);
-    this.finishedReconstruction();
-    return packet;
-  }
-  return null;
-};
-
-/**
- * Cleans up binary packet reconstruction variables.
- *
- * @api private
- */
-
-BinaryReconstructor.prototype.finishedReconstruction = function() {
-  this.reconPack = null;
-  this.buffers = [];
-};
-
-function error(data){
-  return {
-    type: exports.ERROR,
-    data: 'parser error'
-  };
-}
-
-},{"./binary":46,"./is-buffer":48,"component-emitter":13,"debug":15,"isarray":49,"json3":50}],48:[function(require,module,exports){
-(function (global){
-
-module.exports = isBuf;
-
-/**
- * Returns true if obj is a buffer or an arraybuffer.
- *
- * @api private
- */
-
-function isBuf(obj) {
-  return (global.Buffer && global.Buffer.isBuffer(obj)) ||
-         (global.ArrayBuffer && obj instanceof ArrayBuffer);
-}
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{}],49:[function(require,module,exports){
-arguments[4][30][0].apply(exports,arguments)
-},{"dup":30}],50:[function(require,module,exports){
-(function (global){
-/*! JSON v3.3.2 | http://bestiejs.github.io/json3 | Copyright 2012-2014, Kit Cambridge | http://kit.mit-license.org */
-;(function () {
-  // Detect the `define` function exposed by asynchronous module loaders. The
-  // strict `define` check is necessary for compatibility with `r.js`.
-  var isLoader = typeof define === "function" && define.amd;
-
-  // A set of types used to distinguish objects from primitives.
-  var objectTypes = {
-    "function": true,
-    "object": true
-  };
-
-  // Detect the `exports` object exposed by CommonJS implementations.
-  var freeExports = objectTypes[typeof exports] && exports && !exports.nodeType && exports;
-
-  // Use the `global` object exposed by Node (including Browserify via
-  // `insert-module-globals`), Narwhal, and Ringo as the default context,
-  // and the `window` object in browsers. Rhino exports a `global` function
-  // instead.
-  var root = objectTypes[typeof window] && window || this,
-      freeGlobal = freeExports && objectTypes[typeof module] && module && !module.nodeType && typeof global == "object" && global;
-
-  if (freeGlobal && (freeGlobal["global"] === freeGlobal || freeGlobal["window"] === freeGlobal || freeGlobal["self"] === freeGlobal)) {
-    root = freeGlobal;
-  }
-
-  // Public: Initializes JSON 3 using the given `context` object, attaching the
-  // `stringify` and `parse` functions to the specified `exports` object.
-  function runInContext(context, exports) {
-    context || (context = root["Object"]());
-    exports || (exports = root["Object"]());
-
-    // Native constructor aliases.
-    var Number = context["Number"] || root["Number"],
-        String = context["String"] || root["String"],
-        Object = context["Object"] || root["Object"],
-        Date = context["Date"] || root["Date"],
-        SyntaxError = context["SyntaxError"] || root["SyntaxError"],
-        TypeError = context["TypeError"] || root["TypeError"],
-        Math = context["Math"] || root["Math"],
-        nativeJSON = context["JSON"] || root["JSON"];
-
-    // Delegate to the native `stringify` and `parse` implementations.
-    if (typeof nativeJSON == "object" && nativeJSON) {
-      exports.stringify = nativeJSON.stringify;
-      exports.parse = nativeJSON.parse;
-    }
-
-    // Convenience aliases.
-    var objectProto = Object.prototype,
-        getClass = objectProto.toString,
-        isProperty, forEach, undef;
-
-    // Test the `Date#getUTC*` methods. Based on work by @Yaffle.
-    var isExtended = new Date(-3509827334573292);
-    try {
-      // The `getUTCFullYear`, `Month`, and `Date` methods return nonsensical
-      // results for certain dates in Opera >= 10.53.
-      isExtended = isExtended.getUTCFullYear() == -109252 && isExtended.getUTCMonth() === 0 && isExtended.getUTCDate() === 1 &&
-        // Safari < 2.0.2 stores the internal millisecond time value correctly,
-        // but clips the values returned by the date methods to the range of
-        // signed 32-bit integers ([-2 ** 31, 2 ** 31 - 1]).
-        isExtended.getUTCHours() == 10 && isExtended.getUTCMinutes() == 37 && isExtended.getUTCSeconds() == 6 && isExtended.getUTCMilliseconds() == 708;
-    } catch (exception) {}
-
-    // Internal: Determines whether the native `JSON.stringify` and `parse`
-    // implementations are spec-compliant. Based on work by Ken Snyder.
-    function has(name) {
-      if (has[name] !== undef) {
-        // Return cached feature test result.
-        return has[name];
-      }
-      var isSupported;
-      if (name == "bug-string-char-index") {
-        // IE <= 7 doesn't support accessing string characters using square
-        // bracket notation. IE 8 only supports this for primitives.
-        isSupported = "a"[0] != "a";
-      } else if (name == "json") {
-        // Indicates whether both `JSON.stringify` and `JSON.parse` are
-        // supported.
-        isSupported = has("json-stringify") && has("json-parse");
-      } else {
-        var value, serialized = '{"a":[1,true,false,null,"\\u0000\\b\\n\\f\\r\\t"]}';
-        // Test `JSON.stringify`.
-        if (name == "json-stringify") {
-          var stringify = exports.stringify, stringifySupported = typeof stringify == "function" && isExtended;
-          if (stringifySupported) {
-            // A test function object with a custom `toJSON` method.
-            (value = function () {
-              return 1;
-            }).toJSON = value;
-            try {
-              stringifySupported =
-                // Firefox 3.1b1 and b2 serialize string, number, and boolean
-                // primitives as object literals.
-                stringify(0) === "0" &&
-                // FF 3.1b1, b2, and JSON 2 serialize wrapped primitives as object
-                // literals.
-                stringify(new Number()) === "0" &&
-                stringify(new String()) == '""' &&
-                // FF 3.1b1, 2 throw an error if the value is `null`, `undefined`, or
-                // does not define a canonical JSON representation (this applies to
-                // objects with `toJSON` properties as well, *unless* they are nested
-                // within an object or array).
-                stringify(getClass) === undef &&
-                // IE 8 serializes `undefined` as `"undefined"`. Safari <= 5.1.7 and
-                // FF 3.1b3 pass this test.
-                stringify(undef) === undef &&
-                // Safari <= 5.1.7 and FF 3.1b3 throw `Error`s and `TypeError`s,
-                // respectively, if the value is omitted entirely.
-                stringify() === undef &&
-                // FF 3.1b1, 2 throw an error if the given value is not a number,
-                // string, array, object, Boolean, or `null` literal. This applies to
-                // objects with custom `toJSON` methods as well, unless they are nested
-                // inside object or array literals. YUI 3.0.0b1 ignores custom `toJSON`
-                // methods entirely.
-                stringify(value) === "1" &&
-                stringify([value]) == "[1]" &&
-                // Prototype <= 1.6.1 serializes `[undefined]` as `"[]"` instead of
-                // `"[null]"`.
-                stringify([undef]) == "[null]" &&
-                // YUI 3.0.0b1 fails to serialize `null` literals.
-                stringify(null) == "null" &&
-                // FF 3.1b1, 2 halts serialization if an array contains a function:
-                // `[1, true, getClass, 1]` serializes as "[1,true,],". FF 3.1b3
-                // elides non-JSON values from objects and arrays, unless they
-                // define custom `toJSON` methods.
-                stringify([undef, getClass, null]) == "[null,null,null]" &&
-                // Simple serialization test. FF 3.1b1 uses Unicode escape sequences
-                // where character escape codes are expected (e.g., `\b` => `\u0008`).
-                stringify({ "a": [value, true, false, null, "\x00\b\n\f\r\t"] }) == serialized &&
-                // FF 3.1b1 and b2 ignore the `filter` and `width` arguments.
-                stringify(null, value) === "1" &&
-                stringify([1, 2], null, 1) == "[\n 1,\n 2\n]" &&
-                // JSON 2, Prototype <= 1.7, and older WebKit builds incorrectly
-                // serialize extended years.
-                stringify(new Date(-8.64e15)) == '"-271821-04-20T00:00:00.000Z"' &&
-                // The milliseconds are optional in ES 5, but required in 5.1.
-                stringify(new Date(8.64e15)) == '"+275760-09-13T00:00:00.000Z"' &&
-                // Firefox <= 11.0 incorrectly serializes years prior to 0 as negative
-                // four-digit years instead of six-digit years. Credits: @Yaffle.
-                stringify(new Date(-621987552e5)) == '"-000001-01-01T00:00:00.000Z"' &&
-                // Safari <= 5.1.5 and Opera >= 10.53 incorrectly serialize millisecond
-                // values less than 1000. Credits: @Yaffle.
-                stringify(new Date(-1)) == '"1969-12-31T23:59:59.999Z"';
-            } catch (exception) {
-              stringifySupported = false;
-            }
-          }
-          isSupported = stringifySupported;
-        }
-        // Test `JSON.parse`.
-        if (name == "json-parse") {
-          var parse = exports.parse;
-          if (typeof parse == "function") {
-            try {
-              // FF 3.1b1, b2 will throw an exception if a bare literal is provided.
-              // Conforming implementations should also coerce the initial argument to
-              // a string prior to parsing.
-              if (parse("0") === 0 && !parse(false)) {
-                // Simple parsing test.
-                value = parse(serialized);
-                var parseSupported = value["a"].length == 5 && value["a"][0] === 1;
-                if (parseSupported) {
-                  try {
-                    // Safari <= 5.1.2 and FF 3.1b1 allow unescaped tabs in strings.
-                    parseSupported = !parse('"\t"');
-                  } catch (exception) {}
-                  if (parseSupported) {
-                    try {
-                      // FF 4.0 and 4.0.1 allow leading `+` signs and leading
-                      // decimal points. FF 4.0, 4.0.1, and IE 9-10 also allow
-                      // certain octal literals.
-                      parseSupported = parse("01") !== 1;
-                    } catch (exception) {}
-                  }
-                  if (parseSupported) {
-                    try {
-                      // FF 4.0, 4.0.1, and Rhino 1.7R3-R4 allow trailing decimal
-                      // points. These environments, along with FF 3.1b1 and 2,
-                      // also allow trailing commas in JSON objects and arrays.
-                      parseSupported = parse("1.") !== 1;
-                    } catch (exception) {}
-                  }
-                }
-              }
-            } catch (exception) {
-              parseSupported = false;
-            }
-          }
-          isSupported = parseSupported;
-        }
-      }
-      return has[name] = !!isSupported;
-    }
-
-    if (!has("json")) {
-      // Common `[[Class]]` name aliases.
-      var functionClass = "[object Function]",
-          dateClass = "[object Date]",
-          numberClass = "[object Number]",
-          stringClass = "[object String]",
-          arrayClass = "[object Array]",
-          booleanClass = "[object Boolean]";
-
-      // Detect incomplete support for accessing string characters by index.
-      var charIndexBuggy = has("bug-string-char-index");
-
-      // Define additional utility methods if the `Date` methods are buggy.
-      if (!isExtended) {
-        var floor = Math.floor;
-        // A mapping between the months of the year and the number of days between
-        // January 1st and the first of the respective month.
-        var Months = [0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334];
-        // Internal: Calculates the number of days between the Unix epoch and the
-        // first day of the given month.
-        var getDay = function (year, month) {
-          return Months[month] + 365 * (year - 1970) + floor((year - 1969 + (month = +(month > 1))) / 4) - floor((year - 1901 + month) / 100) + floor((year - 1601 + month) / 400);
-        };
-      }
-
-      // Internal: Determines if a property is a direct property of the given
-      // object. Delegates to the native `Object#hasOwnProperty` method.
-      if (!(isProperty = objectProto.hasOwnProperty)) {
-        isProperty = function (property) {
-          var members = {}, constructor;
-          if ((members.__proto__ = null, members.__proto__ = {
-            // The *proto* property cannot be set multiple times in recent
-            // versions of Firefox and SeaMonkey.
-            "toString": 1
-          }, members).toString != getClass) {
-            // Safari <= 2.0.3 doesn't implement `Object#hasOwnProperty`, but
-            // supports the mutable *proto* property.
-            isProperty = function (property) {
-              // Capture and break the object's prototype chain (see section 8.6.2
-              // of the ES 5.1 spec). The parenthesized expression prevents an
-              // unsafe transformation by the Closure Compiler.
-              var original = this.__proto__, result = property in (this.__proto__ = null, this);
-              // Restore the original prototype chain.
-              this.__proto__ = original;
-              return result;
-            };
-          } else {
-            // Capture a reference to the top-level `Object` constructor.
-            constructor = members.constructor;
-            // Use the `constructor` property to simulate `Object#hasOwnProperty` in
-            // other environments.
-            isProperty = function (property) {
-              var parent = (this.constructor || constructor).prototype;
-              return property in this && !(property in parent && this[property] === parent[property]);
-            };
-          }
-          members = null;
-          return isProperty.call(this, property);
-        };
-      }
-
-      // Internal: Normalizes the `for...in` iteration algorithm across
-      // environments. Each enumerated key is yielded to a `callback` function.
-      forEach = function (object, callback) {
-        var size = 0, Properties, members, property;
-
-        // Tests for bugs in the current environment's `for...in` algorithm. The
-        // `valueOf` property inherits the non-enumerable flag from
-        // `Object.prototype` in older versions of IE, Netscape, and Mozilla.
-        (Properties = function () {
-          this.valueOf = 0;
-        }).prototype.valueOf = 0;
-
-        // Iterate over a new instance of the `Properties` class.
-        members = new Properties();
-        for (property in members) {
-          // Ignore all properties inherited from `Object.prototype`.
-          if (isProperty.call(members, property)) {
-            size++;
-          }
-        }
-        Properties = members = null;
-
-        // Normalize the iteration algorithm.
-        if (!size) {
-          // A list of non-enumerable properties inherited from `Object.prototype`.
-          members = ["valueOf", "toString", "toLocaleString", "propertyIsEnumerable", "isPrototypeOf", "hasOwnProperty", "constructor"];
-          // IE <= 8, Mozilla 1.0, and Netscape 6.2 ignore shadowed non-enumerable
-          // properties.
-          forEach = function (object, callback) {
-            var isFunction = getClass.call(object) == functionClass, property, length;
-            var hasProperty = !isFunction && typeof object.constructor != "function" && objectTypes[typeof object.hasOwnProperty] && object.hasOwnProperty || isProperty;
-            for (property in object) {
-              // Gecko <= 1.0 enumerates the `prototype` property of functions under
-              // certain conditions; IE does not.
-              if (!(isFunction && property == "prototype") && hasProperty.call(object, property)) {
-                callback(property);
-              }
-            }
-            // Manually invoke the callback for each non-enumerable property.
-            for (length = members.length; property = members[--length]; hasProperty.call(object, property) && callback(property));
-          };
-        } else if (size == 2) {
-          // Safari <= 2.0.4 enumerates shadowed properties twice.
-          forEach = function (object, callback) {
-            // Create a set of iterated properties.
-            var members = {}, isFunction = getClass.call(object) == functionClass, property;
-            for (property in object) {
-              // Store each property name to prevent double enumeration. The
-              // `prototype` property of functions is not enumerated due to cross-
-              // environment inconsistencies.
-              if (!(isFunction && property == "prototype") && !isProperty.call(members, property) && (members[property] = 1) && isProperty.call(object, property)) {
-                callback(property);
-              }
-            }
-          };
-        } else {
-          // No bugs detected; use the standard `for...in` algorithm.
-          forEach = function (object, callback) {
-            var isFunction = getClass.call(object) == functionClass, property, isConstructor;
-            for (property in object) {
-              if (!(isFunction && property == "prototype") && isProperty.call(object, property) && !(isConstructor = property === "constructor")) {
-                callback(property);
-              }
-            }
-            // Manually invoke the callback for the `constructor` property due to
-            // cross-environment inconsistencies.
-            if (isConstructor || isProperty.call(object, (property = "constructor"))) {
-              callback(property);
-            }
-          };
-        }
-        return forEach(object, callback);
-      };
-
-      // Public: Serializes a JavaScript `value` as a JSON string. The optional
-      // `filter` argument may specify either a function that alters how object and
-      // array members are serialized, or an array of strings and numbers that
-      // indicates which properties should be serialized. The optional `width`
-      // argument may be either a string or number that specifies the indentation
-      // level of the output.
-      if (!has("json-stringify")) {
-        // Internal: A map of control characters and their escaped equivalents.
-        var Escapes = {
-          92: "\\\\",
-          34: '\\"',
-          8: "\\b",
-          12: "\\f",
-          10: "\\n",
-          13: "\\r",
-          9: "\\t"
-        };
-
-        // Internal: Converts `value` into a zero-padded string such that its
-        // length is at least equal to `width`. The `width` must be <= 6.
-        var leadingZeroes = "000000";
-        var toPaddedString = function (width, value) {
-          // The `|| 0` expression is necessary to work around a bug in
-          // Opera <= 7.54u2 where `0 == -0`, but `String(-0) !== "0"`.
-          return (leadingZeroes + (value || 0)).slice(-width);
-        };
-
-        // Internal: Double-quotes a string `value`, replacing all ASCII control
-        // characters (characters with code unit values between 0 and 31) with
-        // their escaped equivalents. This is an implementation of the
-        // `Quote(value)` operation defined in ES 5.1 section 15.12.3.
-        var unicodePrefix = "\\u00";
-        var quote = function (value) {
-          var result = '"', index = 0, length = value.length, useCharIndex = !charIndexBuggy || length > 10;
-          var symbols = useCharIndex && (charIndexBuggy ? value.split("") : value);
-          for (; index < length; index++) {
-            var charCode = value.charCodeAt(index);
-            // If the character is a control character, append its Unicode or
-            // shorthand escape sequence; otherwise, append the character as-is.
-            switch (charCode) {
-              case 8: case 9: case 10: case 12: case 13: case 34: case 92:
-                result += Escapes[charCode];
-                break;
-              default:
-                if (charCode < 32) {
-                  result += unicodePrefix + toPaddedString(2, charCode.toString(16));
-                  break;
-                }
-                result += useCharIndex ? symbols[index] : value.charAt(index);
-            }
-          }
-          return result + '"';
-        };
-
-        // Internal: Recursively serializes an object. Implements the
-        // `Str(key, holder)`, `JO(value)`, and `JA(value)` operations.
-        var serialize = function (property, object, callback, properties, whitespace, indentation, stack) {
-          var value, className, year, month, date, time, hours, minutes, seconds, milliseconds, results, element, index, length, prefix, result;
-          try {
-            // Necessary for host object support.
-            value = object[property];
-          } catch (exception) {}
-          if (typeof value == "object" && value) {
-            className = getClass.call(value);
-            if (className == dateClass && !isProperty.call(value, "toJSON")) {
-              if (value > -1 / 0 && value < 1 / 0) {
-                // Dates are serialized according to the `Date#toJSON` method
-                // specified in ES 5.1 section 15.9.5.44. See section 15.9.1.15
-                // for the ISO 8601 date time string format.
-                if (getDay) {
-                  // Manually compute the year, month, date, hours, minutes,
-                  // seconds, and milliseconds if the `getUTC*` methods are
-                  // buggy. Adapted from @Yaffle's `date-shim` project.
-                  date = floor(value / 864e5);
-                  for (year = floor(date / 365.2425) + 1970 - 1; getDay(year + 1, 0) <= date; year++);
-                  for (month = floor((date - getDay(year, 0)) / 30.42); getDay(year, month + 1) <= date; month++);
-                  date = 1 + date - getDay(year, month);
-                  // The `time` value specifies the time within the day (see ES
-                  // 5.1 section 15.9.1.2). The formula `(A % B + B) % B` is used
-                  // to compute `A modulo B`, as the `%` operator does not
-                  // correspond to the `modulo` operation for negative numbers.
-                  time = (value % 864e5 + 864e5) % 864e5;
-                  // The hours, minutes, seconds, and milliseconds are obtained by
-                  // decomposing the time within the day. See section 15.9.1.10.
-                  hours = floor(time / 36e5) % 24;
-                  minutes = floor(time / 6e4) % 60;
-                  seconds = floor(time / 1e3) % 60;
-                  milliseconds = time % 1e3;
-                } else {
-                  year = value.getUTCFullYear();
-                  month = value.getUTCMonth();
-                  date = value.getUTCDate();
-                  hours = value.getUTCHours();
-                  minutes = value.getUTCMinutes();
-                  seconds = value.getUTCSeconds();
-                  milliseconds = value.getUTCMilliseconds();
-                }
-                // Serialize extended years correctly.
-                value = (year <= 0 || year >= 1e4 ? (year < 0 ? "-" : "+") + toPaddedString(6, year < 0 ? -year : year) : toPaddedString(4, year)) +
-                  "-" + toPaddedString(2, month + 1) + "-" + toPaddedString(2, date) +
-                  // Months, dates, hours, minutes, and seconds should have two
-                  // digits; milliseconds should have three.
-                  "T" + toPaddedString(2, hours) + ":" + toPaddedString(2, minutes) + ":" + toPaddedString(2, seconds) +
-                  // Milliseconds are optional in ES 5.0, but required in 5.1.
-                  "." + toPaddedString(3, milliseconds) + "Z";
-              } else {
-                value = null;
-              }
-            } else if (typeof value.toJSON == "function" && ((className != numberClass && className != stringClass && className != arrayClass) || isProperty.call(value, "toJSON"))) {
-              // Prototype <= 1.6.1 adds non-standard `toJSON` methods to the
-              // `Number`, `String`, `Date`, and `Array` prototypes. JSON 3
-              // ignores all `toJSON` methods on these objects unless they are
-              // defined directly on an instance.
-              value = value.toJSON(property);
-            }
-          }
-          if (callback) {
-            // If a replacement function was provided, call it to obtain the value
-            // for serialization.
-            value = callback.call(object, property, value);
-          }
-          if (value === null) {
-            return "null";
-          }
-          className = getClass.call(value);
-          if (className == booleanClass) {
-            // Booleans are represented literally.
-            return "" + value;
-          } else if (className == numberClass) {
-            // JSON numbers must be finite. `Infinity` and `NaN` are serialized as
-            // `"null"`.
-            return value > -1 / 0 && value < 1 / 0 ? "" + value : "null";
-          } else if (className == stringClass) {
-            // Strings are double-quoted and escaped.
-            return quote("" + value);
-          }
-          // Recursively serialize objects and arrays.
-          if (typeof value == "object") {
-            // Check for cyclic structures. This is a linear search; performance
-            // is inversely proportional to the number of unique nested objects.
-            for (length = stack.length; length--;) {
-              if (stack[length] === value) {
-                // Cyclic structures cannot be serialized by `JSON.stringify`.
-                throw TypeError();
-              }
-            }
-            // Add the object to the stack of traversed objects.
-            stack.push(value);
-            results = [];
-            // Save the current indentation level and indent one additional level.
-            prefix = indentation;
-            indentation += whitespace;
-            if (className == arrayClass) {
-              // Recursively serialize array elements.
-              for (index = 0, length = value.length; index < length; index++) {
-                element = serialize(index, value, callback, properties, whitespace, indentation, stack);
-                results.push(element === undef ? "null" : element);
-              }
-              result = results.length ? (whitespace ? "[\n" + indentation + results.join(",\n" + indentation) + "\n" + prefix + "]" : ("[" + results.join(",") + "]")) : "[]";
-            } else {
-              // Recursively serialize object members. Members are selected from
-              // either a user-specified list of property names, or the object
-              // itself.
-              forEach(properties || value, function (property) {
-                var element = serialize(property, value, callback, properties, whitespace, indentation, stack);
-                if (element !== undef) {
-                  // According to ES 5.1 section 15.12.3: "If `gap` {whitespace}
-                  // is not the empty string, let `member` {quote(property) + ":"}
-                  // be the concatenation of `member` and the `space` character."
-                  // The "`space` character" refers to the literal space
-                  // character, not the `space` {width} argument provided to
-                  // `JSON.stringify`.
-                  results.push(quote(property) + ":" + (whitespace ? " " : "") + element);
-                }
-              });
-              result = results.length ? (whitespace ? "{\n" + indentation + results.join(",\n" + indentation) + "\n" + prefix + "}" : ("{" + results.join(",") + "}")) : "{}";
-            }
-            // Remove the object from the traversed object stack.
-            stack.pop();
-            return result;
-          }
-        };
-
-        // Public: `JSON.stringify`. See ES 5.1 section 15.12.3.
-        exports.stringify = function (source, filter, width) {
-          var whitespace, callback, properties, className;
-          if (objectTypes[typeof filter] && filter) {
-            if ((className = getClass.call(filter)) == functionClass) {
-              callback = filter;
-            } else if (className == arrayClass) {
-              // Convert the property names array into a makeshift set.
-              properties = {};
-              for (var index = 0, length = filter.length, value; index < length; value = filter[index++], ((className = getClass.call(value)), className == stringClass || className == numberClass) && (properties[value] = 1));
-            }
-          }
-          if (width) {
-            if ((className = getClass.call(width)) == numberClass) {
-              // Convert the `width` to an integer and create a string containing
-              // `width` number of space characters.
-              if ((width -= width % 1) > 0) {
-                for (whitespace = "", width > 10 && (width = 10); whitespace.length < width; whitespace += " ");
-              }
-            } else if (className == stringClass) {
-              whitespace = width.length <= 10 ? width : width.slice(0, 10);
-            }
-          }
-          // Opera <= 7.54u2 discards the values associated with empty string keys
-          // (`""`) only if they are used directly within an object member list
-          // (e.g., `!("" in { "": 1})`).
-          return serialize("", (value = {}, value[""] = source, value), callback, properties, whitespace, "", []);
-        };
-      }
-
-      // Public: Parses a JSON source string.
-      if (!has("json-parse")) {
-        var fromCharCode = String.fromCharCode;
-
-        // Internal: A map of escaped control characters and their unescaped
-        // equivalents.
-        var Unescapes = {
-          92: "\\",
-          34: '"',
-          47: "/",
-          98: "\b",
-          116: "\t",
-          110: "\n",
-          102: "\f",
-          114: "\r"
-        };
-
-        // Internal: Stores the parser state.
-        var Index, Source;
-
-        // Internal: Resets the parser state and throws a `SyntaxError`.
-        var abort = function () {
-          Index = Source = null;
-          throw SyntaxError();
-        };
-
-        // Internal: Returns the next token, or `"$"` if the parser has reached
-        // the end of the source string. A token may be a string, number, `null`
-        // literal, or Boolean literal.
-        var lex = function () {
-          var source = Source, length = source.length, value, begin, position, isSigned, charCode;
-          while (Index < length) {
-            charCode = source.charCodeAt(Index);
-            switch (charCode) {
-              case 9: case 10: case 13: case 32:
-                // Skip whitespace tokens, including tabs, carriage returns, line
-                // feeds, and space characters.
-                Index++;
-                break;
-              case 123: case 125: case 91: case 93: case 58: case 44:
-                // Parse a punctuator token (`{`, `}`, `[`, `]`, `:`, or `,`) at
-                // the current position.
-                value = charIndexBuggy ? source.charAt(Index) : source[Index];
-                Index++;
-                return value;
-              case 34:
-                // `"` delimits a JSON string; advance to the next character and
-                // begin parsing the string. String tokens are prefixed with the
-                // sentinel `@` character to distinguish them from punctuators and
-                // end-of-string tokens.
-                for (value = "@", Index++; Index < length;) {
-                  charCode = source.charCodeAt(Index);
-                  if (charCode < 32) {
-                    // Unescaped ASCII control characters (those with a code unit
-                    // less than the space character) are not permitted.
-                    abort();
-                  } else if (charCode == 92) {
-                    // A reverse solidus (`\`) marks the beginning of an escaped
-                    // control character (including `"`, `\`, and `/`) or Unicode
-                    // escape sequence.
-                    charCode = source.charCodeAt(++Index);
-                    switch (charCode) {
-                      case 92: case 34: case 47: case 98: case 116: case 110: case 102: case 114:
-                        // Revive escaped control characters.
-                        value += Unescapes[charCode];
-                        Index++;
-                        break;
-                      case 117:
-                        // `\u` marks the beginning of a Unicode escape sequence.
-                        // Advance to the first character and validate the
-                        // four-digit code point.
-                        begin = ++Index;
-                        for (position = Index + 4; Index < position; Index++) {
-                          charCode = source.charCodeAt(Index);
-                          // A valid sequence comprises four hexdigits (case-
-                          // insensitive) that form a single hexadecimal value.
-                          if (!(charCode >= 48 && charCode <= 57 || charCode >= 97 && charCode <= 102 || charCode >= 65 && charCode <= 70)) {
-                            // Invalid Unicode escape sequence.
-                            abort();
-                          }
-                        }
-                        // Revive the escaped character.
-                        value += fromCharCode("0x" + source.slice(begin, Index));
-                        break;
-                      default:
-                        // Invalid escape sequence.
-                        abort();
-                    }
-                  } else {
-                    if (charCode == 34) {
-                      // An unescaped double-quote character marks the end of the
-                      // string.
-                      break;
-                    }
-                    charCode = source.charCodeAt(Index);
-                    begin = Index;
-                    // Optimize for the common case where a string is valid.
-                    while (charCode >= 32 && charCode != 92 && charCode != 34) {
-                      charCode = source.charCodeAt(++Index);
-                    }
-                    // Append the string as-is.
-                    value += source.slice(begin, Index);
-                  }
-                }
-                if (source.charCodeAt(Index) == 34) {
-                  // Advance to the next character and return the revived string.
-                  Index++;
-                  return value;
-                }
-                // Unterminated string.
-                abort();
-              default:
-                // Parse numbers and literals.
-                begin = Index;
-                // Advance past the negative sign, if one is specified.
-                if (charCode == 45) {
-                  isSigned = true;
-                  charCode = source.charCodeAt(++Index);
-                }
-                // Parse an integer or floating-point value.
-                if (charCode >= 48 && charCode <= 57) {
-                  // Leading zeroes are interpreted as octal literals.
-                  if (charCode == 48 && ((charCode = source.charCodeAt(Index + 1)), charCode >= 48 && charCode <= 57)) {
-                    // Illegal octal literal.
-                    abort();
-                  }
-                  isSigned = false;
-                  // Parse the integer component.
-                  for (; Index < length && ((charCode = source.charCodeAt(Index)), charCode >= 48 && charCode <= 57); Index++);
-                  // Floats cannot contain a leading decimal point; however, this
-                  // case is already accounted for by the parser.
-                  if (source.charCodeAt(Index) == 46) {
-                    position = ++Index;
-                    // Parse the decimal component.
-                    for (; position < length && ((charCode = source.charCodeAt(position)), charCode >= 48 && charCode <= 57); position++);
-                    if (position == Index) {
-                      // Illegal trailing decimal.
-                      abort();
-                    }
-                    Index = position;
-                  }
-                  // Parse exponents. The `e` denoting the exponent is
-                  // case-insensitive.
-                  charCode = source.charCodeAt(Index);
-                  if (charCode == 101 || charCode == 69) {
-                    charCode = source.charCodeAt(++Index);
-                    // Skip past the sign following the exponent, if one is
-                    // specified.
-                    if (charCode == 43 || charCode == 45) {
-                      Index++;
-                    }
-                    // Parse the exponential component.
-                    for (position = Index; position < length && ((charCode = source.charCodeAt(position)), charCode >= 48 && charCode <= 57); position++);
-                    if (position == Index) {
-                      // Illegal empty exponent.
-                      abort();
-                    }
-                    Index = position;
-                  }
-                  // Coerce the parsed value to a JavaScript number.
-                  return +source.slice(begin, Index);
-                }
-                // A negative sign may only precede numbers.
-                if (isSigned) {
-                  abort();
-                }
-                // `true`, `false`, and `null` literals.
-                if (source.slice(Index, Index + 4) == "true") {
-                  Index += 4;
-                  return true;
-                } else if (source.slice(Index, Index + 5) == "false") {
-                  Index += 5;
-                  return false;
-                } else if (source.slice(Index, Index + 4) == "null") {
-                  Index += 4;
-                  return null;
-                }
-                // Unrecognized token.
-                abort();
-            }
-          }
-          // Return the sentinel `$` character if the parser has reached the end
-          // of the source string.
-          return "$";
-        };
-
-        // Internal: Parses a JSON `value` token.
-        var get = function (value) {
-          var results, hasMembers;
-          if (value == "$") {
-            // Unexpected end of input.
-            abort();
-          }
-          if (typeof value == "string") {
-            if ((charIndexBuggy ? value.charAt(0) : value[0]) == "@") {
-              // Remove the sentinel `@` character.
-              return value.slice(1);
-            }
-            // Parse object and array literals.
-            if (value == "[") {
-              // Parses a JSON array, returning a new JavaScript array.
-              results = [];
-              for (;; hasMembers || (hasMembers = true)) {
-                value = lex();
-                // A closing square bracket marks the end of the array literal.
-                if (value == "]") {
-                  break;
-                }
-                // If the array literal contains elements, the current token
-                // should be a comma separating the previous element from the
-                // next.
-                if (hasMembers) {
-                  if (value == ",") {
-                    value = lex();
-                    if (value == "]") {
-                      // Unexpected trailing `,` in array literal.
-                      abort();
-                    }
-                  } else {
-                    // A `,` must separate each array element.
-                    abort();
-                  }
-                }
-                // Elisions and leading commas are not permitted.
-                if (value == ",") {
-                  abort();
-                }
-                results.push(get(value));
-              }
-              return results;
-            } else if (value == "{") {
-              // Parses a JSON object, returning a new JavaScript object.
-              results = {};
-              for (;; hasMembers || (hasMembers = true)) {
-                value = lex();
-                // A closing curly brace marks the end of the object literal.
-                if (value == "}") {
-                  break;
-                }
-                // If the object literal contains members, the current token
-                // should be a comma separator.
-                if (hasMembers) {
-                  if (value == ",") {
-                    value = lex();
-                    if (value == "}") {
-                      // Unexpected trailing `,` in object literal.
-                      abort();
-                    }
-                  } else {
-                    // A `,` must separate each object member.
-                    abort();
-                  }
-                }
-                // Leading commas are not permitted, object property names must be
-                // double-quoted strings, and a `:` must separate each property
-                // name and value.
-                if (value == "," || typeof value != "string" || (charIndexBuggy ? value.charAt(0) : value[0]) != "@" || lex() != ":") {
-                  abort();
-                }
-                results[value.slice(1)] = get(lex());
-              }
-              return results;
-            }
-            // Unexpected token encountered.
-            abort();
-          }
-          return value;
-        };
-
-        // Internal: Updates a traversed object member.
-        var update = function (source, property, callback) {
-          var element = walk(source, property, callback);
-          if (element === undef) {
-            delete source[property];
-          } else {
-            source[property] = element;
-          }
-        };
-
-        // Internal: Recursively traverses a parsed JSON object, invoking the
-        // `callback` function for each value. This is an implementation of the
-        // `Walk(holder, name)` operation defined in ES 5.1 section 15.12.2.
-        var walk = function (source, property, callback) {
-          var value = source[property], length;
-          if (typeof value == "object" && value) {
-            // `forEach` can't be used to traverse an array in Opera <= 8.54
-            // because its `Object#hasOwnProperty` implementation returns `false`
-            // for array indices (e.g., `![1, 2, 3].hasOwnProperty("0")`).
-            if (getClass.call(value) == arrayClass) {
-              for (length = value.length; length--;) {
-                update(value, length, callback);
-              }
-            } else {
-              forEach(value, function (property) {
-                update(value, property, callback);
-              });
-            }
-          }
-          return callback.call(source, property, value);
-        };
-
-        // Public: `JSON.parse`. See ES 5.1 section 15.12.2.
-        exports.parse = function (source, callback) {
-          var result, value;
-          Index = 0;
-          Source = "" + source;
-          result = get(lex());
-          // If a JSON string contains multiple tokens, it is invalid.
-          if (lex() != "$") {
-            abort();
-          }
-          // Reset the parser state.
-          Index = Source = null;
-          return callback && getClass.call(callback) == functionClass ? walk((value = {}, value[""] = result, value), "", callback) : result;
-        };
-      }
-    }
-
-    exports["runInContext"] = runInContext;
-    return exports;
-  }
-
-  if (freeExports && !isLoader) {
-    // Export for CommonJS environments.
-    runInContext(root, freeExports);
-  } else {
-    // Export for web browsers and JavaScript engines.
-    var nativeJSON = root.JSON,
-        previousJSON = root["JSON3"],
-        isRestored = false;
-
-    var JSON3 = runInContext(root, (root["JSON3"] = {
-      // Public: Restores the original value of the global `JSON` object and
-      // returns a reference to the `JSON3` object.
-      "noConflict": function () {
-        if (!isRestored) {
-          isRestored = true;
-          root.JSON = nativeJSON;
-          root["JSON3"] = previousJSON;
-          nativeJSON = previousJSON = null;
-        }
-        return JSON3;
-      }
-    }));
-
-    root.JSON = {
-      "parse": JSON3.parse,
-      "stringify": JSON3.stringify
-    };
-  }
-
-  // Export for asynchronous module loaders.
-  if (isLoader) {
-    define(function () {
-      return JSON3;
-    });
-  }
-}).call(this);
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{}],51:[function(require,module,exports){
-module.exports = toArray
-
-function toArray(list, index) {
-    var array = []
-
-    index = index || 0
-
-    for (var i = index || 0; i < list.length; i++) {
-        array[i - index] = list[i]
-    }
-
-    return array
-}
-
-},{}],52:[function(require,module,exports){
-(function (global){
-/*! https://mths.be/utf8js v2.0.0 by @mathias */
-;(function(root) {
-
-	// Detect free variables `exports`
-	var freeExports = typeof exports == 'object' && exports;
-
-	// Detect free variable `module`
-	var freeModule = typeof module == 'object' && module &&
-		module.exports == freeExports && module;
-
-	// Detect free variable `global`, from Node.js or Browserified code,
-	// and use it as `root`
-	var freeGlobal = typeof global == 'object' && global;
-	if (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal) {
-		root = freeGlobal;
-	}
-
-	/*--------------------------------------------------------------------------*/
-
-	var stringFromCharCode = String.fromCharCode;
-
-	// Taken from https://mths.be/punycode
-	function ucs2decode(string) {
-		var output = [];
-		var counter = 0;
-		var length = string.length;
-		var value;
-		var extra;
-		while (counter < length) {
-			value = string.charCodeAt(counter++);
-			if (value >= 0xD800 && value <= 0xDBFF && counter < length) {
-				// high surrogate, and there is a next character
-				extra = string.charCodeAt(counter++);
-				if ((extra & 0xFC00) == 0xDC00) { // low surrogate
-					output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);
-				} else {
-					// unmatched surrogate; only append this code unit, in case the next
-					// code unit is the high surrogate of a surrogate pair
-					output.push(value);
-					counter--;
-				}
-			} else {
-				output.push(value);
-			}
-		}
-		return output;
-	}
-
-	// Taken from https://mths.be/punycode
-	function ucs2encode(array) {
-		var length = array.length;
-		var index = -1;
-		var value;
-		var output = '';
-		while (++index < length) {
-			value = array[index];
-			if (value > 0xFFFF) {
-				value -= 0x10000;
-				output += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);
-				value = 0xDC00 | value & 0x3FF;
-			}
-			output += stringFromCharCode(value);
-		}
-		return output;
-	}
-
-	function checkScalarValue(codePoint) {
-		if (codePoint >= 0xD800 && codePoint <= 0xDFFF) {
-			throw Error(
-				'Lone surrogate U+' + codePoint.toString(16).toUpperCase() +
-				' is not a scalar value'
-			);
-		}
-	}
-	/*--------------------------------------------------------------------------*/
-
-	function createByte(codePoint, shift) {
-		return stringFromCharCode(((codePoint >> shift) & 0x3F) | 0x80);
-	}
-
-	function encodeCodePoint(codePoint) {
-		if ((codePoint & 0xFFFFFF80) == 0) { // 1-byte sequence
-			return stringFromCharCode(codePoint);
-		}
-		var symbol = '';
-		if ((codePoint & 0xFFFFF800) == 0) { // 2-byte sequence
-			symbol = stringFromCharCode(((codePoint >> 6) & 0x1F) | 0xC0);
-		}
-		else if ((codePoint & 0xFFFF0000) == 0) { // 3-byte sequence
-			checkScalarValue(codePoint);
-			symbol = stringFromCharCode(((codePoint >> 12) & 0x0F) | 0xE0);
-			symbol += createByte(codePoint, 6);
-		}
-		else if ((codePoint & 0xFFE00000) == 0) { // 4-byte sequence
-			symbol = stringFromCharCode(((codePoint >> 18) & 0x07) | 0xF0);
-			symbol += createByte(codePoint, 12);
-			symbol += createByte(codePoint, 6);
-		}
-		symbol += stringFromCharCode((codePoint & 0x3F) | 0x80);
-		return symbol;
-	}
-
-	function utf8encode(string) {
-		var codePoints = ucs2decode(string);
-		var length = codePoints.length;
-		var index = -1;
-		var codePoint;
-		var byteString = '';
-		while (++index < length) {
-			codePoint = codePoints[index];
-			byteString += encodeCodePoint(codePoint);
-		}
-		return byteString;
-	}
-
-	/*--------------------------------------------------------------------------*/
-
-	function readContinuationByte() {
-		if (byteIndex >= byteCount) {
-			throw Error('Invalid byte index');
-		}
-
-		var continuationByte = byteArray[byteIndex] & 0xFF;
-		byteIndex++;
-
-		if ((continuationByte & 0xC0) == 0x80) {
-			return continuationByte & 0x3F;
-		}
-
-		// If we end up here, it’s not a continuation byte
-		throw Error('Invalid continuation byte');
-	}
-
-	function decodeSymbol() {
-		var byte1;
-		var byte2;
-		var byte3;
-		var byte4;
-		var codePoint;
-
-		if (byteIndex > byteCount) {
-			throw Error('Invalid byte index');
-		}
-
-		if (byteIndex == byteCount) {
-			return false;
-		}
-
-		// Read first byte
-		byte1 = byteArray[byteIndex] & 0xFF;
-		byteIndex++;
-
-		// 1-byte sequence (no continuation bytes)
-		if ((byte1 & 0x80) == 0) {
-			return byte1;
-		}
-
-		// 2-byte sequence
-		if ((byte1 & 0xE0) == 0xC0) {
-			var byte2 = readContinuationByte();
-			codePoint = ((byte1 & 0x1F) << 6) | byte2;
-			if (codePoint >= 0x80) {
-				return codePoint;
-			} else {
-				throw Error('Invalid continuation byte');
-			}
-		}
-
-		// 3-byte sequence (may include unpaired surrogates)
-		if ((byte1 & 0xF0) == 0xE0) {
-			byte2 = readContinuationByte();
-			byte3 = readContinuationByte();
-			codePoint = ((byte1 & 0x0F) << 12) | (byte2 << 6) | byte3;
-			if (codePoint >= 0x0800) {
-				checkScalarValue(codePoint);
-				return codePoint;
-			} else {
-				throw Error('Invalid continuation byte');
-			}
-		}
-
-		// 4-byte sequence
-		if ((byte1 & 0xF8) == 0xF0) {
-			byte2 = readContinuationByte();
-			byte3 = readContinuationByte();
-			byte4 = readContinuationByte();
-			codePoint = ((byte1 & 0x0F) << 0x12) | (byte2 << 0x0C) |
-				(byte3 << 0x06) | byte4;
-			if (codePoint >= 0x010000 && codePoint <= 0x10FFFF) {
-				return codePoint;
-			}
-		}
-
-		throw Error('Invalid UTF-8 detected');
-	}
-
-	var byteArray;
-	var byteCount;
-	var byteIndex;
-	function utf8decode(byteString) {
-		byteArray = ucs2decode(byteString);
-		byteCount = byteArray.length;
-		byteIndex = 0;
-		var codePoints = [];
-		var tmp;
-		while ((tmp = decodeSymbol()) !== false) {
-			codePoints.push(tmp);
-		}
-		return ucs2encode(codePoints);
-	}
-
-	/*--------------------------------------------------------------------------*/
-
-	var utf8 = {
-		'version': '2.0.0',
-		'encode': utf8encode,
-		'decode': utf8decode
-	};
-
-	// Some AMD build optimizers, like r.js, check for specific condition patterns
-	// like the following:
-	if (
-		typeof define == 'function' &&
-		typeof define.amd == 'object' &&
-		define.amd
-	) {
-		define(function() {
-			return utf8;
-		});
-	}	else if (freeExports && !freeExports.nodeType) {
-		if (freeModule) { // in Node.js or RingoJS v0.8.0+
-			freeModule.exports = utf8;
-		} else { // in Narwhal or RingoJS v0.7.0-
-			var object = {};
-			var hasOwnProperty = object.hasOwnProperty;
-			for (var key in utf8) {
-				hasOwnProperty.call(utf8, key) && (freeExports[key] = utf8[key]);
-			}
-		}
-	} else { // in Rhino or a web browser
-		root.utf8 = utf8;
-	}
-
-}(this));
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{}],53:[function(require,module,exports){
-'use strict';
-
-var alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split('')
-  , length = 64
-  , map = {}
-  , seed = 0
-  , i = 0
-  , prev;
-
-/**
- * Return a string representing the specified number.
- *
- * @param {Number} num The number to convert.
- * @returns {String} The string representation of the number.
- * @api public
- */
-function encode(num) {
-  var encoded = '';
-
-  do {
-    encoded = alphabet[num % length] + encoded;
-    num = Math.floor(num / length);
-  } while (num > 0);
-
-  return encoded;
-}
-
-/**
- * Return the integer value specified by the given string.
- *
- * @param {String} str The string to convert.
- * @returns {Number} The integer value represented by the string.
- * @api public
- */
-function decode(str) {
-  var decoded = 0;
-
-  for (i = 0; i < str.length; i++) {
-    decoded = decoded * length + map[str.charAt(i)];
-  }
-
-  return decoded;
-}
-
-/**
- * Yeast: A tiny growing id generator.
- *
- * @returns {String} A unique id.
- * @api public
- */
-function yeast() {
-  var now = encode(+new Date());
-
-  if (now !== prev) return seed = 0, prev = now;
-  return now +'.'+ encode(seed++);
-}
-
-//
-// Map each character to its index.
-//
-for (; i < length; i++) map[alphabet[i]] = i;
-
-//
-// Expose the `yeast`, `encode` and `decode` functions.
-//
-yeast.encode = encode;
-yeast.decode = decode;
-module.exports = yeast;
-
-},{}]},{},[4])
-//# 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e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require==\"function\"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error(\"Cannot find module '\"+o+\"'\");throw f.code=\"MODULE_NOT_FOUND\",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require==\"function\"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})","const m = require('mithril')\nconst socket = require('../socket')\nconst store = require('./store')\n\nconst Content = { }\n\nContent.vm = (function() {\n  let vm = {}\n\n  vm.storeUpdated = function() {\n    vm.content = store.get('content') || {}\n    m.redraw()\n  }\n\n  vm.init = function() {\n    vm.content = store.get('content') || {}\n    store.listen('content', vm.storeUpdated)\n  }\n\n  vm.onunload = function() {\n    store.unlisten('content')\n  }\n\n  vm.updated = function(name, control) {\n    vm.content[name] = control.target.value\n    store.set('content', vm.content)\n  }\n\n  vm.display = function() {\n    socket.emit('content.display', vm.content)\n  }\n\n  vm.hide = function() {\n    socket.emit('content.hide')\n  }\n\n  return vm\n})()\n\nContent.controller = function() {\n  Content.vm.init()\n\n  this.onunload = Content.vm.onunload\n}\n\nContent.view = function() {\n  return m('div', [\n    m('h3', 'Content'),\n    m('div', { class: 'row' }, [\n      m('div', { class: 'small-12 columns' }, [\n        m('label', [\n          'HTML (use <%- name %> and <%- title %> for values)',\n          m('textarea', {\n            rows: '4',\n            oninput: Content.vm.updated.bind(null, 'html'),\n            value: Content.vm.content.html || '',\n          })\n        ]),\n      ]),\n      m('div', { class: 'small-12 columns' }, [\n        m('label', [\n          'CSS',\n          m('textarea', {\n            rows: '4',\n            oninput: Content.vm.updated.bind(null, 'css'),\n            value: Content.vm.content.css || '',\n          })\n        ]),\n      ]),\n      m('div', { class: 'small-12 columns' }, [\n        m('label', [\n          'Name',\n          m('input[type=text]', {\n            oninput: Content.vm.updated.bind(null, 'name'),\n            value: Content.vm.content.name || '',\n          })\n        ]),\n      ]),\n      m('div', { class: 'small-12 columns' }, [\n        m('label', [\n          'Title',\n          m('input[type=text]', {\n            oninput: Content.vm.updated.bind(null, 'title'),\n            value: Content.vm.content.title || '',\n          })\n        ]),\n      ]),\n      m('a.button', {\n        onclick: Content.vm.display\n      }, 'Display'),\n      m('a.button.alert', {\n        onclick: Content.vm.hide\n      }, 'Hide'),\n    ]),\n  ])\n}\n\nmodule.exports = Content\n","const m = require('mithril')\n\nconst Menu = {\n  controller: function() {\n    return {}\n  },\n\n  view: function(ctrl) {\n    return m('div', [\n      m('h3', 'Menu'),\n      m('ul', [\n        m('li', [\n          m('a', { href: '/', config: m.route }, 'Home'),\n        ]),\n        m('li', [\n          m('a', { href: '/content', config: m.route }, 'Content'),\n        ])\n      ]),\n    ])\n  },\n}\n\nmodule.exports = Menu\n","const socket = require('../socket')\nconst storage = {}\nconst events = {}\n\nconst store = {\n  get: function(name) {\n    return storage[name]\n  },\n\n  set: function(name, value, dontSend) {\n    storage[name] = value\n\n    if (dontSend) {\n      if (events[name]) {\n        events[name]()\n      }\n      return\n    }\n\n    socket.emit('store', {\n      name,\n      value,\n    })\n  },\n\n  listen: function(name, caller) {\n    events[name] = caller\n  },\n\n  unlisten: function(name) {\n    delete events[name]\n  },\n}\n\nsocket.on('store', (data) => {\n  store.set(data.name, data.value, true)\n})\n\nmodule.exports = store\n","/**\n * @license\n * caspar-sup <https://filadelfia.is>\n * Copyright 2015 Jonatan Nilsson <http://jonatan.nilsson.is/>\n *\n * Available under WTFPL License (http://www.wtfpl.net/txt/copying/)\n*/\n\n'use strict'\n\n//Add debug components to window. Allows us to play with controls\n//in the console. \nwindow.components = {}\n\nrequire('./socket')\nrequire('./controller/store')\n\nconst m = require('mithril')\nconst Menu = require('./controller/menu')\nconst Content = require('./controller/content')\n\nm.mount(document.getElementById('menu'), Menu)\n\nm.route(document.getElementById('content'), '/', {\n    '/': {},\n    '/content': Content,\n});\n","const io = require('socket.io-client')\n\nconst socket = io()\n\nmodule.exports = socket\n","module.exports = after\n\nfunction after(count, callback, err_cb) {\n    var bail = false\n    err_cb = err_cb || noop\n    proxy.count = count\n\n    return (count === 0) ? callback() : proxy\n\n    function proxy(err, result) {\n        if (proxy.count <= 0) {\n            throw new Error('after called too many times')\n        }\n        --proxy.count\n\n        // after first error, rest are passed to err_cb\n        if (err) {\n            bail = true\n            callback(err)\n            // future error callbacks will go to error handler\n            callback = err_cb\n        } else if (proxy.count === 0 && !bail) {\n            callback(null, result)\n        }\n    }\n}\n\nfunction noop() {}\n","/**\n * An abstraction for slicing an arraybuffer even when\n * ArrayBuffer.prototype.slice is not supported\n *\n * @api public\n */\n\nmodule.exports = function(arraybuffer, start, end) {\n  var bytes = arraybuffer.byteLength;\n  start = start || 0;\n  end = end || bytes;\n\n  if (arraybuffer.slice) { return arraybuffer.slice(start, end); }\n\n  if (start < 0) { start += bytes; }\n  if (end < 0) { end += bytes; }\n  if (end > bytes) { end = bytes; }\n\n  if (start >= bytes || start >= end || bytes === 0) {\n    return new ArrayBuffer(0);\n  }\n\n  var abv = new Uint8Array(arraybuffer);\n  var result = new Uint8Array(end - start);\n  for (var i = start, ii = 0; i < end; i++, ii++) {\n    result[ii] = abv[i];\n  }\n  return result.buffer;\n};\n","\n/**\n * Expose `Backoff`.\n */\n\nmodule.exports = Backoff;\n\n/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\n\nfunction Backoff(opts) {\n  opts = opts || {};\n  this.ms = opts.min || 100;\n  this.max = opts.max || 10000;\n  this.factor = opts.factor || 2;\n  this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n  this.attempts = 0;\n}\n\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\n\nBackoff.prototype.duration = function(){\n  var ms = this.ms * Math.pow(this.factor, this.attempts++);\n  if (this.jitter) {\n    var rand =  Math.random();\n    var deviation = Math.floor(rand * this.jitter * ms);\n    ms = (Math.floor(rand * 10) & 1) == 0  ? ms - deviation : ms + deviation;\n  }\n  return Math.min(ms, this.max) | 0;\n};\n\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\n\nBackoff.prototype.reset = function(){\n  this.attempts = 0;\n};\n\n/**\n * Set the minimum duration\n *\n * @api public\n */\n\nBackoff.prototype.setMin = function(min){\n  this.ms = min;\n};\n\n/**\n * Set the maximum duration\n *\n * @api public\n */\n\nBackoff.prototype.setMax = function(max){\n  this.max = max;\n};\n\n/**\n * Set the jitter\n *\n * @api public\n */\n\nBackoff.prototype.setJitter = function(jitter){\n  this.jitter = jitter;\n};\n\n","/*\n * base64-arraybuffer\n * https://github.com/niklasvh/base64-arraybuffer\n *\n * Copyright (c) 2012 Niklas von Hertzen\n * Licensed under the MIT license.\n */\n(function(chars){\n  \"use strict\";\n\n  exports.encode = function(arraybuffer) {\n    var bytes = new Uint8Array(arraybuffer),\n    i, len = bytes.length, base64 = \"\";\n\n    for (i = 0; i < len; i+=3) {\n      base64 += chars[bytes[i] >> 2];\n      base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n      base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n      base64 += chars[bytes[i + 2] & 63];\n    }\n\n    if ((len % 3) === 2) {\n      base64 = base64.substring(0, base64.length - 1) + \"=\";\n    } else if (len % 3 === 1) {\n      base64 = base64.substring(0, base64.length - 2) + \"==\";\n    }\n\n    return base64;\n  };\n\n  exports.decode =  function(base64) {\n    var bufferLength = base64.length * 0.75,\n    len = base64.length, i, p = 0,\n    encoded1, encoded2, encoded3, encoded4;\n\n    if (base64[base64.length - 1] === \"=\") {\n      bufferLength--;\n      if (base64[base64.length - 2] === \"=\") {\n        bufferLength--;\n      }\n    }\n\n    var arraybuffer = new ArrayBuffer(bufferLength),\n    bytes = new Uint8Array(arraybuffer);\n\n    for (i = 0; i < len; i+=4) {\n      encoded1 = chars.indexOf(base64[i]);\n      encoded2 = chars.indexOf(base64[i+1]);\n      encoded3 = chars.indexOf(base64[i+2]);\n      encoded4 = chars.indexOf(base64[i+3]);\n\n      bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n      bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n      bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n\n    return arraybuffer;\n  };\n})(\"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/\");\n","/**\n * Create a blob builder even when vendor prefixes exist\n */\n\nvar BlobBuilder = global.BlobBuilder\n  || global.WebKitBlobBuilder\n  || global.MSBlobBuilder\n  || global.MozBlobBuilder;\n\n/**\n * Check if Blob constructor is supported\n */\n\nvar blobSupported = (function() {\n  try {\n    var a = new Blob(['hi']);\n    return a.size === 2;\n  } catch(e) {\n    return false;\n  }\n})();\n\n/**\n * Check if Blob constructor supports ArrayBufferViews\n * Fails in Safari 6, so we need to map to ArrayBuffers there.\n */\n\nvar blobSupportsArrayBufferView = blobSupported && (function() {\n  try {\n    var b = new Blob([new Uint8Array([1,2])]);\n    return b.size === 2;\n  } catch(e) {\n    return false;\n  }\n})();\n\n/**\n * Check if BlobBuilder is supported\n */\n\nvar blobBuilderSupported = BlobBuilder\n  && BlobBuilder.prototype.append\n  && BlobBuilder.prototype.getBlob;\n\n/**\n * Helper function that maps ArrayBufferViews to ArrayBuffers\n * Used by BlobBuilder constructor and old browsers that didn't\n * support it in the Blob constructor.\n */\n\nfunction mapArrayBufferViews(ary) {\n  for (var i = 0; i < ary.length; i++) {\n    var chunk = ary[i];\n    if (chunk.buffer instanceof ArrayBuffer) {\n      var buf = chunk.buffer;\n\n      // if this is a subarray, make a copy so we only\n      // include the subarray region from the underlying buffer\n      if (chunk.byteLength !== buf.byteLength) {\n        var copy = new Uint8Array(chunk.byteLength);\n        copy.set(new Uint8Array(buf, chunk.byteOffset, chunk.byteLength));\n        buf = copy.buffer;\n      }\n\n      ary[i] = buf;\n    }\n  }\n}\n\nfunction BlobBuilderConstructor(ary, options) {\n  options = options || {};\n\n  var bb = new BlobBuilder();\n  mapArrayBufferViews(ary);\n\n  for (var i = 0; i < ary.length; i++) {\n    bb.append(ary[i]);\n  }\n\n  return (options.type) ? bb.getBlob(options.type) : bb.getBlob();\n};\n\nfunction BlobConstructor(ary, options) {\n  mapArrayBufferViews(ary);\n  return new Blob(ary, options || {});\n};\n\nmodule.exports = (function() {\n  if (blobSupported) {\n    return blobSupportsArrayBufferView ? global.Blob : BlobConstructor;\n  } else if (blobBuilderSupported) {\n    return BlobBuilderConstructor;\n  } else {\n    return undefined;\n  }\n})();\n","","/**\n * Slice reference.\n */\n\nvar slice = [].slice;\n\n/**\n * Bind `obj` to `fn`.\n *\n * @param {Object} obj\n * @param {Function|String} fn or string\n * @return {Function}\n * @api public\n */\n\nmodule.exports = function(obj, fn){\n  if ('string' == typeof fn) fn = obj[fn];\n  if ('function' != typeof fn) throw new Error('bind() requires a function');\n  var args = slice.call(arguments, 2);\n  return function(){\n    return fn.apply(obj, args.concat(slice.call(arguments)));\n  }\n};\n","\n/**\n * Expose `Emitter`.\n */\n\nmodule.exports = Emitter;\n\n/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nfunction Emitter(obj) {\n  if (obj) return mixin(obj);\n};\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n  for (var key in Emitter.prototype) {\n    obj[key] = Emitter.prototype[key];\n  }\n  return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n  (this._callbacks[event] = this._callbacks[event] || [])\n    .push(fn);\n  return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n  var self = this;\n  this._callbacks = this._callbacks || {};\n\n  function on() {\n    self.off(event, on);\n    fn.apply(this, arguments);\n  }\n\n  on.fn = fn;\n  this.on(event, on);\n  return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n\n  // all\n  if (0 == arguments.length) {\n    this._callbacks = {};\n    return this;\n  }\n\n  // specific event\n  var callbacks = this._callbacks[event];\n  if (!callbacks) return this;\n\n  // remove all handlers\n  if (1 == arguments.length) {\n    delete this._callbacks[event];\n    return this;\n  }\n\n  // remove specific handler\n  var cb;\n  for (var i = 0; i < callbacks.length; i++) {\n    cb = callbacks[i];\n    if (cb === fn || cb.fn === fn) {\n      callbacks.splice(i, 1);\n      break;\n    }\n  }\n  return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n  this._callbacks = this._callbacks || {};\n  var args = [].slice.call(arguments, 1)\n    , callbacks = this._callbacks[event];\n\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\n      callbacks[i].apply(this, args);\n    }\n  }\n\n  return this;\n};\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n  this._callbacks = this._callbacks || {};\n  return this._callbacks[event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n  return !! this.listeners(event).length;\n};\n","\nmodule.exports = function(a, b){\n  var fn = function(){};\n  fn.prototype = b.prototype;\n  a.prototype = new fn;\n  a.prototype.constructor = a;\n};","\n/**\n * This is the web browser implementation of `debug()`.\n *\n * Expose `debug()` as the module.\n */\n\nexports = module.exports = require('./debug');\nexports.log = log;\nexports.formatArgs = formatArgs;\nexports.save = save;\nexports.load = load;\nexports.useColors = useColors;\nexports.storage = 'undefined' != typeof chrome\n               && 'undefined' != typeof chrome.storage\n                  ? chrome.storage.local\n                  : localstorage();\n\n/**\n * Colors.\n */\n\nexports.colors = [\n  'lightseagreen',\n  'forestgreen',\n  'goldenrod',\n  'dodgerblue',\n  'darkorchid',\n  'crimson'\n];\n\n/**\n * Currently only WebKit-based Web Inspectors, Firefox >= v31,\n * and the Firebug extension (any Firefox version) are known\n * to support \"%c\" CSS customizations.\n *\n * TODO: add a `localStorage` variable to explicitly enable/disable colors\n */\n\nfunction useColors() {\n  // is webkit? http://stackoverflow.com/a/16459606/376773\n  return ('WebkitAppearance' in document.documentElement.style) ||\n    // is firebug? http://stackoverflow.com/a/398120/376773\n    (window.console && (console.firebug || (console.exception && console.table))) ||\n    // is firefox >= v31?\n    // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages\n    (navigator.userAgent.toLowerCase().match(/firefox\\/(\\d+)/) && parseInt(RegExp.$1, 10) >= 31);\n}\n\n/**\n * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.\n */\n\nexports.formatters.j = function(v) {\n  return JSON.stringify(v);\n};\n\n\n/**\n * Colorize log arguments if enabled.\n *\n * @api public\n */\n\nfunction formatArgs() {\n  var args = arguments;\n  var useColors = this.useColors;\n\n  args[0] = (useColors ? '%c' : '')\n    + this.namespace\n    + (useColors ? ' %c' : ' ')\n    + args[0]\n    + (useColors ? '%c ' : ' ')\n    + '+' + exports.humanize(this.diff);\n\n  if (!useColors) return args;\n\n  var c = 'color: ' + this.color;\n  args = [args[0], c, 'color: inherit'].concat(Array.prototype.slice.call(args, 1));\n\n  // the final \"%c\" is somewhat tricky, because there could be other\n  // arguments passed either before or after the %c, so we need to\n  // figure out the correct index to insert the CSS into\n  var index = 0;\n  var lastC = 0;\n  args[0].replace(/%[a-z%]/g, function(match) {\n    if ('%%' === match) return;\n    index++;\n    if ('%c' === match) {\n      // we only are interested in the *last* %c\n      // (the user may have provided their own)\n      lastC = index;\n    }\n  });\n\n  args.splice(lastC, 0, c);\n  return args;\n}\n\n/**\n * Invokes `console.log()` when available.\n * No-op when `console.log` is not a \"function\".\n *\n * @api public\n */\n\nfunction log() {\n  // this hackery is required for IE8/9, where\n  // the `console.log` function doesn't have 'apply'\n  return 'object' === typeof console\n    && console.log\n    && Function.prototype.apply.call(console.log, console, arguments);\n}\n\n/**\n * Save `namespaces`.\n *\n * @param {String} namespaces\n * @api private\n */\n\nfunction save(namespaces) {\n  try {\n    if (null == namespaces) {\n      exports.storage.removeItem('debug');\n    } else {\n      exports.storage.debug = namespaces;\n    }\n  } catch(e) {}\n}\n\n/**\n * Load `namespaces`.\n *\n * @return {String} returns the previously persisted debug modes\n * @api private\n */\n\nfunction load() {\n  var r;\n  try {\n    r = exports.storage.debug;\n  } catch(e) {}\n  return r;\n}\n\n/**\n * Enable namespaces listed in `localStorage.debug` initially.\n */\n\nexports.enable(load());\n\n/**\n * Localstorage attempts to return the localstorage.\n *\n * This is necessary because safari throws\n * when a user disables cookies/localstorage\n * and you attempt to access it.\n *\n * @return {LocalStorage}\n * @api private\n */\n\nfunction localstorage(){\n  try {\n    return window.localStorage;\n  } catch (e) {}\n}\n","\n/**\n * This is the common logic for both the Node.js and web browser\n * implementations of `debug()`.\n *\n * Expose `debug()` as the module.\n */\n\nexports = module.exports = debug;\nexports.coerce = coerce;\nexports.disable = disable;\nexports.enable = enable;\nexports.enabled = enabled;\nexports.humanize = require('ms');\n\n/**\n * The currently active debug mode names, and names to skip.\n */\n\nexports.names = [];\nexports.skips = [];\n\n/**\n * Map of special \"%n\" handling functions, for the debug \"format\" argument.\n *\n * Valid key names are a single, lowercased letter, i.e. \"n\".\n */\n\nexports.formatters = {};\n\n/**\n * Previously assigned color.\n */\n\nvar prevColor = 0;\n\n/**\n * Previous log timestamp.\n */\n\nvar prevTime;\n\n/**\n * Select a color.\n *\n * @return {Number}\n * @api private\n */\n\nfunction selectColor() {\n  return exports.colors[prevColor++ % exports.colors.length];\n}\n\n/**\n * Create a debugger with the given `namespace`.\n *\n * @param {String} namespace\n * @return {Function}\n * @api public\n */\n\nfunction debug(namespace) {\n\n  // define the `disabled` version\n  function disabled() {\n  }\n  disabled.enabled = false;\n\n  // define the `enabled` version\n  function enabled() {\n\n    var self = enabled;\n\n    // set `diff` timestamp\n    var curr = +new Date();\n    var ms = curr - (prevTime || curr);\n    self.diff = ms;\n    self.prev = prevTime;\n    self.curr = curr;\n    prevTime = curr;\n\n    // add the `color` if not set\n    if (null == self.useColors) self.useColors = exports.useColors();\n    if (null == self.color && self.useColors) self.color = selectColor();\n\n    var args = Array.prototype.slice.call(arguments);\n\n    args[0] = exports.coerce(args[0]);\n\n    if ('string' !== typeof args[0]) {\n      // anything else let's inspect with %o\n      args = ['%o'].concat(args);\n    }\n\n    // apply any `formatters` transformations\n    var index = 0;\n    args[0] = args[0].replace(/%([a-z%])/g, function(match, format) {\n      // if we encounter an escaped % then don't increase the array index\n      if (match === '%%') return match;\n      index++;\n      var formatter = exports.formatters[format];\n      if ('function' === typeof formatter) {\n        var val = args[index];\n        match = formatter.call(self, val);\n\n        // now we need to remove `args[index]` since it's inlined in the `format`\n        args.splice(index, 1);\n        index--;\n      }\n      return match;\n    });\n\n    if ('function' === typeof exports.formatArgs) {\n      args = exports.formatArgs.apply(self, args);\n    }\n    var logFn = enabled.log || exports.log || console.log.bind(console);\n    logFn.apply(self, args);\n  }\n  enabled.enabled = true;\n\n  var fn = exports.enabled(namespace) ? enabled : disabled;\n\n  fn.namespace = namespace;\n\n  return fn;\n}\n\n/**\n * Enables a debug mode by namespaces. This can include modes\n * separated by a colon and wildcards.\n *\n * @param {String} namespaces\n * @api public\n */\n\nfunction enable(namespaces) {\n  exports.save(namespaces);\n\n  var split = (namespaces || '').split(/[\\s,]+/);\n  var len = split.length;\n\n  for (var i = 0; i < len; i++) {\n    if (!split[i]) continue; // ignore empty strings\n    namespaces = split[i].replace(/\\*/g, '.*?');\n    if (namespaces[0] === '-') {\n      exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));\n    } else {\n      exports.names.push(new RegExp('^' + namespaces + '$'));\n    }\n  }\n}\n\n/**\n * Disable debug output.\n *\n * @api public\n */\n\nfunction disable() {\n  exports.enable('');\n}\n\n/**\n * Returns true if the given mode name is enabled, false otherwise.\n *\n * @param {String} name\n * @return {Boolean}\n * @api public\n */\n\nfunction enabled(name) {\n  var i, len;\n  for (i = 0, len = exports.skips.length; i < len; i++) {\n    if (exports.skips[i].test(name)) {\n      return false;\n    }\n  }\n  for (i = 0, len = exports.names.length; i < len; i++) {\n    if (exports.names[i].test(name)) {\n      return true;\n    }\n  }\n  return false;\n}\n\n/**\n * Coerce `val`.\n *\n * @param {Mixed} val\n * @return {Mixed}\n * @api private\n */\n\nfunction coerce(val) {\n  if (val instanceof Error) return val.stack || val.message;\n  return val;\n}\n","\nmodule.exports =  require('./lib/');\n","\nmodule.exports = require('./socket');\n\n/**\n * Exports parser\n *\n * @api public\n *\n */\nmodule.exports.parser = require('engine.io-parser');\n","/**\n * Module dependencies.\n */\n\nvar transports = require('./transports');\nvar Emitter = require('component-emitter');\nvar debug = require('debug')('engine.io-client:socket');\nvar index = require('indexof');\nvar parser = require('engine.io-parser');\nvar parseuri = require('parseuri');\nvar parsejson = require('parsejson');\nvar parseqs = require('parseqs');\n\n/**\n * Module exports.\n */\n\nmodule.exports = Socket;\n\n/**\n * Noop function.\n *\n * @api private\n */\n\nfunction noop(){}\n\n/**\n * Socket constructor.\n *\n * @param {String|Object} uri or options\n * @param {Object} options\n * @api public\n */\n\nfunction Socket(uri, opts){\n  if (!(this instanceof Socket)) return new Socket(uri, opts);\n\n  opts = opts || {};\n\n  if (uri && 'object' == typeof uri) {\n    opts = uri;\n    uri = null;\n  }\n\n  if (uri) {\n    uri = parseuri(uri);\n    opts.hostname = uri.host;\n    opts.secure = uri.protocol == 'https' || uri.protocol == 'wss';\n    opts.port = uri.port;\n    if (uri.query) opts.query = uri.query;\n  } else if (opts.host) {\n    opts.hostname = parseuri(opts.host).host;\n  }\n\n  this.secure = null != opts.secure ? opts.secure :\n    (global.location && 'https:' == location.protocol);\n\n  if (opts.hostname && !opts.port) {\n    // if no port is specified manually, use the protocol default\n    opts.port = this.secure ? '443' : '80';\n  }\n\n  this.agent = opts.agent || false;\n  this.hostname = opts.hostname ||\n    (global.location ? location.hostname : 'localhost');\n  this.port = opts.port || (global.location && location.port ?\n       location.port :\n       (this.secure ? 443 : 80));\n  this.query = opts.query || {};\n  if ('string' == typeof this.query) this.query = parseqs.decode(this.query);\n  this.upgrade = false !== opts.upgrade;\n  this.path = (opts.path || '/engine.io').replace(/\\/$/, '') + '/';\n  this.forceJSONP = !!opts.forceJSONP;\n  this.jsonp = false !== opts.jsonp;\n  this.forceBase64 = !!opts.forceBase64;\n  this.enablesXDR = !!opts.enablesXDR;\n  this.timestampParam = opts.timestampParam || 't';\n  this.timestampRequests = opts.timestampRequests;\n  this.transports = opts.transports || ['polling', 'websocket'];\n  this.readyState = '';\n  this.writeBuffer = [];\n  this.policyPort = opts.policyPort || 843;\n  this.rememberUpgrade = opts.rememberUpgrade || false;\n  this.binaryType = null;\n  this.onlyBinaryUpgrades = opts.onlyBinaryUpgrades;\n  this.perMessageDeflate = false !== opts.perMessageDeflate ? (opts.perMessageDeflate || {}) : false;\n\n  if (true === this.perMessageDeflate) this.perMessageDeflate = {};\n  if (this.perMessageDeflate && null == this.perMessageDeflate.threshold) {\n    this.perMessageDeflate.threshold = 1024;\n  }\n\n  // SSL options for Node.js client\n  this.pfx = opts.pfx || null;\n  this.key = opts.key || null;\n  this.passphrase = opts.passphrase || null;\n  this.cert = opts.cert || null;\n  this.ca = opts.ca || null;\n  this.ciphers = opts.ciphers || null;\n  this.rejectUnauthorized = opts.rejectUnauthorized === undefined ? null : opts.rejectUnauthorized;\n\n  // other options for Node.js client\n  var freeGlobal = typeof global == 'object' && global;\n  if (freeGlobal.global === freeGlobal) {\n    if (opts.extraHeaders && Object.keys(opts.extraHeaders).length > 0) {\n      this.extraHeaders = opts.extraHeaders;\n    }\n  }\n\n  this.open();\n}\n\nSocket.priorWebsocketSuccess = false;\n\n/**\n * Mix in `Emitter`.\n */\n\nEmitter(Socket.prototype);\n\n/**\n * Protocol version.\n *\n * @api public\n */\n\nSocket.protocol = parser.protocol; // this is an int\n\n/**\n * Expose deps for legacy compatibility\n * and standalone browser access.\n */\n\nSocket.Socket = Socket;\nSocket.Transport = require('./transport');\nSocket.transports = require('./transports');\nSocket.parser = require('engine.io-parser');\n\n/**\n * Creates transport of the given type.\n *\n * @param {String} transport name\n * @return {Transport}\n * @api private\n */\n\nSocket.prototype.createTransport = function (name) {\n  debug('creating transport \"%s\"', name);\n  var query = clone(this.query);\n\n  // append engine.io protocol identifier\n  query.EIO = parser.protocol;\n\n  // transport name\n  query.transport = name;\n\n  // session id if we already have one\n  if (this.id) query.sid = this.id;\n\n  var transport = new transports[name]({\n    agent: this.agent,\n    hostname: this.hostname,\n    port: this.port,\n    secure: this.secure,\n    path: this.path,\n    query: query,\n    forceJSONP: this.forceJSONP,\n    jsonp: this.jsonp,\n    forceBase64: this.forceBase64,\n    enablesXDR: this.enablesXDR,\n    timestampRequests: this.timestampRequests,\n    timestampParam: this.timestampParam,\n    policyPort: this.policyPort,\n    socket: this,\n    pfx: this.pfx,\n    key: this.key,\n    passphrase: this.passphrase,\n    cert: this.cert,\n    ca: this.ca,\n    ciphers: this.ciphers,\n    rejectUnauthorized: this.rejectUnauthorized,\n    perMessageDeflate: this.perMessageDeflate,\n    extraHeaders: this.extraHeaders\n  });\n\n  return transport;\n};\n\nfunction clone (obj) {\n  var o = {};\n  for (var i in obj) {\n    if (obj.hasOwnProperty(i)) {\n      o[i] = obj[i];\n    }\n  }\n  return o;\n}\n\n/**\n * Initializes transport to use and starts probe.\n *\n * @api private\n */\nSocket.prototype.open = function () {\n  var transport;\n  if (this.rememberUpgrade && Socket.priorWebsocketSuccess && this.transports.indexOf('websocket') != -1) {\n    transport = 'websocket';\n  } else if (0 === this.transports.length) {\n    // Emit error on next tick so it can be listened to\n    var self = this;\n    setTimeout(function() {\n      self.emit('error', 'No transports available');\n    }, 0);\n    return;\n  } else {\n    transport = this.transports[0];\n  }\n  this.readyState = 'opening';\n\n  // Retry with the next transport if the transport is disabled (jsonp: false)\n  try {\n    transport = this.createTransport(transport);\n  } catch (e) {\n    this.transports.shift();\n    this.open();\n    return;\n  }\n\n  transport.open();\n  this.setTransport(transport);\n};\n\n/**\n * Sets the current transport. Disables the existing one (if any).\n *\n * @api private\n */\n\nSocket.prototype.setTransport = function(transport){\n  debug('setting transport %s', transport.name);\n  var self = this;\n\n  if (this.transport) {\n    debug('clearing existing transport %s', this.transport.name);\n    this.transport.removeAllListeners();\n  }\n\n  // set up transport\n  this.transport = transport;\n\n  // set up transport listeners\n  transport\n  .on('drain', function(){\n    self.onDrain();\n  })\n  .on('packet', function(packet){\n    self.onPacket(packet);\n  })\n  .on('error', function(e){\n    self.onError(e);\n  })\n  .on('close', function(){\n    self.onClose('transport close');\n  });\n};\n\n/**\n * Probes a transport.\n *\n * @param {String} transport name\n * @api private\n */\n\nSocket.prototype.probe = function (name) {\n  debug('probing transport \"%s\"', name);\n  var transport = this.createTransport(name, { probe: 1 })\n    , failed = false\n    , self = this;\n\n  Socket.priorWebsocketSuccess = false;\n\n  function onTransportOpen(){\n    if (self.onlyBinaryUpgrades) {\n      var upgradeLosesBinary = !this.supportsBinary && self.transport.supportsBinary;\n      failed = failed || upgradeLosesBinary;\n    }\n    if (failed) return;\n\n    debug('probe transport \"%s\" opened', name);\n    transport.send([{ type: 'ping', data: 'probe' }]);\n    transport.once('packet', function (msg) {\n      if (failed) return;\n      if ('pong' == msg.type && 'probe' == msg.data) {\n        debug('probe transport \"%s\" pong', name);\n        self.upgrading = true;\n        self.emit('upgrading', transport);\n        if (!transport) return;\n        Socket.priorWebsocketSuccess = 'websocket' == transport.name;\n\n        debug('pausing current transport \"%s\"', self.transport.name);\n        self.transport.pause(function () {\n          if (failed) return;\n          if ('closed' == self.readyState) return;\n          debug('changing transport and sending upgrade packet');\n\n          cleanup();\n\n          self.setTransport(transport);\n          transport.send([{ type: 'upgrade' }]);\n          self.emit('upgrade', transport);\n          transport = null;\n          self.upgrading = false;\n          self.flush();\n        });\n      } else {\n        debug('probe transport \"%s\" failed', name);\n        var err = new Error('probe error');\n        err.transport = transport.name;\n        self.emit('upgradeError', err);\n      }\n    });\n  }\n\n  function freezeTransport() {\n    if (failed) return;\n\n    // Any callback called by transport should be ignored since now\n    failed = true;\n\n    cleanup();\n\n    transport.close();\n    transport = null;\n  }\n\n  //Handle any error that happens while probing\n  function onerror(err) {\n    var error = new Error('probe error: ' + err);\n    error.transport = transport.name;\n\n    freezeTransport();\n\n    debug('probe transport \"%s\" failed because of error: %s', name, err);\n\n    self.emit('upgradeError', error);\n  }\n\n  function onTransportClose(){\n    onerror(\"transport closed\");\n  }\n\n  //When the socket is closed while we're probing\n  function onclose(){\n    onerror(\"socket closed\");\n  }\n\n  //When the socket is upgraded while we're probing\n  function onupgrade(to){\n    if (transport && to.name != transport.name) {\n      debug('\"%s\" works - aborting \"%s\"', to.name, transport.name);\n      freezeTransport();\n    }\n  }\n\n  //Remove all listeners on the transport and on self\n  function cleanup(){\n    transport.removeListener('open', onTransportOpen);\n    transport.removeListener('error', onerror);\n    transport.removeListener('close', onTransportClose);\n    self.removeListener('close', onclose);\n    self.removeListener('upgrading', onupgrade);\n  }\n\n  transport.once('open', onTransportOpen);\n  transport.once('error', onerror);\n  transport.once('close', onTransportClose);\n\n  this.once('close', onclose);\n  this.once('upgrading', onupgrade);\n\n  transport.open();\n\n};\n\n/**\n * Called when connection is deemed open.\n *\n * @api public\n */\n\nSocket.prototype.onOpen = function () {\n  debug('socket open');\n  this.readyState = 'open';\n  Socket.priorWebsocketSuccess = 'websocket' == this.transport.name;\n  this.emit('open');\n  this.flush();\n\n  // we check for `readyState` in case an `open`\n  // listener already closed the socket\n  if ('open' == this.readyState && this.upgrade && this.transport.pause) {\n    debug('starting upgrade probes');\n    for (var i = 0, l = this.upgrades.length; i < l; i++) {\n      this.probe(this.upgrades[i]);\n    }\n  }\n};\n\n/**\n * Handles a packet.\n *\n * @api private\n */\n\nSocket.prototype.onPacket = function (packet) {\n  if ('opening' == this.readyState || 'open' == this.readyState) {\n    debug('socket receive: type \"%s\", data \"%s\"', packet.type, packet.data);\n\n    this.emit('packet', packet);\n\n    // Socket is live - any packet counts\n    this.emit('heartbeat');\n\n    switch (packet.type) {\n      case 'open':\n        this.onHandshake(parsejson(packet.data));\n        break;\n\n      case 'pong':\n        this.setPing();\n        this.emit('pong');\n        break;\n\n      case 'error':\n        var err = new Error('server error');\n        err.code = packet.data;\n        this.onError(err);\n        break;\n\n      case 'message':\n        this.emit('data', packet.data);\n        this.emit('message', packet.data);\n        break;\n    }\n  } else {\n    debug('packet received with socket readyState \"%s\"', this.readyState);\n  }\n};\n\n/**\n * Called upon handshake completion.\n *\n * @param {Object} handshake obj\n * @api private\n */\n\nSocket.prototype.onHandshake = function (data) {\n  this.emit('handshake', data);\n  this.id = data.sid;\n  this.transport.query.sid = data.sid;\n  this.upgrades = this.filterUpgrades(data.upgrades);\n  this.pingInterval = data.pingInterval;\n  this.pingTimeout = data.pingTimeout;\n  this.onOpen();\n  // In case open handler closes socket\n  if  ('closed' == this.readyState) return;\n  this.setPing();\n\n  // Prolong liveness of socket on heartbeat\n  this.removeListener('heartbeat', this.onHeartbeat);\n  this.on('heartbeat', this.onHeartbeat);\n};\n\n/**\n * Resets ping timeout.\n *\n * @api private\n */\n\nSocket.prototype.onHeartbeat = function (timeout) {\n  clearTimeout(this.pingTimeoutTimer);\n  var self = this;\n  self.pingTimeoutTimer = setTimeout(function () {\n    if ('closed' == self.readyState) return;\n    self.onClose('ping timeout');\n  }, timeout || (self.pingInterval + self.pingTimeout));\n};\n\n/**\n * Pings server every `this.pingInterval` and expects response\n * within `this.pingTimeout` or closes connection.\n *\n * @api private\n */\n\nSocket.prototype.setPing = function () {\n  var self = this;\n  clearTimeout(self.pingIntervalTimer);\n  self.pingIntervalTimer = setTimeout(function () {\n    debug('writing ping packet - expecting pong within %sms', self.pingTimeout);\n    self.ping();\n    self.onHeartbeat(self.pingTimeout);\n  }, self.pingInterval);\n};\n\n/**\n* Sends a ping packet.\n*\n* @api private\n*/\n\nSocket.prototype.ping = function () {\n  var self = this;\n  this.sendPacket('ping', function(){\n    self.emit('ping');\n  });\n};\n\n/**\n * Called on `drain` event\n *\n * @api private\n */\n\nSocket.prototype.onDrain = function() {\n  this.writeBuffer.splice(0, this.prevBufferLen);\n\n  // setting prevBufferLen = 0 is very important\n  // for example, when upgrading, upgrade packet is sent over,\n  // and a nonzero prevBufferLen could cause problems on `drain`\n  this.prevBufferLen = 0;\n\n  if (0 === this.writeBuffer.length) {\n    this.emit('drain');\n  } else {\n    this.flush();\n  }\n};\n\n/**\n * Flush write buffers.\n *\n * @api private\n */\n\nSocket.prototype.flush = function () {\n  if ('closed' != this.readyState && this.transport.writable &&\n    !this.upgrading && this.writeBuffer.length) {\n    debug('flushing %d packets in socket', this.writeBuffer.length);\n    this.transport.send(this.writeBuffer);\n    // keep track of current length of writeBuffer\n    // splice writeBuffer and callbackBuffer on `drain`\n    this.prevBufferLen = this.writeBuffer.length;\n    this.emit('flush');\n  }\n};\n\n/**\n * Sends a message.\n *\n * @param {String} message.\n * @param {Function} callback function.\n * @param {Object} options.\n * @return {Socket} for chaining.\n * @api public\n */\n\nSocket.prototype.write =\nSocket.prototype.send = function (msg, options, fn) {\n  this.sendPacket('message', msg, options, fn);\n  return this;\n};\n\n/**\n * Sends a packet.\n *\n * @param {String} packet type.\n * @param {String} data.\n * @param {Object} options.\n * @param {Function} callback function.\n * @api private\n */\n\nSocket.prototype.sendPacket = function (type, data, options, fn) {\n  if('function' == typeof data) {\n    fn = data;\n    data = undefined;\n  }\n\n  if ('function' == typeof options) {\n    fn = options;\n    options = null;\n  }\n\n  if ('closing' == this.readyState || 'closed' == this.readyState) {\n    return;\n  }\n\n  options = options || {};\n  options.compress = false !== options.compress;\n\n  var packet = {\n    type: type,\n    data: data,\n    options: options\n  };\n  this.emit('packetCreate', packet);\n  this.writeBuffer.push(packet);\n  if (fn) this.once('flush', fn);\n  this.flush();\n};\n\n/**\n * Closes the connection.\n *\n * @api private\n */\n\nSocket.prototype.close = function () {\n  if ('opening' == this.readyState || 'open' == this.readyState) {\n    this.readyState = 'closing';\n\n    var self = this;\n\n    if (this.writeBuffer.length) {\n      this.once('drain', function() {\n        if (this.upgrading) {\n          waitForUpgrade();\n        } else {\n          close();\n        }\n      });\n    } else if (this.upgrading) {\n      waitForUpgrade();\n    } else {\n      close();\n    }\n  }\n\n  function close() {\n    self.onClose('forced close');\n    debug('socket closing - telling transport to close');\n    self.transport.close();\n  }\n\n  function cleanupAndClose() {\n    self.removeListener('upgrade', cleanupAndClose);\n    self.removeListener('upgradeError', cleanupAndClose);\n    close();\n  }\n\n  function waitForUpgrade() {\n    // wait for upgrade to finish since we can't send packets while pausing a transport\n    self.once('upgrade', cleanupAndClose);\n    self.once('upgradeError', cleanupAndClose);\n  }\n\n  return this;\n};\n\n/**\n * Called upon transport error\n *\n * @api private\n */\n\nSocket.prototype.onError = function (err) {\n  debug('socket error %j', err);\n  Socket.priorWebsocketSuccess = false;\n  this.emit('error', err);\n  this.onClose('transport error', err);\n};\n\n/**\n * Called upon transport close.\n *\n * @api private\n */\n\nSocket.prototype.onClose = function (reason, desc) {\n  if ('opening' == this.readyState || 'open' == this.readyState || 'closing' == this.readyState) {\n    debug('socket close with reason: \"%s\"', reason);\n    var self = this;\n\n    // clear timers\n    clearTimeout(this.pingIntervalTimer);\n    clearTimeout(this.pingTimeoutTimer);\n\n    // stop event from firing again for transport\n    this.transport.removeAllListeners('close');\n\n    // ensure transport won't stay open\n    this.transport.close();\n\n    // ignore further transport communication\n    this.transport.removeAllListeners();\n\n    // set ready state\n    this.readyState = 'closed';\n\n    // clear session id\n    this.id = null;\n\n    // emit close event\n    this.emit('close', reason, desc);\n\n    // clean buffers after, so users can still\n    // grab the buffers on `close` event\n    self.writeBuffer = [];\n    self.prevBufferLen = 0;\n  }\n};\n\n/**\n * Filters upgrades, returning only those matching client transports.\n *\n * @param {Array} server upgrades\n * @api private\n *\n */\n\nSocket.prototype.filterUpgrades = function (upgrades) {\n  var filteredUpgrades = [];\n  for (var i = 0, j = upgrades.length; i<j; i++) {\n    if (~index(this.transports, upgrades[i])) filteredUpgrades.push(upgrades[i]);\n  }\n  return filteredUpgrades;\n};\n","/**\n * Module dependencies.\n */\n\nvar parser = require('engine.io-parser');\nvar Emitter = require('component-emitter');\n\n/**\n * Module exports.\n */\n\nmodule.exports = Transport;\n\n/**\n * Transport abstract constructor.\n *\n * @param {Object} options.\n * @api private\n */\n\nfunction Transport (opts) {\n  this.path = opts.path;\n  this.hostname = opts.hostname;\n  this.port = opts.port;\n  this.secure = opts.secure;\n  this.query = opts.query;\n  this.timestampParam = opts.timestampParam;\n  this.timestampRequests = opts.timestampRequests;\n  this.readyState = '';\n  this.agent = opts.agent || false;\n  this.socket = opts.socket;\n  this.enablesXDR = opts.enablesXDR;\n\n  // SSL options for Node.js client\n  this.pfx = opts.pfx;\n  this.key = opts.key;\n  this.passphrase = opts.passphrase;\n  this.cert = opts.cert;\n  this.ca = opts.ca;\n  this.ciphers = opts.ciphers;\n  this.rejectUnauthorized = opts.rejectUnauthorized;\n\n  // other options for Node.js client\n  this.extraHeaders = opts.extraHeaders;\n}\n\n/**\n * Mix in `Emitter`.\n */\n\nEmitter(Transport.prototype);\n\n/**\n * Emits an error.\n *\n * @param {String} str\n * @return {Transport} for chaining\n * @api public\n */\n\nTransport.prototype.onError = function (msg, desc) {\n  var err = new Error(msg);\n  err.type = 'TransportError';\n  err.description = desc;\n  this.emit('error', err);\n  return this;\n};\n\n/**\n * Opens the transport.\n *\n * @api public\n */\n\nTransport.prototype.open = function () {\n  if ('closed' == this.readyState || '' == this.readyState) {\n    this.readyState = 'opening';\n    this.doOpen();\n  }\n\n  return this;\n};\n\n/**\n * Closes the transport.\n *\n * @api private\n */\n\nTransport.prototype.close = function () {\n  if ('opening' == this.readyState || 'open' == this.readyState) {\n    this.doClose();\n    this.onClose();\n  }\n\n  return this;\n};\n\n/**\n * Sends multiple packets.\n *\n * @param {Array} packets\n * @api private\n */\n\nTransport.prototype.send = function(packets){\n  if ('open' == this.readyState) {\n    this.write(packets);\n  } else {\n    throw new Error('Transport not open');\n  }\n};\n\n/**\n * Called upon open\n *\n * @api private\n */\n\nTransport.prototype.onOpen = function () {\n  this.readyState = 'open';\n  this.writable = true;\n  this.emit('open');\n};\n\n/**\n * Called with data.\n *\n * @param {String} data\n * @api private\n */\n\nTransport.prototype.onData = function(data){\n  var packet = parser.decodePacket(data, this.socket.binaryType);\n  this.onPacket(packet);\n};\n\n/**\n * Called with a decoded packet.\n */\n\nTransport.prototype.onPacket = function (packet) {\n  this.emit('packet', packet);\n};\n\n/**\n * Called upon close.\n *\n * @api private\n */\n\nTransport.prototype.onClose = function () {\n  this.readyState = 'closed';\n  this.emit('close');\n};\n","/**\n * Module dependencies\n */\n\nvar XMLHttpRequest = require('xmlhttprequest-ssl');\nvar XHR = require('./polling-xhr');\nvar JSONP = require('./polling-jsonp');\nvar websocket = require('./websocket');\n\n/**\n * Export transports.\n */\n\nexports.polling = polling;\nexports.websocket = websocket;\n\n/**\n * Polling transport polymorphic constructor.\n * Decides on xhr vs jsonp based on feature detection.\n *\n * @api private\n */\n\nfunction polling(opts){\n  var xhr;\n  var xd = false;\n  var xs = false;\n  var jsonp = false !== opts.jsonp;\n\n  if (global.location) {\n    var isSSL = 'https:' == location.protocol;\n    var port = location.port;\n\n    // some user agents have empty `location.port`\n    if (!port) {\n      port = isSSL ? 443 : 80;\n    }\n\n    xd = opts.hostname != location.hostname || port != opts.port;\n    xs = opts.secure != isSSL;\n  }\n\n  opts.xdomain = xd;\n  opts.xscheme = xs;\n  xhr = new XMLHttpRequest(opts);\n\n  if ('open' in xhr && !opts.forceJSONP) {\n    return new XHR(opts);\n  } else {\n    if (!jsonp) throw new Error('JSONP disabled');\n    return new JSONP(opts);\n  }\n}\n","\n/**\n * Module requirements.\n */\n\nvar Polling = require('./polling');\nvar inherit = require('component-inherit');\n\n/**\n * Module exports.\n */\n\nmodule.exports = JSONPPolling;\n\n/**\n * Cached regular expressions.\n */\n\nvar rNewline = /\\n/g;\nvar rEscapedNewline = /\\\\n/g;\n\n/**\n * Global JSONP callbacks.\n */\n\nvar callbacks;\n\n/**\n * Callbacks count.\n */\n\nvar index = 0;\n\n/**\n * Noop.\n */\n\nfunction empty () { }\n\n/**\n * JSONP Polling constructor.\n *\n * @param {Object} opts.\n * @api public\n */\n\nfunction JSONPPolling (opts) {\n  Polling.call(this, opts);\n\n  this.query = this.query || {};\n\n  // define global callbacks array if not present\n  // we do this here (lazily) to avoid unneeded global pollution\n  if (!callbacks) {\n    // we need to consider multiple engines in the same page\n    if (!global.___eio) global.___eio = [];\n    callbacks = global.___eio;\n  }\n\n  // callback identifier\n  this.index = callbacks.length;\n\n  // add callback to jsonp global\n  var self = this;\n  callbacks.push(function (msg) {\n    self.onData(msg);\n  });\n\n  // append to query string\n  this.query.j = this.index;\n\n  // prevent spurious errors from being emitted when the window is unloaded\n  if (global.document && global.addEventListener) {\n    global.addEventListener('beforeunload', function () {\n      if (self.script) self.script.onerror = empty;\n    }, false);\n  }\n}\n\n/**\n * Inherits from Polling.\n */\n\ninherit(JSONPPolling, Polling);\n\n/*\n * JSONP only supports binary as base64 encoded strings\n */\n\nJSONPPolling.prototype.supportsBinary = false;\n\n/**\n * Closes the socket.\n *\n * @api private\n */\n\nJSONPPolling.prototype.doClose = function () {\n  if (this.script) {\n    this.script.parentNode.removeChild(this.script);\n    this.script = null;\n  }\n\n  if (this.form) {\n    this.form.parentNode.removeChild(this.form);\n    this.form = null;\n    this.iframe = null;\n  }\n\n  Polling.prototype.doClose.call(this);\n};\n\n/**\n * Starts a poll cycle.\n *\n * @api private\n */\n\nJSONPPolling.prototype.doPoll = function () {\n  var self = this;\n  var script = document.createElement('script');\n\n  if (this.script) {\n    this.script.parentNode.removeChild(this.script);\n    this.script = null;\n  }\n\n  script.async = true;\n  script.src = this.uri();\n  script.onerror = function(e){\n    self.onError('jsonp poll error',e);\n  };\n\n  var insertAt = document.getElementsByTagName('script')[0];\n  if (insertAt) {\n    insertAt.parentNode.insertBefore(script, insertAt);\n  }\n  else {\n    (document.head || document.body).appendChild(script);\n  }\n  this.script = script;\n\n  var isUAgecko = 'undefined' != typeof navigator && /gecko/i.test(navigator.userAgent);\n  \n  if (isUAgecko) {\n    setTimeout(function () {\n      var iframe = document.createElement('iframe');\n      document.body.appendChild(iframe);\n      document.body.removeChild(iframe);\n    }, 100);\n  }\n};\n\n/**\n * Writes with a hidden iframe.\n *\n * @param {String} data to send\n * @param {Function} called upon flush.\n * @api private\n */\n\nJSONPPolling.prototype.doWrite = function (data, fn) {\n  var self = this;\n\n  if (!this.form) {\n    var form = document.createElement('form');\n    var area = document.createElement('textarea');\n    var id = this.iframeId = 'eio_iframe_' + this.index;\n    var iframe;\n\n    form.className = 'socketio';\n    form.style.position = 'absolute';\n    form.style.top = '-1000px';\n    form.style.left = '-1000px';\n    form.target = id;\n    form.method = 'POST';\n    form.setAttribute('accept-charset', 'utf-8');\n    area.name = 'd';\n    form.appendChild(area);\n    document.body.appendChild(form);\n\n    this.form = form;\n    this.area = area;\n  }\n\n  this.form.action = this.uri();\n\n  function complete () {\n    initIframe();\n    fn();\n  }\n\n  function initIframe () {\n    if (self.iframe) {\n      try {\n        self.form.removeChild(self.iframe);\n      } catch (e) {\n        self.onError('jsonp polling iframe removal error', e);\n      }\n    }\n\n    try {\n      // ie6 dynamic iframes with target=\"\" support (thanks Chris Lambacher)\n      var html = '<iframe src=\"javascript:0\" name=\"'+ self.iframeId +'\">';\n      iframe = document.createElement(html);\n    } catch (e) {\n      iframe = document.createElement('iframe');\n      iframe.name = self.iframeId;\n      iframe.src = 'javascript:0';\n    }\n\n    iframe.id = self.iframeId;\n\n    self.form.appendChild(iframe);\n    self.iframe = iframe;\n  }\n\n  initIframe();\n\n  // escape \\n to prevent it from being converted into \\r\\n by some UAs\n  // double escaping is required for escaped new lines because unescaping of new lines can be done safely on server-side\n  data = data.replace(rEscapedNewline, '\\\\\\n');\n  this.area.value = data.replace(rNewline, '\\\\n');\n\n  try {\n    this.form.submit();\n  } catch(e) {}\n\n  if (this.iframe.attachEvent) {\n    this.iframe.onreadystatechange = function(){\n      if (self.iframe.readyState == 'complete') {\n        complete();\n      }\n    };\n  } else {\n    this.iframe.onload = complete;\n  }\n};\n","/**\n * Module requirements.\n */\n\nvar XMLHttpRequest = require('xmlhttprequest-ssl');\nvar Polling = require('./polling');\nvar Emitter = require('component-emitter');\nvar inherit = require('component-inherit');\nvar debug = require('debug')('engine.io-client:polling-xhr');\n\n/**\n * Module exports.\n */\n\nmodule.exports = XHR;\nmodule.exports.Request = Request;\n\n/**\n * Empty function\n */\n\nfunction empty(){}\n\n/**\n * XHR Polling constructor.\n *\n * @param {Object} opts\n * @api public\n */\n\nfunction XHR(opts){\n  Polling.call(this, opts);\n\n  if (global.location) {\n    var isSSL = 'https:' == location.protocol;\n    var port = location.port;\n\n    // some user agents have empty `location.port`\n    if (!port) {\n      port = isSSL ? 443 : 80;\n    }\n\n    this.xd = opts.hostname != global.location.hostname ||\n      port != opts.port;\n    this.xs = opts.secure != isSSL;\n  } else {\n    this.extraHeaders = opts.extraHeaders;\n  }\n}\n\n/**\n * Inherits from Polling.\n */\n\ninherit(XHR, Polling);\n\n/**\n * XHR supports binary\n */\n\nXHR.prototype.supportsBinary = true;\n\n/**\n * Creates a request.\n *\n * @param {String} method\n * @api private\n */\n\nXHR.prototype.request = function(opts){\n  opts = opts || {};\n  opts.uri = this.uri();\n  opts.xd = this.xd;\n  opts.xs = this.xs;\n  opts.agent = this.agent || false;\n  opts.supportsBinary = this.supportsBinary;\n  opts.enablesXDR = this.enablesXDR;\n\n  // SSL options for Node.js client\n  opts.pfx = this.pfx;\n  opts.key = this.key;\n  opts.passphrase = this.passphrase;\n  opts.cert = this.cert;\n  opts.ca = this.ca;\n  opts.ciphers = this.ciphers;\n  opts.rejectUnauthorized = this.rejectUnauthorized;\n\n  // other options for Node.js client\n  opts.extraHeaders = this.extraHeaders;\n\n  return new Request(opts);\n};\n\n/**\n * Sends data.\n *\n * @param {String} data to send.\n * @param {Function} called upon flush.\n * @api private\n */\n\nXHR.prototype.doWrite = function(data, fn){\n  var isBinary = typeof data !== 'string' && data !== undefined;\n  var req = this.request({ method: 'POST', data: data, isBinary: isBinary });\n  var self = this;\n  req.on('success', fn);\n  req.on('error', function(err){\n    self.onError('xhr post error', err);\n  });\n  this.sendXhr = req;\n};\n\n/**\n * Starts a poll cycle.\n *\n * @api private\n */\n\nXHR.prototype.doPoll = function(){\n  debug('xhr poll');\n  var req = this.request();\n  var self = this;\n  req.on('data', function(data){\n    self.onData(data);\n  });\n  req.on('error', function(err){\n    self.onError('xhr poll error', err);\n  });\n  this.pollXhr = req;\n};\n\n/**\n * Request constructor\n *\n * @param {Object} options\n * @api public\n */\n\nfunction Request(opts){\n  this.method = opts.method || 'GET';\n  this.uri = opts.uri;\n  this.xd = !!opts.xd;\n  this.xs = !!opts.xs;\n  this.async = false !== opts.async;\n  this.data = undefined != opts.data ? opts.data : null;\n  this.agent = opts.agent;\n  this.isBinary = opts.isBinary;\n  this.supportsBinary = opts.supportsBinary;\n  this.enablesXDR = opts.enablesXDR;\n\n  // SSL options for Node.js client\n  this.pfx = opts.pfx;\n  this.key = opts.key;\n  this.passphrase = opts.passphrase;\n  this.cert = opts.cert;\n  this.ca = opts.ca;\n  this.ciphers = opts.ciphers;\n  this.rejectUnauthorized = opts.rejectUnauthorized;\n\n  // other options for Node.js client\n  this.extraHeaders = opts.extraHeaders;\n\n  this.create();\n}\n\n/**\n * Mix in `Emitter`.\n */\n\nEmitter(Request.prototype);\n\n/**\n * Creates the XHR object and sends the request.\n *\n * @api private\n */\n\nRequest.prototype.create = function(){\n  var opts = { agent: this.agent, xdomain: this.xd, xscheme: this.xs, enablesXDR: this.enablesXDR };\n\n  // SSL options for Node.js client\n  opts.pfx = this.pfx;\n  opts.key = this.key;\n  opts.passphrase = this.passphrase;\n  opts.cert = this.cert;\n  opts.ca = this.ca;\n  opts.ciphers = this.ciphers;\n  opts.rejectUnauthorized = this.rejectUnauthorized;\n\n  var xhr = this.xhr = new XMLHttpRequest(opts);\n  var self = this;\n\n  try {\n    debug('xhr open %s: %s', this.method, this.uri);\n    xhr.open(this.method, this.uri, this.async);\n    try {\n      if (this.extraHeaders) {\n        xhr.setDisableHeaderCheck(true);\n        for (var i in this.extraHeaders) {\n          if (this.extraHeaders.hasOwnProperty(i)) {\n            xhr.setRequestHeader(i, this.extraHeaders[i]);\n          }\n        }\n      }\n    } catch (e) {}\n    if (this.supportsBinary) {\n      // This has to be done after open because Firefox is stupid\n      // http://stackoverflow.com/questions/13216903/get-binary-data-with-xmlhttprequest-in-a-firefox-extension\n      xhr.responseType = 'arraybuffer';\n    }\n\n    if ('POST' == this.method) {\n      try {\n        if (this.isBinary) {\n          xhr.setRequestHeader('Content-type', 'application/octet-stream');\n        } else {\n          xhr.setRequestHeader('Content-type', 'text/plain;charset=UTF-8');\n        }\n      } catch (e) {}\n    }\n\n    // ie6 check\n    if ('withCredentials' in xhr) {\n      xhr.withCredentials = true;\n    }\n\n    if (this.hasXDR()) {\n      xhr.onload = function(){\n        self.onLoad();\n      };\n      xhr.onerror = function(){\n        self.onError(xhr.responseText);\n      };\n    } else {\n      xhr.onreadystatechange = function(){\n        if (4 != xhr.readyState) return;\n        if (200 == xhr.status || 1223 == xhr.status) {\n          self.onLoad();\n        } else {\n          // make sure the `error` event handler that's user-set\n          // does not throw in the same tick and gets caught here\n          setTimeout(function(){\n            self.onError(xhr.status);\n          }, 0);\n        }\n      };\n    }\n\n    debug('xhr data %s', this.data);\n    xhr.send(this.data);\n  } catch (e) {\n    // Need to defer since .create() is called directly fhrom the constructor\n    // and thus the 'error' event can only be only bound *after* this exception\n    // occurs.  Therefore, also, we cannot throw here at all.\n    setTimeout(function() {\n      self.onError(e);\n    }, 0);\n    return;\n  }\n\n  if (global.document) {\n    this.index = Request.requestsCount++;\n    Request.requests[this.index] = this;\n  }\n};\n\n/**\n * Called upon successful response.\n *\n * @api private\n */\n\nRequest.prototype.onSuccess = function(){\n  this.emit('success');\n  this.cleanup();\n};\n\n/**\n * Called if we have data.\n *\n * @api private\n */\n\nRequest.prototype.onData = function(data){\n  this.emit('data', data);\n  this.onSuccess();\n};\n\n/**\n * Called upon error.\n *\n * @api private\n */\n\nRequest.prototype.onError = function(err){\n  this.emit('error', err);\n  this.cleanup(true);\n};\n\n/**\n * Cleans up house.\n *\n * @api private\n */\n\nRequest.prototype.cleanup = function(fromError){\n  if ('undefined' == typeof this.xhr || null === this.xhr) {\n    return;\n  }\n  // xmlhttprequest\n  if (this.hasXDR()) {\n    this.xhr.onload = this.xhr.onerror = empty;\n  } else {\n    this.xhr.onreadystatechange = empty;\n  }\n\n  if (fromError) {\n    try {\n      this.xhr.abort();\n    } catch(e) {}\n  }\n\n  if (global.document) {\n    delete Request.requests[this.index];\n  }\n\n  this.xhr = null;\n};\n\n/**\n * Called upon load.\n *\n * @api private\n */\n\nRequest.prototype.onLoad = function(){\n  var data;\n  try {\n    var contentType;\n    try {\n      contentType = this.xhr.getResponseHeader('Content-Type').split(';')[0];\n    } catch (e) {}\n    if (contentType === 'application/octet-stream') {\n      data = this.xhr.response;\n    } else {\n      if (!this.supportsBinary) {\n        data = this.xhr.responseText;\n      } else {\n        try {\n          data = String.fromCharCode.apply(null, new Uint8Array(this.xhr.response));\n        } catch (e) {\n          var ui8Arr = new Uint8Array(this.xhr.response);\n          var dataArray = [];\n          for (var idx = 0, length = ui8Arr.length; idx < length; idx++) {\n            dataArray.push(ui8Arr[idx]);\n          }\n\n          data = String.fromCharCode.apply(null, dataArray);\n        }\n      }\n    }\n  } catch (e) {\n    this.onError(e);\n  }\n  if (null != data) {\n    this.onData(data);\n  }\n};\n\n/**\n * Check if it has XDomainRequest.\n *\n * @api private\n */\n\nRequest.prototype.hasXDR = function(){\n  return 'undefined' !== typeof global.XDomainRequest && !this.xs && this.enablesXDR;\n};\n\n/**\n * Aborts the request.\n *\n * @api public\n */\n\nRequest.prototype.abort = function(){\n  this.cleanup();\n};\n\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\n\nif (global.document) {\n  Request.requestsCount = 0;\n  Request.requests = {};\n  if (global.attachEvent) {\n    global.attachEvent('onunload', unloadHandler);\n  } else if (global.addEventListener) {\n    global.addEventListener('beforeunload', unloadHandler, false);\n  }\n}\n\nfunction unloadHandler() {\n  for (var i in Request.requests) {\n    if (Request.requests.hasOwnProperty(i)) {\n      Request.requests[i].abort();\n    }\n  }\n}\n","/**\n * Module dependencies.\n */\n\nvar Transport = require('../transport');\nvar parseqs = require('parseqs');\nvar parser = require('engine.io-parser');\nvar inherit = require('component-inherit');\nvar yeast = require('yeast');\nvar debug = require('debug')('engine.io-client:polling');\n\n/**\n * Module exports.\n */\n\nmodule.exports = Polling;\n\n/**\n * Is XHR2 supported?\n */\n\nvar hasXHR2 = (function() {\n  var XMLHttpRequest = require('xmlhttprequest-ssl');\n  var xhr = new XMLHttpRequest({ xdomain: false });\n  return null != xhr.responseType;\n})();\n\n/**\n * Polling interface.\n *\n * @param {Object} opts\n * @api private\n */\n\nfunction Polling(opts){\n  var forceBase64 = (opts && opts.forceBase64);\n  if (!hasXHR2 || forceBase64) {\n    this.supportsBinary = false;\n  }\n  Transport.call(this, opts);\n}\n\n/**\n * Inherits from Transport.\n */\n\ninherit(Polling, Transport);\n\n/**\n * Transport name.\n */\n\nPolling.prototype.name = 'polling';\n\n/**\n * Opens the socket (triggers polling). We write a PING message to determine\n * when the transport is open.\n *\n * @api private\n */\n\nPolling.prototype.doOpen = function(){\n  this.poll();\n};\n\n/**\n * Pauses polling.\n *\n * @param {Function} callback upon buffers are flushed and transport is paused\n * @api private\n */\n\nPolling.prototype.pause = function(onPause){\n  var pending = 0;\n  var self = this;\n\n  this.readyState = 'pausing';\n\n  function pause(){\n    debug('paused');\n    self.readyState = 'paused';\n    onPause();\n  }\n\n  if (this.polling || !this.writable) {\n    var total = 0;\n\n    if (this.polling) {\n      debug('we are currently polling - waiting to pause');\n      total++;\n      this.once('pollComplete', function(){\n        debug('pre-pause polling complete');\n        --total || pause();\n      });\n    }\n\n    if (!this.writable) {\n      debug('we are currently writing - waiting to pause');\n      total++;\n      this.once('drain', function(){\n        debug('pre-pause writing complete');\n        --total || pause();\n      });\n    }\n  } else {\n    pause();\n  }\n};\n\n/**\n * Starts polling cycle.\n *\n * @api public\n */\n\nPolling.prototype.poll = function(){\n  debug('polling');\n  this.polling = true;\n  this.doPoll();\n  this.emit('poll');\n};\n\n/**\n * Overloads onData to detect payloads.\n *\n * @api private\n */\n\nPolling.prototype.onData = function(data){\n  var self = this;\n  debug('polling got data %s', data);\n  var callback = function(packet, index, total) {\n    // if its the first message we consider the transport open\n    if ('opening' == self.readyState) {\n      self.onOpen();\n    }\n\n    // if its a close packet, we close the ongoing requests\n    if ('close' == packet.type) {\n      self.onClose();\n      return false;\n    }\n\n    // otherwise bypass onData and handle the message\n    self.onPacket(packet);\n  };\n\n  // decode payload\n  parser.decodePayload(data, this.socket.binaryType, callback);\n\n  // if an event did not trigger closing\n  if ('closed' != this.readyState) {\n    // if we got data we're not polling\n    this.polling = false;\n    this.emit('pollComplete');\n\n    if ('open' == this.readyState) {\n      this.poll();\n    } else {\n      debug('ignoring poll - transport state \"%s\"', this.readyState);\n    }\n  }\n};\n\n/**\n * For polling, send a close packet.\n *\n * @api private\n */\n\nPolling.prototype.doClose = function(){\n  var self = this;\n\n  function close(){\n    debug('writing close packet');\n    self.write([{ type: 'close' }]);\n  }\n\n  if ('open' == this.readyState) {\n    debug('transport open - closing');\n    close();\n  } else {\n    // in case we're trying to close while\n    // handshaking is in progress (GH-164)\n    debug('transport not open - deferring close');\n    this.once('open', close);\n  }\n};\n\n/**\n * Writes a packets payload.\n *\n * @param {Array} data packets\n * @param {Function} drain callback\n * @api private\n */\n\nPolling.prototype.write = function(packets){\n  var self = this;\n  this.writable = false;\n  var callbackfn = function() {\n    self.writable = true;\n    self.emit('drain');\n  };\n\n  var self = this;\n  parser.encodePayload(packets, this.supportsBinary, function(data) {\n    self.doWrite(data, callbackfn);\n  });\n};\n\n/**\n * Generates uri for connection.\n *\n * @api private\n */\n\nPolling.prototype.uri = function(){\n  var query = this.query || {};\n  var schema = this.secure ? 'https' : 'http';\n  var port = '';\n\n  // cache busting is forced\n  if (false !== this.timestampRequests) {\n    query[this.timestampParam] = yeast();\n  }\n\n  if (!this.supportsBinary && !query.sid) {\n    query.b64 = 1;\n  }\n\n  query = parseqs.encode(query);\n\n  // avoid port if default for schema\n  if (this.port && (('https' == schema && this.port != 443) ||\n     ('http' == schema && this.port != 80))) {\n    port = ':' + this.port;\n  }\n\n  // prepend ? to query\n  if (query.length) {\n    query = '?' + query;\n  }\n\n  var ipv6 = this.hostname.indexOf(':') !== -1;\n  return schema + '://' + (ipv6 ? '[' + this.hostname + ']' : this.hostname) + port + this.path + query;\n};\n","/**\n * Module dependencies.\n */\n\nvar Transport = require('../transport');\nvar parser = require('engine.io-parser');\nvar parseqs = require('parseqs');\nvar inherit = require('component-inherit');\nvar yeast = require('yeast');\nvar debug = require('debug')('engine.io-client:websocket');\nvar BrowserWebSocket = global.WebSocket || global.MozWebSocket;\n\n/**\n * Get either the `WebSocket` or `MozWebSocket` globals\n * in the browser or try to resolve WebSocket-compatible\n * interface exposed by `ws` for Node-like environment.\n */\n\nvar WebSocket = BrowserWebSocket;\nif (!WebSocket && typeof window === 'undefined') {\n  try {\n    WebSocket = require('ws');\n  } catch (e) { }\n}\n\n/**\n * Module exports.\n */\n\nmodule.exports = WS;\n\n/**\n * WebSocket transport constructor.\n *\n * @api {Object} connection options\n * @api public\n */\n\nfunction WS(opts){\n  var forceBase64 = (opts && opts.forceBase64);\n  if (forceBase64) {\n    this.supportsBinary = false;\n  }\n  this.perMessageDeflate = opts.perMessageDeflate;\n  Transport.call(this, opts);\n}\n\n/**\n * Inherits from Transport.\n */\n\ninherit(WS, Transport);\n\n/**\n * Transport name.\n *\n * @api public\n */\n\nWS.prototype.name = 'websocket';\n\n/*\n * WebSockets support binary\n */\n\nWS.prototype.supportsBinary = true;\n\n/**\n * Opens socket.\n *\n * @api private\n */\n\nWS.prototype.doOpen = function(){\n  if (!this.check()) {\n    // let probe timeout\n    return;\n  }\n\n  var self = this;\n  var uri = this.uri();\n  var protocols = void(0);\n  var opts = {\n    agent: this.agent,\n    perMessageDeflate: this.perMessageDeflate\n  };\n\n  // SSL options for Node.js client\n  opts.pfx = this.pfx;\n  opts.key = this.key;\n  opts.passphrase = this.passphrase;\n  opts.cert = this.cert;\n  opts.ca = this.ca;\n  opts.ciphers = this.ciphers;\n  opts.rejectUnauthorized = this.rejectUnauthorized;\n  if (this.extraHeaders) {\n    opts.headers = this.extraHeaders;\n  }\n\n  this.ws = BrowserWebSocket ? new WebSocket(uri) : new WebSocket(uri, protocols, opts);\n\n  if (this.ws.binaryType === undefined) {\n    this.supportsBinary = false;\n  }\n\n  if (this.ws.supports && this.ws.supports.binary) {\n    this.supportsBinary = true;\n    this.ws.binaryType = 'buffer';\n  } else {\n    this.ws.binaryType = 'arraybuffer';\n  }\n\n  this.addEventListeners();\n};\n\n/**\n * Adds event listeners to the socket\n *\n * @api private\n */\n\nWS.prototype.addEventListeners = function(){\n  var self = this;\n\n  this.ws.onopen = function(){\n    self.onOpen();\n  };\n  this.ws.onclose = function(){\n    self.onClose();\n  };\n  this.ws.onmessage = function(ev){\n    self.onData(ev.data);\n  };\n  this.ws.onerror = function(e){\n    self.onError('websocket error', e);\n  };\n};\n\n/**\n * Override `onData` to use a timer on iOS.\n * See: https://gist.github.com/mloughran/2052006\n *\n * @api private\n */\n\nif ('undefined' != typeof navigator\n  && /iPad|iPhone|iPod/i.test(navigator.userAgent)) {\n  WS.prototype.onData = function(data){\n    var self = this;\n    setTimeout(function(){\n      Transport.prototype.onData.call(self, data);\n    }, 0);\n  };\n}\n\n/**\n * Writes data to socket.\n *\n * @param {Array} array of packets.\n * @api private\n */\n\nWS.prototype.write = function(packets){\n  var self = this;\n  this.writable = false;\n\n  // encodePacket efficient as it uses WS framing\n  // no need for encodePayload\n  var total = packets.length;\n  for (var i = 0, l = total; i < l; i++) {\n    (function(packet) {\n      parser.encodePacket(packet, self.supportsBinary, function(data) {\n        if (!BrowserWebSocket) {\n          // always create a new object (GH-437)\n          var opts = {};\n          if (packet.options) {\n            opts.compress = packet.options.compress;\n          }\n\n          if (self.perMessageDeflate) {\n            var len = 'string' == typeof data ? global.Buffer.byteLength(data) : data.length;\n            if (len < self.perMessageDeflate.threshold) {\n              opts.compress = false;\n            }\n          }\n        }\n\n        //Sometimes the websocket has already been closed but the browser didn't\n        //have a chance of informing us about it yet, in that case send will\n        //throw an error\n        try {\n          if (BrowserWebSocket) {\n            // TypeError is thrown when passing the second argument on Safari\n            self.ws.send(data);\n          } else {\n            self.ws.send(data, opts);\n          }\n        } catch (e){\n          debug('websocket closed before onclose event');\n        }\n\n        --total || done();\n      });\n    })(packets[i]);\n  }\n\n  function done(){\n    self.emit('flush');\n\n    // fake drain\n    // defer to next tick to allow Socket to clear writeBuffer\n    setTimeout(function(){\n      self.writable = true;\n      self.emit('drain');\n    }, 0);\n  }\n};\n\n/**\n * Called upon close\n *\n * @api private\n */\n\nWS.prototype.onClose = function(){\n  Transport.prototype.onClose.call(this);\n};\n\n/**\n * Closes socket.\n *\n * @api private\n */\n\nWS.prototype.doClose = function(){\n  if (typeof this.ws !== 'undefined') {\n    this.ws.close();\n  }\n};\n\n/**\n * Generates uri for connection.\n *\n * @api private\n */\n\nWS.prototype.uri = function(){\n  var query = this.query || {};\n  var schema = this.secure ? 'wss' : 'ws';\n  var port = '';\n\n  // avoid port if default for schema\n  if (this.port && (('wss' == schema && this.port != 443)\n    || ('ws' == schema && this.port != 80))) {\n    port = ':' + this.port;\n  }\n\n  // append timestamp to URI\n  if (this.timestampRequests) {\n    query[this.timestampParam] = yeast();\n  }\n\n  // communicate binary support capabilities\n  if (!this.supportsBinary) {\n    query.b64 = 1;\n  }\n\n  query = parseqs.encode(query);\n\n  // prepend ? to query\n  if (query.length) {\n    query = '?' + query;\n  }\n\n  var ipv6 = this.hostname.indexOf(':') !== -1;\n  return schema + '://' + (ipv6 ? '[' + this.hostname + ']' : this.hostname) + port + this.path + query;\n};\n\n/**\n * Feature detection for WebSocket.\n *\n * @return {Boolean} whether this transport is available.\n * @api public\n */\n\nWS.prototype.check = function(){\n  return !!WebSocket && !('__initialize' in WebSocket && this.name === WS.prototype.name);\n};\n","// browser shim for xmlhttprequest module\nvar hasCORS = require('has-cors');\n\nmodule.exports = function(opts) {\n  var xdomain = opts.xdomain;\n\n  // scheme must be same when usign XDomainRequest\n  // http://blogs.msdn.com/b/ieinternals/archive/2010/05/13/xdomainrequest-restrictions-limitations-and-workarounds.aspx\n  var xscheme = opts.xscheme;\n\n  // XDomainRequest has a flow of not sending cookie, therefore it should be disabled as a default.\n  // https://github.com/Automattic/engine.io-client/pull/217\n  var enablesXDR = opts.enablesXDR;\n\n  // XMLHttpRequest can be disabled on IE\n  try {\n    if ('undefined' != typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n      return new XMLHttpRequest();\n    }\n  } catch (e) { }\n\n  // Use XDomainRequest for IE8 if enablesXDR is true\n  // because loading bar keeps flashing when using jsonp-polling\n  // https://github.com/yujiosaka/socke.io-ie8-loading-example\n  try {\n    if ('undefined' != typeof XDomainRequest && !xscheme && enablesXDR) {\n      return new XDomainRequest();\n    }\n  } catch (e) { }\n\n  if (!xdomain) {\n    try {\n      return new ActiveXObject('Microsoft.XMLHTTP');\n    } catch(e) { }\n  }\n}\n","/**\n * Module dependencies.\n */\n\nvar keys = require('./keys');\nvar hasBinary = require('has-binary');\nvar sliceBuffer = require('arraybuffer.slice');\nvar base64encoder = require('base64-arraybuffer');\nvar after = require('after');\nvar utf8 = require('utf8');\n\n/**\n * Check if we are running an android browser. That requires us to use\n * ArrayBuffer with polling transports...\n *\n * http://ghinda.net/jpeg-blob-ajax-android/\n */\n\nvar isAndroid = navigator.userAgent.match(/Android/i);\n\n/**\n * Check if we are running in PhantomJS.\n * Uploading a Blob with PhantomJS does not work correctly, as reported here:\n * https://github.com/ariya/phantomjs/issues/11395\n * @type boolean\n */\nvar isPhantomJS = /PhantomJS/i.test(navigator.userAgent);\n\n/**\n * When true, avoids using Blobs to encode payloads.\n * @type boolean\n */\nvar dontSendBlobs = isAndroid || isPhantomJS;\n\n/**\n * Current protocol version.\n */\n\nexports.protocol = 3;\n\n/**\n * Packet types.\n */\n\nvar packets = exports.packets = {\n    open:     0    // non-ws\n  , close:    1    // non-ws\n  , ping:     2\n  , pong:     3\n  , message:  4\n  , upgrade:  5\n  , noop:     6\n};\n\nvar packetslist = keys(packets);\n\n/**\n * Premade error packet.\n */\n\nvar err = { type: 'error', data: 'parser error' };\n\n/**\n * Create a blob api even for blob builder when vendor prefixes exist\n */\n\nvar Blob = require('blob');\n\n/**\n * Encodes a packet.\n *\n *     <packet type id> [ <data> ]\n *\n * Example:\n *\n *     5hello world\n *     3\n *     4\n *\n * Binary is encoded in an identical principle\n *\n * @api private\n */\n\nexports.encodePacket = function (packet, supportsBinary, utf8encode, callback) {\n  if ('function' == typeof supportsBinary) {\n    callback = supportsBinary;\n    supportsBinary = false;\n  }\n\n  if ('function' == typeof utf8encode) {\n    callback = utf8encode;\n    utf8encode = null;\n  }\n\n  var data = (packet.data === undefined)\n    ? undefined\n    : packet.data.buffer || packet.data;\n\n  if (global.ArrayBuffer && data instanceof ArrayBuffer) {\n    return encodeArrayBuffer(packet, supportsBinary, callback);\n  } else if (Blob && data instanceof global.Blob) {\n    return encodeBlob(packet, supportsBinary, callback);\n  }\n\n  // might be an object with { base64: true, data: dataAsBase64String }\n  if (data && data.base64) {\n    return encodeBase64Object(packet, callback);\n  }\n\n  // Sending data as a utf-8 string\n  var encoded = packets[packet.type];\n\n  // data fragment is optional\n  if (undefined !== packet.data) {\n    encoded += utf8encode ? utf8.encode(String(packet.data)) : String(packet.data);\n  }\n\n  return callback('' + encoded);\n\n};\n\nfunction encodeBase64Object(packet, callback) {\n  // packet data is an object { base64: true, data: dataAsBase64String }\n  var message = 'b' + exports.packets[packet.type] + packet.data.data;\n  return callback(message);\n}\n\n/**\n * Encode packet helpers for binary types\n */\n\nfunction encodeArrayBuffer(packet, supportsBinary, callback) {\n  if (!supportsBinary) {\n    return exports.encodeBase64Packet(packet, callback);\n  }\n\n  var data = packet.data;\n  var contentArray = new Uint8Array(data);\n  var resultBuffer = new Uint8Array(1 + data.byteLength);\n\n  resultBuffer[0] = packets[packet.type];\n  for (var i = 0; i < contentArray.length; i++) {\n    resultBuffer[i+1] = contentArray[i];\n  }\n\n  return callback(resultBuffer.buffer);\n}\n\nfunction encodeBlobAsArrayBuffer(packet, supportsBinary, callback) {\n  if (!supportsBinary) {\n    return exports.encodeBase64Packet(packet, callback);\n  }\n\n  var fr = new FileReader();\n  fr.onload = function() {\n    packet.data = fr.result;\n    exports.encodePacket(packet, supportsBinary, true, callback);\n  };\n  return fr.readAsArrayBuffer(packet.data);\n}\n\nfunction encodeBlob(packet, supportsBinary, callback) {\n  if (!supportsBinary) {\n    return exports.encodeBase64Packet(packet, callback);\n  }\n\n  if (dontSendBlobs) {\n    return encodeBlobAsArrayBuffer(packet, supportsBinary, callback);\n  }\n\n  var length = new Uint8Array(1);\n  length[0] = packets[packet.type];\n  var blob = new Blob([length.buffer, packet.data]);\n\n  return callback(blob);\n}\n\n/**\n * Encodes a packet with binary data in a base64 string\n *\n * @param {Object} packet, has `type` and `data`\n * @return {String} base64 encoded message\n */\n\nexports.encodeBase64Packet = function(packet, callback) {\n  var message = 'b' + exports.packets[packet.type];\n  if (Blob && packet.data instanceof global.Blob) {\n    var fr = new FileReader();\n    fr.onload = function() {\n      var b64 = fr.result.split(',')[1];\n      callback(message + b64);\n    };\n    return fr.readAsDataURL(packet.data);\n  }\n\n  var b64data;\n  try {\n    b64data = String.fromCharCode.apply(null, new Uint8Array(packet.data));\n  } catch (e) {\n    // iPhone Safari doesn't let you apply with typed arrays\n    var typed = new Uint8Array(packet.data);\n    var basic = new Array(typed.length);\n    for (var i = 0; i < typed.length; i++) {\n      basic[i] = typed[i];\n    }\n    b64data = String.fromCharCode.apply(null, basic);\n  }\n  message += global.btoa(b64data);\n  return callback(message);\n};\n\n/**\n * Decodes a packet. Changes format to Blob if requested.\n *\n * @return {Object} with `type` and `data` (if any)\n * @api private\n */\n\nexports.decodePacket = function (data, binaryType, utf8decode) {\n  // String data\n  if (typeof data == 'string' || data === undefined) {\n    if (data.charAt(0) == 'b') {\n      return exports.decodeBase64Packet(data.substr(1), binaryType);\n    }\n\n    if (utf8decode) {\n      try {\n        data = utf8.decode(data);\n      } catch (e) {\n        return err;\n      }\n    }\n    var type = data.charAt(0);\n\n    if (Number(type) != type || !packetslist[type]) {\n      return err;\n    }\n\n    if (data.length > 1) {\n      return { type: packetslist[type], data: data.substring(1) };\n    } else {\n      return { type: packetslist[type] };\n    }\n  }\n\n  var asArray = new Uint8Array(data);\n  var type = asArray[0];\n  var rest = sliceBuffer(data, 1);\n  if (Blob && binaryType === 'blob') {\n    rest = new Blob([rest]);\n  }\n  return { type: packetslist[type], data: rest };\n};\n\n/**\n * Decodes a packet encoded in a base64 string\n *\n * @param {String} base64 encoded message\n * @return {Object} with `type` and `data` (if any)\n */\n\nexports.decodeBase64Packet = function(msg, binaryType) {\n  var type = packetslist[msg.charAt(0)];\n  if (!global.ArrayBuffer) {\n    return { type: type, data: { base64: true, data: msg.substr(1) } };\n  }\n\n  var data = base64encoder.decode(msg.substr(1));\n\n  if (binaryType === 'blob' && Blob) {\n    data = new Blob([data]);\n  }\n\n  return { type: type, data: data };\n};\n\n/**\n * Encodes multiple messages (payload).\n *\n *     <length>:data\n *\n * Example:\n *\n *     11:hello world2:hi\n *\n * If any contents are binary, they will be encoded as base64 strings. Base64\n * encoded strings are marked with a b before the length specifier\n *\n * @param {Array} packets\n * @api private\n */\n\nexports.encodePayload = function (packets, supportsBinary, callback) {\n  if (typeof supportsBinary == 'function') {\n    callback = supportsBinary;\n    supportsBinary = null;\n  }\n\n  var isBinary = hasBinary(packets);\n\n  if (supportsBinary && isBinary) {\n    if (Blob && !dontSendBlobs) {\n      return exports.encodePayloadAsBlob(packets, callback);\n    }\n\n    return exports.encodePayloadAsArrayBuffer(packets, callback);\n  }\n\n  if (!packets.length) {\n    return callback('0:');\n  }\n\n  function setLengthHeader(message) {\n    return message.length + ':' + message;\n  }\n\n  function encodeOne(packet, doneCallback) {\n    exports.encodePacket(packet, !isBinary ? false : supportsBinary, true, function(message) {\n      doneCallback(null, setLengthHeader(message));\n    });\n  }\n\n  map(packets, encodeOne, function(err, results) {\n    return callback(results.join(''));\n  });\n};\n\n/**\n * Async array map using after\n */\n\nfunction map(ary, each, done) {\n  var result = new Array(ary.length);\n  var next = after(ary.length, done);\n\n  var eachWithIndex = function(i, el, cb) {\n    each(el, function(error, msg) {\n      result[i] = msg;\n      cb(error, result);\n    });\n  };\n\n  for (var i = 0; i < ary.length; i++) {\n    eachWithIndex(i, ary[i], next);\n  }\n}\n\n/*\n * Decodes data when a payload is maybe expected. Possible binary contents are\n * decoded from their base64 representation\n *\n * @param {String} data, callback method\n * @api public\n */\n\nexports.decodePayload = function (data, binaryType, callback) {\n  if (typeof data != 'string') {\n    return exports.decodePayloadAsBinary(data, binaryType, callback);\n  }\n\n  if (typeof binaryType === 'function') {\n    callback = binaryType;\n    binaryType = null;\n  }\n\n  var packet;\n  if (data == '') {\n    // parser error - ignoring payload\n    return callback(err, 0, 1);\n  }\n\n  var length = ''\n    , n, msg;\n\n  for (var i = 0, l = data.length; i < l; i++) {\n    var chr = data.charAt(i);\n\n    if (':' != chr) {\n      length += chr;\n    } else {\n      if ('' == length || (length != (n = Number(length)))) {\n        // parser error - ignoring payload\n        return callback(err, 0, 1);\n      }\n\n      msg = data.substr(i + 1, n);\n\n      if (length != msg.length) {\n        // parser error - ignoring payload\n        return callback(err, 0, 1);\n      }\n\n      if (msg.length) {\n        packet = exports.decodePacket(msg, binaryType, true);\n\n        if (err.type == packet.type && err.data == packet.data) {\n          // parser error in individual packet - ignoring payload\n          return callback(err, 0, 1);\n        }\n\n        var ret = callback(packet, i + n, l);\n        if (false === ret) return;\n      }\n\n      // advance cursor\n      i += n;\n      length = '';\n    }\n  }\n\n  if (length != '') {\n    // parser error - ignoring payload\n    return callback(err, 0, 1);\n  }\n\n};\n\n/**\n * Encodes multiple messages (payload) as binary.\n *\n * <1 = binary, 0 = string><number from 0-9><number from 0-9>[...]<number\n * 255><data>\n *\n * Example:\n * 1 3 255 1 2 3, if the binary contents are interpreted as 8 bit integers\n *\n * @param {Array} packets\n * @return {ArrayBuffer} encoded payload\n * @api private\n */\n\nexports.encodePayloadAsArrayBuffer = function(packets, callback) {\n  if (!packets.length) {\n    return callback(new ArrayBuffer(0));\n  }\n\n  function encodeOne(packet, doneCallback) {\n    exports.encodePacket(packet, true, true, function(data) {\n      return doneCallback(null, data);\n    });\n  }\n\n  map(packets, encodeOne, function(err, encodedPackets) {\n    var totalLength = encodedPackets.reduce(function(acc, p) {\n      var len;\n      if (typeof p === 'string'){\n        len = p.length;\n      } else {\n        len = p.byteLength;\n      }\n      return acc + len.toString().length + len + 2; // string/binary identifier + separator = 2\n    }, 0);\n\n    var resultArray = new Uint8Array(totalLength);\n\n    var bufferIndex = 0;\n    encodedPackets.forEach(function(p) {\n      var isString = typeof p === 'string';\n      var ab = p;\n      if (isString) {\n        var view = new Uint8Array(p.length);\n        for (var i = 0; i < p.length; i++) {\n          view[i] = p.charCodeAt(i);\n        }\n        ab = view.buffer;\n      }\n\n      if (isString) { // not true binary\n        resultArray[bufferIndex++] = 0;\n      } else { // true binary\n        resultArray[bufferIndex++] = 1;\n      }\n\n      var lenStr = ab.byteLength.toString();\n      for (var i = 0; i < lenStr.length; i++) {\n        resultArray[bufferIndex++] = parseInt(lenStr[i]);\n      }\n      resultArray[bufferIndex++] = 255;\n\n      var view = new Uint8Array(ab);\n      for (var i = 0; i < view.length; i++) {\n        resultArray[bufferIndex++] = view[i];\n      }\n    });\n\n    return callback(resultArray.buffer);\n  });\n};\n\n/**\n * Encode as Blob\n */\n\nexports.encodePayloadAsBlob = function(packets, callback) {\n  function encodeOne(packet, doneCallback) {\n    exports.encodePacket(packet, true, true, function(encoded) {\n      var binaryIdentifier = new Uint8Array(1);\n      binaryIdentifier[0] = 1;\n      if (typeof encoded === 'string') {\n        var view = new Uint8Array(encoded.length);\n        for (var i = 0; i < encoded.length; i++) {\n          view[i] = encoded.charCodeAt(i);\n        }\n        encoded = view.buffer;\n        binaryIdentifier[0] = 0;\n      }\n\n      var len = (encoded instanceof ArrayBuffer)\n        ? encoded.byteLength\n        : encoded.size;\n\n      var lenStr = len.toString();\n      var lengthAry = new Uint8Array(lenStr.length + 1);\n      for (var i = 0; i < lenStr.length; i++) {\n        lengthAry[i] = parseInt(lenStr[i]);\n      }\n      lengthAry[lenStr.length] = 255;\n\n      if (Blob) {\n        var blob = new Blob([binaryIdentifier.buffer, lengthAry.buffer, encoded]);\n        doneCallback(null, blob);\n      }\n    });\n  }\n\n  map(packets, encodeOne, function(err, results) {\n    return callback(new Blob(results));\n  });\n};\n\n/*\n * Decodes data when a payload is maybe expected. Strings are decoded by\n * interpreting each byte as a key code for entries marked to start with 0. See\n * description of encodePayloadAsBinary\n *\n * @param {ArrayBuffer} data, callback method\n * @api public\n */\n\nexports.decodePayloadAsBinary = function (data, binaryType, callback) {\n  if (typeof binaryType === 'function') {\n    callback = binaryType;\n    binaryType = null;\n  }\n\n  var bufferTail = data;\n  var buffers = [];\n\n  var numberTooLong = false;\n  while (bufferTail.byteLength > 0) {\n    var tailArray = new Uint8Array(bufferTail);\n    var isString = tailArray[0] === 0;\n    var msgLength = '';\n\n    for (var i = 1; ; i++) {\n      if (tailArray[i] == 255) break;\n\n      if (msgLength.length > 310) {\n        numberTooLong = true;\n        break;\n      }\n\n      msgLength += tailArray[i];\n    }\n\n    if(numberTooLong) return callback(err, 0, 1);\n\n    bufferTail = sliceBuffer(bufferTail, 2 + msgLength.length);\n    msgLength = parseInt(msgLength);\n\n    var msg = sliceBuffer(bufferTail, 0, msgLength);\n    if (isString) {\n      try {\n        msg = String.fromCharCode.apply(null, new Uint8Array(msg));\n      } catch (e) {\n        // iPhone Safari doesn't let you apply to typed arrays\n        var typed = new Uint8Array(msg);\n        msg = '';\n        for (var i = 0; i < typed.length; i++) {\n          msg += String.fromCharCode(typed[i]);\n        }\n      }\n    }\n\n    buffers.push(msg);\n    bufferTail = sliceBuffer(bufferTail, msgLength);\n  }\n\n  var total = buffers.length;\n  buffers.forEach(function(buffer, i) {\n    callback(exports.decodePacket(buffer, binaryType, true), i, total);\n  });\n};\n","\n/**\n * Gets the keys for an object.\n *\n * @return {Array} keys\n * @api private\n */\n\nmodule.exports = Object.keys || function keys (obj){\n  var arr = [];\n  var has = Object.prototype.hasOwnProperty;\n\n  for (var i in obj) {\n    if (has.call(obj, i)) {\n      arr.push(i);\n    }\n  }\n  return arr;\n};\n","\n/*\n * Module requirements.\n */\n\nvar isArray = require('isarray');\n\n/**\n * Module exports.\n */\n\nmodule.exports = hasBinary;\n\n/**\n * Checks for binary data.\n *\n * Right now only Buffer and ArrayBuffer are supported..\n *\n * @param {Object} anything\n * @api public\n */\n\nfunction hasBinary(data) {\n\n  function _hasBinary(obj) {\n    if (!obj) return false;\n\n    if ( (global.Buffer && global.Buffer.isBuffer(obj)) ||\n         (global.ArrayBuffer && obj instanceof ArrayBuffer) ||\n         (global.Blob && obj instanceof Blob) ||\n         (global.File && obj instanceof File)\n        ) {\n      return true;\n    }\n\n    if (isArray(obj)) {\n      for (var i = 0; i < obj.length; i++) {\n          if (_hasBinary(obj[i])) {\n              return true;\n          }\n      }\n    } else if (obj && 'object' == typeof obj) {\n      if (obj.toJSON) {\n        obj = obj.toJSON();\n      }\n\n      for (var key in obj) {\n        if (Object.prototype.hasOwnProperty.call(obj, key) && _hasBinary(obj[key])) {\n          return true;\n        }\n      }\n    }\n\n    return false;\n  }\n\n  return _hasBinary(data);\n}\n","module.exports = Array.isArray || function (arr) {\n  return Object.prototype.toString.call(arr) == '[object Array]';\n};\n","\n/*\n * Module requirements.\n */\n\nvar isArray = require('isarray');\n\n/**\n * Module exports.\n */\n\nmodule.exports = hasBinary;\n\n/**\n * Checks for binary data.\n *\n * Right now only Buffer and ArrayBuffer are supported..\n *\n * @param {Object} anything\n * @api public\n */\n\nfunction hasBinary(data) {\n\n  function _hasBinary(obj) {\n    if (!obj) return false;\n\n    if ( (global.Buffer && global.Buffer.isBuffer && global.Buffer.isBuffer(obj)) ||\n         (global.ArrayBuffer && obj instanceof ArrayBuffer) ||\n         (global.Blob && obj instanceof Blob) ||\n         (global.File && obj instanceof File)\n        ) {\n      return true;\n    }\n\n    if (isArray(obj)) {\n      for (var i = 0; i < obj.length; i++) {\n          if (_hasBinary(obj[i])) {\n              return true;\n          }\n      }\n    } else if (obj && 'object' == typeof obj) {\n      // see: https://github.com/Automattic/has-binary/pull/4\n      if (obj.toJSON && 'function' == typeof obj.toJSON) {\n        obj = obj.toJSON();\n      }\n\n      for (var key in obj) {\n        if (Object.prototype.hasOwnProperty.call(obj, key) && _hasBinary(obj[key])) {\n          return true;\n        }\n      }\n    }\n\n    return false;\n  }\n\n  return _hasBinary(data);\n}\n","\n/**\n * Module exports.\n *\n * Logic borrowed from Modernizr:\n *\n *   - https://github.com/Modernizr/Modernizr/blob/master/feature-detects/cors.js\n */\n\ntry {\n  module.exports = typeof XMLHttpRequest !== 'undefined' &&\n    'withCredentials' in new XMLHttpRequest();\n} catch (err) {\n  // if XMLHttp support is disabled in IE then it will throw\n  // when trying to create\n  module.exports = false;\n}\n","\nvar indexOf = [].indexOf;\n\nmodule.exports = function(arr, obj){\n  if (indexOf) return arr.indexOf(obj);\n  for (var i = 0; i < arr.length; ++i) {\n    if (arr[i] === obj) return i;\n  }\n  return -1;\n};",";(function (global, factory) { // eslint-disable-line\r\n\t\"use strict\"\r\n\t/* eslint-disable no-undef */\r\n\tvar m = factory(global)\r\n\tif (typeof module === \"object\" && module != null && module.exports) {\r\n\t\tmodule.exports = m\r\n\t} else if (typeof define === \"function\" && define.amd) {\r\n\t\tdefine(function () { return m })\r\n\t} else {\r\n\t\tglobal.m = m\r\n\t}\r\n\t/* eslint-enable no-undef */\r\n})(typeof window !== \"undefined\" ? window : {}, function (global, undefined) { // eslint-disable-line\r\n\t\"use strict\"\r\n\r\n\tm.version = function () {\r\n\t\treturn \"v0.2.3\"\r\n\t}\r\n\r\n\tvar hasOwn = {}.hasOwnProperty\r\n\tvar type = {}.toString\r\n\r\n\tfunction isFunction(object) {\r\n\t\treturn typeof object === \"function\"\r\n\t}\r\n\r\n\tfunction isObject(object) {\r\n\t\treturn type.call(object) === \"[object Object]\"\r\n\t}\r\n\r\n\tfunction isString(object) {\r\n\t\treturn type.call(object) === \"[object String]\"\r\n\t}\r\n\r\n\tvar isArray = Array.isArray || function (object) {\r\n\t\treturn type.call(object) === \"[object Array]\"\r\n\t}\r\n\r\n\tfunction noop() {}\r\n\r\n\tvar voidElements = {\r\n\t\tAREA: 1,\r\n\t\tBASE: 1,\r\n\t\tBR: 1,\r\n\t\tCOL: 1,\r\n\t\tCOMMAND: 1,\r\n\t\tEMBED: 1,\r\n\t\tHR: 1,\r\n\t\tIMG: 1,\r\n\t\tINPUT: 1,\r\n\t\tKEYGEN: 1,\r\n\t\tLINK: 1,\r\n\t\tMETA: 1,\r\n\t\tPARAM: 1,\r\n\t\tSOURCE: 1,\r\n\t\tTRACK: 1,\r\n\t\tWBR: 1\r\n\t}\r\n\r\n\t// caching commonly used variables\r\n\tvar $document, $location, $requestAnimationFrame, $cancelAnimationFrame\r\n\r\n\t// self invoking function needed because of the way mocks work\r\n\tfunction initialize(mock) {\r\n\t\t$document = mock.document\r\n\t\t$location = mock.location\r\n\t\t$cancelAnimationFrame = mock.cancelAnimationFrame || mock.clearTimeout\r\n\t\t$requestAnimationFrame = mock.requestAnimationFrame || mock.setTimeout\r\n\t}\r\n\r\n\t// testing API\r\n\tm.deps = function (mock) {\r\n\t\tinitialize(global = mock || window)\r\n\t\treturn global\r\n\t}\r\n\r\n\tm.deps(global)\r\n\r\n\t/**\r\n\t * @typedef {String} Tag\r\n\t * A string that looks like -> div.classname#id[param=one][param2=two]\r\n\t * Which describes a DOM node\r\n\t */\r\n\r\n\tfunction parseTagAttrs(cell, tag) {\r\n\t\tvar classes = []\r\n\t\tvar parser = /(?:(^|#|\\.)([^#\\.\\[\\]]+))|(\\[.+?\\])/g\r\n\t\tvar match\r\n\r\n\t\twhile ((match = parser.exec(tag))) {\r\n\t\t\tif (match[1] === \"\" && match[2]) {\r\n\t\t\t\tcell.tag = match[2]\r\n\t\t\t} else if (match[1] === \"#\") {\r\n\t\t\t\tcell.attrs.id = match[2]\r\n\t\t\t} else if (match[1] === \".\") {\r\n\t\t\t\tclasses.push(match[2])\r\n\t\t\t} else if (match[3][0] === \"[\") {\r\n\t\t\t\tvar pair = /\\[(.+?)(?:=(\"|'|)(.*?)\\2)?\\]/.exec(match[3])\r\n\t\t\t\tcell.attrs[pair[1]] = pair[3] || (pair[2] ? \"\" : true)\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\treturn classes\r\n\t}\r\n\r\n\tfunction getVirtualChildren(args, hasAttrs) {\r\n\t\tvar children = hasAttrs ? args.slice(1) : args\r\n\r\n\t\tif (children.length === 1 && isArray(children[0])) {\r\n\t\t\treturn children[0]\r\n\t\t} else {\r\n\t\t\treturn children\r\n\t\t}\r\n\t}\r\n\r\n\tfunction assignAttrs(target, attrs, classes) {\r\n\t\tvar classAttr = \"class\" in attrs ? \"class\" : \"className\"\r\n\r\n\t\tfor (var attrName in attrs) {\r\n\t\t\tif (hasOwn.call(attrs, attrName)) {\r\n\t\t\t\tif (attrName === classAttr &&\r\n\t\t\t\t\t\tattrs[attrName] != null &&\r\n\t\t\t\t\t\tattrs[attrName] !== \"\") {\r\n\t\t\t\t\tclasses.push(attrs[attrName])\r\n\t\t\t\t\t// create key in correct iteration order\r\n\t\t\t\t\ttarget[attrName] = \"\"\r\n\t\t\t\t} else {\r\n\t\t\t\t\ttarget[attrName] = attrs[attrName]\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tif (classes.length) target[classAttr] = classes.join(\" \")\r\n\t}\r\n\r\n\t/**\r\n\t *\r\n\t * @param {Tag} The DOM node tag\r\n\t * @param {Object=[]} optional key-value pairs to be mapped to DOM attrs\r\n\t * @param {...mNode=[]} Zero or more Mithril child nodes. Can be an array,\r\n\t *                      or splat (optional)\r\n\t */\r\n\tfunction m(tag, pairs) {\r\n\t\tvar args = [].slice.call(arguments, 1)\r\n\r\n\t\tif (isObject(tag)) return parameterize(tag, args)\r\n\r\n\t\tif (!isString(tag)) {\r\n\t\t\tthrow new Error(\"selector in m(selector, attrs, children) should \" +\r\n\t\t\t\t\"be a string\")\r\n\t\t}\r\n\r\n\t\tvar hasAttrs = pairs != null && isObject(pairs) &&\r\n\t\t\t!(\"tag\" in pairs || \"view\" in pairs || \"subtree\" in pairs)\r\n\r\n\t\tvar attrs = hasAttrs ? pairs : {}\r\n\t\tvar cell = {\r\n\t\t\ttag: \"div\",\r\n\t\t\tattrs: {},\r\n\t\t\tchildren: getVirtualChildren(args, hasAttrs)\r\n\t\t}\r\n\r\n\t\tassignAttrs(cell.attrs, attrs, parseTagAttrs(cell, tag))\r\n\t\treturn cell\r\n\t}\r\n\r\n\tfunction forEach(list, f) {\r\n\t\tfor (var i = 0; i < list.length && !f(list[i], i++);) {\r\n\t\t\t// function called in condition\r\n\t\t}\r\n\t}\r\n\r\n\tfunction forKeys(list, f) {\r\n\t\tforEach(list, function (attrs, i) {\r\n\t\t\treturn (attrs = attrs && attrs.attrs) &&\r\n\t\t\t\tattrs.key != null &&\r\n\t\t\t\tf(attrs, i)\r\n\t\t})\r\n\t}\r\n\t// This function was causing deopts in Chrome.\r\n\tfunction dataToString(data) {\r\n\t\t// data.toString() might throw or return null if data is the return\r\n\t\t// value of Console.log in some versions of Firefox (behavior depends on\r\n\t\t// version)\r\n\t\ttry {\r\n\t\t\tif (data != null && data.toString() != null) return data\r\n\t\t} catch (e) {\r\n\t\t\t// silently ignore errors\r\n\t\t}\r\n\t\treturn \"\"\r\n\t}\r\n\r\n\t// This function was causing deopts in Chrome.\r\n\tfunction injectTextNode(parentElement, first, index, data) {\r\n\t\ttry {\r\n\t\t\tinsertNode(parentElement, first, index)\r\n\t\t\tfirst.nodeValue = data\r\n\t\t} catch (e) {\r\n\t\t\t// IE erroneously throws error when appending an empty text node\r\n\t\t\t// after a null\r\n\t\t}\r\n\t}\r\n\r\n\tfunction flatten(list) {\r\n\t\t// recursively flatten array\r\n\t\tfor (var i = 0; i < list.length; i++) {\r\n\t\t\tif (isArray(list[i])) {\r\n\t\t\t\tlist = list.concat.apply([], list)\r\n\t\t\t\t// check current index again and flatten until there are no more\r\n\t\t\t\t// nested arrays at that index\r\n\t\t\t\ti--\r\n\t\t\t}\r\n\t\t}\r\n\t\treturn list\r\n\t}\r\n\r\n\tfunction insertNode(parentElement, node, index) {\r\n\t\tparentElement.insertBefore(node,\r\n\t\t\tparentElement.childNodes[index] || null)\r\n\t}\r\n\r\n\tvar DELETION = 1\r\n\tvar INSERTION = 2\r\n\tvar MOVE = 3\r\n\r\n\tfunction handleKeysDiffer(data, existing, cached, parentElement) {\r\n\t\tforKeys(data, function (key, i) {\r\n\t\t\texisting[key = key.key] = existing[key] ? {\r\n\t\t\t\taction: MOVE,\r\n\t\t\t\tindex: i,\r\n\t\t\t\tfrom: existing[key].index,\r\n\t\t\t\telement: cached.nodes[existing[key].index] ||\r\n\t\t\t\t\t$document.createElement(\"div\")\r\n\t\t\t} : {action: INSERTION, index: i}\r\n\t\t})\r\n\r\n\t\tvar actions = []\r\n\t\tfor (var prop in existing) if (hasOwn.call(existing, prop)) {\r\n\t\t\tactions.push(existing[prop])\r\n\t\t}\r\n\r\n\t\tvar changes = actions.sort(sortChanges)\r\n\t\tvar newCached = new Array(cached.length)\r\n\r\n\t\tnewCached.nodes = cached.nodes.slice()\r\n\r\n\t\tforEach(changes, function (change) {\r\n\t\t\tvar index = change.index\r\n\t\t\tif (change.action === DELETION) {\r\n\t\t\t\tclear(cached[index].nodes, cached[index])\r\n\t\t\t\tnewCached.splice(index, 1)\r\n\t\t\t}\r\n\t\t\tif (change.action === INSERTION) {\r\n\t\t\t\tvar dummy = $document.createElement(\"div\")\r\n\t\t\t\tdummy.key = data[index].attrs.key\r\n\t\t\t\tinsertNode(parentElement, dummy, index)\r\n\t\t\t\tnewCached.splice(index, 0, {\r\n\t\t\t\t\tattrs: {key: data[index].attrs.key},\r\n\t\t\t\t\tnodes: [dummy]\r\n\t\t\t\t})\r\n\t\t\t\tnewCached.nodes[index] = dummy\r\n\t\t\t}\r\n\r\n\t\t\tif (change.action === MOVE) {\r\n\t\t\t\tvar changeElement = change.element\r\n\t\t\t\tvar maybeChanged = parentElement.childNodes[index]\r\n\t\t\t\tif (maybeChanged !== changeElement && changeElement !== null) {\r\n\t\t\t\t\tparentElement.insertBefore(changeElement,\r\n\t\t\t\t\t\tmaybeChanged || null)\r\n\t\t\t\t}\r\n\t\t\t\tnewCached[index] = cached[change.from]\r\n\t\t\t\tnewCached.nodes[index] = changeElement\r\n\t\t\t}\r\n\t\t})\r\n\r\n\t\treturn newCached\r\n\t}\r\n\r\n\tfunction diffKeys(data, cached, existing, parentElement) {\r\n\t\tvar keysDiffer = data.length !== cached.length\r\n\r\n\t\tif (!keysDiffer) {\r\n\t\t\tforKeys(data, function (attrs, i) {\r\n\t\t\t\tvar cachedCell = cached[i]\r\n\t\t\t\treturn keysDiffer = cachedCell &&\r\n\t\t\t\t\tcachedCell.attrs &&\r\n\t\t\t\t\tcachedCell.attrs.key !== attrs.key\r\n\t\t\t})\r\n\t\t}\r\n\r\n\t\tif (keysDiffer) {\r\n\t\t\treturn handleKeysDiffer(data, existing, cached, parentElement)\r\n\t\t} else {\r\n\t\t\treturn cached\r\n\t\t}\r\n\t}\r\n\r\n\tfunction diffArray(data, cached, nodes) {\r\n\t\t// diff the array itself\r\n\r\n\t\t// update the list of DOM nodes by collecting the nodes from each item\r\n\t\tforEach(data, function (_, i) {\r\n\t\t\tif (cached[i] != null) nodes.push.apply(nodes, cached[i].nodes)\r\n\t\t})\r\n\t\t// remove items from the end of the array if the new array is shorter\r\n\t\t// than the old one. if errors ever happen here, the issue is most\r\n\t\t// likely a bug in the construction of the `cached` data structure\r\n\t\t// somewhere earlier in the program\r\n\t\tforEach(cached.nodes, function (node, i) {\r\n\t\t\tif (node.parentNode != null && nodes.indexOf(node) < 0) {\r\n\t\t\t\tclear([node], [cached[i]])\r\n\t\t\t}\r\n\t\t})\r\n\r\n\t\tif (data.length < cached.length) cached.length = data.length\r\n\t\tcached.nodes = nodes\r\n\t}\r\n\r\n\tfunction buildArrayKeys(data) {\r\n\t\tvar guid = 0\r\n\t\tforKeys(data, function () {\r\n\t\t\tforEach(data, function (attrs) {\r\n\t\t\t\tif ((attrs = attrs && attrs.attrs) && attrs.key == null) {\r\n\t\t\t\t\tattrs.key = \"__mithril__\" + guid++\r\n\t\t\t\t}\r\n\t\t\t})\r\n\t\t\treturn 1\r\n\t\t})\r\n\t}\r\n\r\n\tfunction isDifferentEnough(data, cached, dataAttrKeys) {\r\n\t\tif (data.tag !== cached.tag) return true\r\n\r\n\t\tif (dataAttrKeys.sort().join() !==\r\n\t\t\t\tObject.keys(cached.attrs).sort().join()) {\r\n\t\t\treturn true\r\n\t\t}\r\n\r\n\t\tif (data.attrs.id !== cached.attrs.id) {\r\n\t\t\treturn true\r\n\t\t}\r\n\r\n\t\tif (data.attrs.key !== cached.attrs.key) {\r\n\t\t\treturn true\r\n\t\t}\r\n\r\n\t\tif (m.redraw.strategy() === \"all\") {\r\n\t\t\treturn !cached.configContext || cached.configContext.retain !== true\r\n\t\t}\r\n\r\n\t\tif (m.redraw.strategy() === \"diff\") {\r\n\t\t\treturn cached.configContext && cached.configContext.retain === false\r\n\t\t}\r\n\r\n\t\treturn false\r\n\t}\r\n\r\n\tfunction maybeRecreateObject(data, cached, dataAttrKeys) {\r\n\t\t// if an element is different enough from the one in cache, recreate it\r\n\t\tif (isDifferentEnough(data, cached, dataAttrKeys)) {\r\n\t\t\tif (cached.nodes.length) clear(cached.nodes)\r\n\r\n\t\t\tif (cached.configContext &&\r\n\t\t\t\t\tisFunction(cached.configContext.onunload)) {\r\n\t\t\t\tcached.configContext.onunload()\r\n\t\t\t}\r\n\r\n\t\t\tif (cached.controllers) {\r\n\t\t\t\tforEach(cached.controllers, function (controller) {\r\n\t\t\t\t\tif (controller.onunload) controller.onunload({preventDefault: noop});\r\n\t\t\t\t});\r\n\t\t\t}\r\n\t\t}\r\n\t}\r\n\r\n\tfunction getObjectNamespace(data, namespace) {\r\n\t\tif (data.attrs.xmlns) return data.attrs.xmlns\r\n\t\tif (data.tag === \"svg\") return \"http://www.w3.org/2000/svg\"\r\n\t\tif (data.tag === \"math\") return \"http://www.w3.org/1998/Math/MathML\"\r\n\t\treturn namespace\r\n\t}\r\n\r\n\tvar pendingRequests = 0\r\n\tm.startComputation = function () { pendingRequests++ }\r\n\tm.endComputation = function () {\r\n\t\tif (pendingRequests > 1) {\r\n\t\t\tpendingRequests--\r\n\t\t} else {\r\n\t\t\tpendingRequests = 0\r\n\t\t\tm.redraw()\r\n\t\t}\r\n\t}\r\n\r\n\tfunction unloadCachedControllers(cached, views, controllers) {\r\n\t\tif (controllers.length) {\r\n\t\t\tcached.views = views\r\n\t\t\tcached.controllers = controllers\r\n\t\t\tforEach(controllers, function (controller) {\r\n\t\t\t\tif (controller.onunload && controller.onunload.$old) {\r\n\t\t\t\t\tcontroller.onunload = controller.onunload.$old\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif (pendingRequests && controller.onunload) {\r\n\t\t\t\t\tvar onunload = controller.onunload\r\n\t\t\t\t\tcontroller.onunload = noop\r\n\t\t\t\t\tcontroller.onunload.$old = onunload\r\n\t\t\t\t}\r\n\t\t\t})\r\n\t\t}\r\n\t}\r\n\r\n\tfunction scheduleConfigsToBeCalled(configs, data, node, isNew, cached) {\r\n\t\t// schedule configs to be called. They are called after `build` finishes\r\n\t\t// running\r\n\t\tif (isFunction(data.attrs.config)) {\r\n\t\t\tvar context = cached.configContext = cached.configContext || {}\r\n\r\n\t\t\t// bind\r\n\t\t\tconfigs.push(function () {\r\n\t\t\t\treturn data.attrs.config.call(data, node, !isNew, context,\r\n\t\t\t\t\tcached)\r\n\t\t\t})\r\n\t\t}\r\n\t}\r\n\r\n\tfunction buildUpdatedNode(\r\n\t\tcached,\r\n\t\tdata,\r\n\t\teditable,\r\n\t\thasKeys,\r\n\t\tnamespace,\r\n\t\tviews,\r\n\t\tconfigs,\r\n\t\tcontrollers\r\n\t) {\r\n\t\tvar node = cached.nodes[0]\r\n\r\n\t\tif (hasKeys) {\r\n\t\t\tsetAttributes(node, data.tag, data.attrs, cached.attrs, namespace)\r\n\t\t}\r\n\r\n\t\tcached.children = build(\r\n\t\t\tnode,\r\n\t\t\tdata.tag,\r\n\t\t\tundefined,\r\n\t\t\tundefined,\r\n\t\t\tdata.children,\r\n\t\t\tcached.children,\r\n\t\t\tfalse,\r\n\t\t\t0,\r\n\t\t\tdata.attrs.contenteditable ? node : editable,\r\n\t\t\tnamespace,\r\n\t\t\tconfigs\r\n\t\t)\r\n\r\n\t\tcached.nodes.intact = true\r\n\r\n\t\tif (controllers.length) {\r\n\t\t\tcached.views = views\r\n\t\t\tcached.controllers = controllers\r\n\t\t}\r\n\r\n\t\treturn node\r\n\t}\r\n\r\n\tfunction handleNonexistentNodes(data, parentElement, index) {\r\n\t\tvar nodes\r\n\t\tif (data.$trusted) {\r\n\t\t\tnodes = injectHTML(parentElement, index, data)\r\n\t\t} else {\r\n\t\t\tnodes = [$document.createTextNode(data)]\r\n\t\t\tif (!(parentElement.nodeName in voidElements)) {\r\n\t\t\t\tinsertNode(parentElement, nodes[0], index)\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tvar cached\r\n\r\n\t\tif (typeof data === \"string\" ||\r\n\t\t\t\ttypeof data === \"number\" ||\r\n\t\t\t\ttypeof data === \"boolean\") {\r\n\t\t\tcached = new data.constructor(data)\r\n\t\t} else {\r\n\t\t\tcached = data\r\n\t\t}\r\n\r\n\t\tcached.nodes = nodes\r\n\t\treturn cached\r\n\t}\r\n\r\n\tfunction reattachNodes(\r\n\t\tdata,\r\n\t\tcached,\r\n\t\tparentElement,\r\n\t\teditable,\r\n\t\tindex,\r\n\t\tparentTag\r\n\t) {\r\n\t\tvar nodes = cached.nodes\r\n\t\tif (!editable || editable !== $document.activeElement) {\r\n\t\t\tif (data.$trusted) {\r\n\t\t\t\tclear(nodes, cached)\r\n\t\t\t\tnodes = injectHTML(parentElement, index, data)\r\n\t\t\t} else if (parentTag === \"textarea\") {\r\n\t\t\t\t// <textarea> uses `value` instead of `nodeValue`.\r\n\t\t\t\tparentElement.value = data\r\n\t\t\t} else if (editable) {\r\n\t\t\t\t// contenteditable nodes use `innerHTML` instead of `nodeValue`.\r\n\t\t\t\teditable.innerHTML = data\r\n\t\t\t} else {\r\n\t\t\t\t// was a trusted string\r\n\t\t\t\tif (nodes[0].nodeType === 1 || nodes.length > 1 ||\r\n\t\t\t\t\t\t(nodes[0].nodeValue.trim &&\r\n\t\t\t\t\t\t\t!nodes[0].nodeValue.trim())) {\r\n\t\t\t\t\tclear(cached.nodes, cached)\r\n\t\t\t\t\tnodes = [$document.createTextNode(data)]\r\n\t\t\t\t}\r\n\r\n\t\t\t\tinjectTextNode(parentElement, nodes[0], index, data)\r\n\t\t\t}\r\n\t\t}\r\n\t\tcached = new data.constructor(data)\r\n\t\tcached.nodes = nodes\r\n\t\treturn cached\r\n\t}\r\n\r\n\tfunction handleTextNode(\r\n\t\tcached,\r\n\t\tdata,\r\n\t\tindex,\r\n\t\tparentElement,\r\n\t\tshouldReattach,\r\n\t\teditable,\r\n\t\tparentTag\r\n\t) {\r\n\t\tif (!cached.nodes.length) {\r\n\t\t\treturn handleNonexistentNodes(data, parentElement, index)\r\n\t\t} else if (cached.valueOf() !== data.valueOf() || shouldReattach) {\r\n\t\t\treturn reattachNodes(data, cached, parentElement, editable, index,\r\n\t\t\t\tparentTag)\r\n\t\t} else {\r\n\t\t\treturn (cached.nodes.intact = true, cached)\r\n\t\t}\r\n\t}\r\n\r\n\tfunction getSubArrayCount(item) {\r\n\t\tif (item.$trusted) {\r\n\t\t\t// fix offset of next element if item was a trusted string w/ more\r\n\t\t\t// than one html element\r\n\t\t\t// the first clause in the regexp matches elements\r\n\t\t\t// the second clause (after the pipe) matches text nodes\r\n\t\t\tvar match = item.match(/<[^\\/]|\\>\\s*[^<]/g)\r\n\t\t\tif (match != null) return match.length\r\n\t\t} else if (isArray(item)) {\r\n\t\t\treturn item.length\r\n\t\t}\r\n\t\treturn 1\r\n\t}\r\n\r\n\tfunction buildArray(\r\n\t\tdata,\r\n\t\tcached,\r\n\t\tparentElement,\r\n\t\tindex,\r\n\t\tparentTag,\r\n\t\tshouldReattach,\r\n\t\teditable,\r\n\t\tnamespace,\r\n\t\tconfigs\r\n\t) {\r\n\t\tdata = flatten(data)\r\n\t\tvar nodes = []\r\n\t\tvar intact = cached.length === data.length\r\n\t\tvar subArrayCount = 0\r\n\r\n\t\t// keys algorithm: sort elements without recreating them if keys are\r\n\t\t// present\r\n\t\t//\r\n\t\t// 1) create a map of all existing keys, and mark all for deletion\r\n\t\t// 2) add new keys to map and mark them for addition\r\n\t\t// 3) if key exists in new list, change action from deletion to a move\r\n\t\t// 4) for each key, handle its corresponding action as marked in\r\n\t\t//    previous steps\r\n\r\n\t\tvar existing = {}\r\n\t\tvar shouldMaintainIdentities = false\r\n\r\n\t\tforKeys(cached, function (attrs, i) {\r\n\t\t\tshouldMaintainIdentities = true\r\n\t\t\texisting[cached[i].attrs.key] = {action: DELETION, index: i}\r\n\t\t})\r\n\r\n\t\tbuildArrayKeys(data)\r\n\t\tif (shouldMaintainIdentities) {\r\n\t\t\tcached = diffKeys(data, cached, existing, parentElement)\r\n\t\t}\r\n\t\t// end key algorithm\r\n\r\n\t\tvar cacheCount = 0\r\n\t\t// faster explicitly written\r\n\t\tfor (var i = 0, len = data.length; i < len; i++) {\r\n\t\t\t// diff each item in the array\r\n\t\t\tvar item = build(\r\n\t\t\t\tparentElement,\r\n\t\t\t\tparentTag,\r\n\t\t\t\tcached,\r\n\t\t\t\tindex,\r\n\t\t\t\tdata[i],\r\n\t\t\t\tcached[cacheCount],\r\n\t\t\t\tshouldReattach,\r\n\t\t\t\tindex + subArrayCount || subArrayCount,\r\n\t\t\t\teditable,\r\n\t\t\t\tnamespace,\r\n\t\t\t\tconfigs)\r\n\r\n\t\t\tif (item !== undefined) {\r\n\t\t\t\tintact = intact && item.nodes.intact\r\n\t\t\t\tsubArrayCount += getSubArrayCount(item)\r\n\t\t\t\tcached[cacheCount++] = item\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tif (!intact) diffArray(data, cached, nodes)\r\n\t\treturn cached\r\n\t}\r\n\r\n\tfunction makeCache(data, cached, index, parentIndex, parentCache) {\r\n\t\tif (cached != null) {\r\n\t\t\tif (type.call(cached) === type.call(data)) return cached\r\n\r\n\t\t\tif (parentCache && parentCache.nodes) {\r\n\t\t\t\tvar offset = index - parentIndex\r\n\t\t\t\tvar end = offset + (isArray(data) ? data : cached.nodes).length\r\n\t\t\t\tclear(\r\n\t\t\t\t\tparentCache.nodes.slice(offset, end),\r\n\t\t\t\t\tparentCache.slice(offset, end))\r\n\t\t\t} else if (cached.nodes) {\r\n\t\t\t\tclear(cached.nodes, cached)\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tcached = new data.constructor()\r\n\t\t// if constructor creates a virtual dom element, use a blank object as\r\n\t\t// the base cached node instead of copying the virtual el (#277)\r\n\t\tif (cached.tag) cached = {}\r\n\t\tcached.nodes = []\r\n\t\treturn cached\r\n\t}\r\n\r\n\tfunction constructNode(data, namespace) {\r\n\t\tif (data.attrs.is) {\r\n\t\t\tif (namespace == null) {\r\n\t\t\t\treturn $document.createElement(data.tag, data.attrs.is)\r\n\t\t\t} else {\r\n\t\t\t\treturn $document.createElementNS(namespace, data.tag,\r\n\t\t\t\t\tdata.attrs.is)\r\n\t\t\t}\r\n\t\t} else if (namespace == null) {\r\n\t\t\treturn $document.createElement(data.tag)\r\n\t\t} else {\r\n\t\t\treturn $document.createElementNS(namespace, data.tag)\r\n\t\t}\r\n\t}\r\n\r\n\tfunction constructAttrs(data, node, namespace, hasKeys) {\r\n\t\tif (hasKeys) {\r\n\t\t\treturn setAttributes(node, data.tag, data.attrs, {}, namespace)\r\n\t\t} else {\r\n\t\t\treturn data.attrs\r\n\t\t}\r\n\t}\r\n\r\n\tfunction constructChildren(\r\n\t\tdata,\r\n\t\tnode,\r\n\t\tcached,\r\n\t\teditable,\r\n\t\tnamespace,\r\n\t\tconfigs\r\n\t) {\r\n\t\tif (data.children != null && data.children.length > 0) {\r\n\t\t\treturn build(\r\n\t\t\t\tnode,\r\n\t\t\t\tdata.tag,\r\n\t\t\t\tundefined,\r\n\t\t\t\tundefined,\r\n\t\t\t\tdata.children,\r\n\t\t\t\tcached.children,\r\n\t\t\t\ttrue,\r\n\t\t\t\t0,\r\n\t\t\t\tdata.attrs.contenteditable ? node : editable,\r\n\t\t\t\tnamespace,\r\n\t\t\t\tconfigs)\r\n\t\t} else {\r\n\t\t\treturn data.children\r\n\t\t}\r\n\t}\r\n\r\n\tfunction reconstructCached(\r\n\t\tdata,\r\n\t\tattrs,\r\n\t\tchildren,\r\n\t\tnode,\r\n\t\tnamespace,\r\n\t\tviews,\r\n\t\tcontrollers\r\n\t) {\r\n\t\tvar cached = {\r\n\t\t\ttag: data.tag,\r\n\t\t\tattrs: attrs,\r\n\t\t\tchildren: children,\r\n\t\t\tnodes: [node]\r\n\t\t}\r\n\r\n\t\tunloadCachedControllers(cached, views, controllers)\r\n\r\n\t\tif (cached.children && !cached.children.nodes) {\r\n\t\t\tcached.children.nodes = []\r\n\t\t}\r\n\r\n\t\t// edge case: setting value on <select> doesn't work before children\r\n\t\t// exist, so set it again after children have been created\r\n\t\tif (data.tag === \"select\" && \"value\" in data.attrs) {\r\n\t\t\tsetAttributes(node, data.tag, {value: data.attrs.value}, {},\r\n\t\t\t\tnamespace)\r\n\t\t}\r\n\r\n\t\treturn cached\r\n\t}\r\n\r\n\tfunction getController(views, view, cachedControllers, controller) {\r\n\t\tvar controllerIndex\r\n\r\n\t\tif (m.redraw.strategy() === \"diff\" && views) {\r\n\t\t\tcontrollerIndex = views.indexOf(view)\r\n\t\t} else {\r\n\t\t\tcontrollerIndex = -1\r\n\t\t}\r\n\r\n\t\tif (controllerIndex > -1) {\r\n\t\t\treturn cachedControllers[controllerIndex]\r\n\t\t} else if (isFunction(controller)) {\r\n\t\t\treturn new controller()\r\n\t\t} else {\r\n\t\t\treturn {}\r\n\t\t}\r\n\t}\r\n\r\n\tvar unloaders = []\r\n\r\n\tfunction updateLists(views, controllers, view, controller) {\r\n\t\tif (controller.onunload != null && unloaders.map(function(u) {return u.handler}).indexOf(controller.onunload) < 0) {\r\n\t\t\tunloaders.push({\r\n\t\t\t\tcontroller: controller,\r\n\t\t\t\thandler: controller.onunload\r\n\t\t\t})\r\n\t\t}\r\n\r\n\t\tviews.push(view)\r\n\t\tcontrollers.push(controller)\r\n\t}\r\n\r\n\tvar forcing = false\r\n\tfunction checkView(data, view, cached, cachedControllers, controllers, views) {\r\n\t\tvar controller = getController(cached.views, view, cachedControllers, data.controller)\r\n\t\tvar key = data && data.attrs && data.attrs.key\r\n\t\tdata = pendingRequests === 0 || forcing || cachedControllers && cachedControllers.indexOf(controller) > -1 ? data.view(controller) : {tag: \"placeholder\"}\r\n\t\tif (data.subtree === \"retain\") return data;\r\n\t\tdata.attrs = data.attrs || {}\r\n\t\tdata.attrs.key = key\r\n\t\tupdateLists(views, controllers, view, controller)\r\n\t\treturn data\r\n\t}\r\n\r\n\tfunction markViews(data, cached, views, controllers) {\r\n\t\tvar cachedControllers = cached && cached.controllers\r\n\r\n\t\twhile (data.view != null) {\r\n\t\t\tdata = checkView(\r\n\t\t\t\tdata,\r\n\t\t\t\tdata.view.$original || data.view,\r\n\t\t\t\tcached,\r\n\t\t\t\tcachedControllers,\r\n\t\t\t\tcontrollers,\r\n\t\t\t\tviews)\r\n\t\t}\r\n\r\n\t\treturn data\r\n\t}\r\n\r\n\tfunction buildObject( // eslint-disable-line max-statements\r\n\t\tdata,\r\n\t\tcached,\r\n\t\teditable,\r\n\t\tparentElement,\r\n\t\tindex,\r\n\t\tshouldReattach,\r\n\t\tnamespace,\r\n\t\tconfigs\r\n\t) {\r\n\t\tvar views = []\r\n\t\tvar controllers = []\r\n\r\n\t\tdata = markViews(data, cached, views, controllers)\r\n\r\n\t\tif (data.subtree === \"retain\") return cached\r\n\r\n\t\tif (!data.tag && controllers.length) {\r\n\t\t\tthrow new Error(\"Component template must return a virtual \" +\r\n\t\t\t\t\"element, not an array, string, etc.\")\r\n\t\t}\r\n\r\n\t\tdata.attrs = data.attrs || {}\r\n\t\tcached.attrs = cached.attrs || {}\r\n\r\n\t\tvar dataAttrKeys = Object.keys(data.attrs)\r\n\t\tvar hasKeys = dataAttrKeys.length > (\"key\" in data.attrs ? 1 : 0)\r\n\r\n\t\tmaybeRecreateObject(data, cached, dataAttrKeys)\r\n\r\n\t\tif (!isString(data.tag)) return\r\n\r\n\t\tvar isNew = cached.nodes.length === 0\r\n\r\n\t\tnamespace = getObjectNamespace(data, namespace)\r\n\r\n\t\tvar node\r\n\t\tif (isNew) {\r\n\t\t\tnode = constructNode(data, namespace)\r\n\t\t\t// set attributes first, then create children\r\n\t\t\tvar attrs = constructAttrs(data, node, namespace, hasKeys)\r\n\r\n\t\t\tvar children = constructChildren(data, node, cached, editable,\r\n\t\t\t\tnamespace, configs)\r\n\r\n\t\t\tcached = reconstructCached(\r\n\t\t\t\tdata,\r\n\t\t\t\tattrs,\r\n\t\t\t\tchildren,\r\n\t\t\t\tnode,\r\n\t\t\t\tnamespace,\r\n\t\t\t\tviews,\r\n\t\t\t\tcontrollers)\r\n\t\t} else {\r\n\t\t\tnode = buildUpdatedNode(\r\n\t\t\t\tcached,\r\n\t\t\t\tdata,\r\n\t\t\t\teditable,\r\n\t\t\t\thasKeys,\r\n\t\t\t\tnamespace,\r\n\t\t\t\tviews,\r\n\t\t\t\tconfigs,\r\n\t\t\t\tcontrollers)\r\n\t\t}\r\n\r\n\t\tif (isNew || shouldReattach === true && node != null) {\r\n\t\t\tinsertNode(parentElement, node, index)\r\n\t\t}\r\n\r\n\t\t// The configs are called after `build` finishes running\r\n\t\tscheduleConfigsToBeCalled(configs, data, node, isNew, cached)\r\n\r\n\t\treturn cached\r\n\t}\r\n\r\n\tfunction build(\r\n\t\tparentElement,\r\n\t\tparentTag,\r\n\t\tparentCache,\r\n\t\tparentIndex,\r\n\t\tdata,\r\n\t\tcached,\r\n\t\tshouldReattach,\r\n\t\tindex,\r\n\t\teditable,\r\n\t\tnamespace,\r\n\t\tconfigs\r\n\t) {\r\n\t\t/*\r\n\t\t * `build` is a recursive function that manages creation/diffing/removal\r\n\t\t * of DOM elements based on comparison between `data` and `cached` the\r\n\t\t * diff algorithm can be summarized as this:\r\n\t\t *\r\n\t\t * 1 - compare `data` and `cached`\r\n\t\t * 2 - if they are different, copy `data` to `cached` and update the DOM\r\n\t\t *     based on what the difference is\r\n\t\t * 3 - recursively apply this algorithm for every array and for the\r\n\t\t *     children of every virtual element\r\n\t\t *\r\n\t\t * The `cached` data structure is essentially the same as the previous\r\n\t\t * redraw's `data` data structure, with a few additions:\r\n\t\t * - `cached` always has a property called `nodes`, which is a list of\r\n\t\t *    DOM elements that correspond to the data represented by the\r\n\t\t *    respective virtual element\r\n\t\t * - in order to support attaching `nodes` as a property of `cached`,\r\n\t\t *    `cached` is *always* a non-primitive object, i.e. if the data was\r\n\t\t *    a string, then cached is a String instance. If data was `null` or\r\n\t\t *    `undefined`, cached is `new String(\"\")`\r\n\t\t * - `cached also has a `configContext` property, which is the state\r\n\t\t *    storage object exposed by config(element, isInitialized, context)\r\n\t\t * - when `cached` is an Object, it represents a virtual element; when\r\n\t\t *    it's an Array, it represents a list of elements; when it's a\r\n\t\t *    String, Number or Boolean, it represents a text node\r\n\t\t *\r\n\t\t * `parentElement` is a DOM element used for W3C DOM API calls\r\n\t\t * `parentTag` is only used for handling a corner case for textarea\r\n\t\t * values\r\n\t\t * `parentCache` is used to remove nodes in some multi-node cases\r\n\t\t * `parentIndex` and `index` are used to figure out the offset of nodes.\r\n\t\t * They're artifacts from before arrays started being flattened and are\r\n\t\t * likely refactorable\r\n\t\t * `data` and `cached` are, respectively, the new and old nodes being\r\n\t\t * diffed\r\n\t\t * `shouldReattach` is a flag indicating whether a parent node was\r\n\t\t * recreated (if so, and if this node is reused, then this node must\r\n\t\t * reattach itself to the new parent)\r\n\t\t * `editable` is a flag that indicates whether an ancestor is\r\n\t\t * contenteditable\r\n\t\t * `namespace` indicates the closest HTML namespace as it cascades down\r\n\t\t * from an ancestor\r\n\t\t * `configs` is a list of config functions to run after the topmost\r\n\t\t * `build` call finishes running\r\n\t\t *\r\n\t\t * there's logic that relies on the assumption that null and undefined\r\n\t\t * data are equivalent to empty strings\r\n\t\t * - this prevents lifecycle surprises from procedural helpers that mix\r\n\t\t *   implicit and explicit return statements (e.g.\r\n\t\t *   function foo() {if (cond) return m(\"div\")}\r\n\t\t * - it simplifies diffing code\r\n\t\t */\r\n\t\tdata = dataToString(data)\r\n\t\tif (data.subtree === \"retain\") return cached\r\n\t\tcached = makeCache(data, cached, index, parentIndex, parentCache)\r\n\r\n\t\tif (isArray(data)) {\r\n\t\t\treturn buildArray(\r\n\t\t\t\tdata,\r\n\t\t\t\tcached,\r\n\t\t\t\tparentElement,\r\n\t\t\t\tindex,\r\n\t\t\t\tparentTag,\r\n\t\t\t\tshouldReattach,\r\n\t\t\t\teditable,\r\n\t\t\t\tnamespace,\r\n\t\t\t\tconfigs)\r\n\t\t} else if (data != null && isObject(data)) {\r\n\t\t\treturn buildObject(\r\n\t\t\t\tdata,\r\n\t\t\t\tcached,\r\n\t\t\t\teditable,\r\n\t\t\t\tparentElement,\r\n\t\t\t\tindex,\r\n\t\t\t\tshouldReattach,\r\n\t\t\t\tnamespace,\r\n\t\t\t\tconfigs)\r\n\t\t} else if (!isFunction(data)) {\r\n\t\t\treturn handleTextNode(\r\n\t\t\t\tcached,\r\n\t\t\t\tdata,\r\n\t\t\t\tindex,\r\n\t\t\t\tparentElement,\r\n\t\t\t\tshouldReattach,\r\n\t\t\t\teditable,\r\n\t\t\t\tparentTag)\r\n\t\t} else {\r\n\t\t\treturn cached\r\n\t\t}\r\n\t}\r\n\r\n\tfunction sortChanges(a, b) {\r\n\t\treturn a.action - b.action || a.index - b.index\r\n\t}\r\n\r\n\tfunction copyStyleAttrs(node, dataAttr, cachedAttr) {\r\n\t\tfor (var rule in dataAttr) if (hasOwn.call(dataAttr, rule)) {\r\n\t\t\tif (cachedAttr == null || cachedAttr[rule] !== dataAttr[rule]) {\r\n\t\t\t\tnode.style[rule] = dataAttr[rule]\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tfor (rule in cachedAttr) if (hasOwn.call(cachedAttr, rule)) {\r\n\t\t\tif (!hasOwn.call(dataAttr, rule)) node.style[rule] = \"\"\r\n\t\t}\r\n\t}\r\n\r\n\tvar shouldUseSetAttribute = {\r\n\t\tlist: 1,\r\n\t\tstyle: 1,\r\n\t\tform: 1,\r\n\t\ttype: 1,\r\n\t\twidth: 1,\r\n\t\theight: 1\r\n\t}\r\n\r\n\tfunction setSingleAttr(\r\n\t\tnode,\r\n\t\tattrName,\r\n\t\tdataAttr,\r\n\t\tcachedAttr,\r\n\t\ttag,\r\n\t\tnamespace\r\n\t) {\r\n\t\tif (attrName === \"config\" || attrName === \"key\") {\r\n\t\t\t// `config` isn't a real attribute, so ignore it\r\n\t\t\treturn true\r\n\t\t} else if (isFunction(dataAttr) && attrName.slice(0, 2) === \"on\") {\r\n\t\t\t// hook event handlers to the auto-redrawing system\r\n\t\t\tnode[attrName] = autoredraw(dataAttr, node)\r\n\t\t} else if (attrName === \"style\" && dataAttr != null &&\r\n\t\t\t\tisObject(dataAttr)) {\r\n\t\t\t// handle `style: {...}`\r\n\t\t\tcopyStyleAttrs(node, dataAttr, cachedAttr)\r\n\t\t} else if (namespace != null) {\r\n\t\t\t// handle SVG\r\n\t\t\tif (attrName === \"href\") {\r\n\t\t\t\tnode.setAttributeNS(\"http://www.w3.org/1999/xlink\",\r\n\t\t\t\t\t\"href\", dataAttr)\r\n\t\t\t} else {\r\n\t\t\t\tnode.setAttribute(\r\n\t\t\t\t\tattrName === \"className\" ? \"class\" : attrName,\r\n\t\t\t\t\tdataAttr)\r\n\t\t\t}\r\n\t\t} else if (attrName in node && !shouldUseSetAttribute[attrName]) {\r\n\t\t\t// handle cases that are properties (but ignore cases where we\r\n\t\t\t// should use setAttribute instead)\r\n\t\t\t//\r\n\t\t\t// - list and form are typically used as strings, but are DOM\r\n\t\t\t//   element references in js\r\n\t\t\t//\r\n\t\t\t// - when using CSS selectors (e.g. `m(\"[style='']\")`), style is\r\n\t\t\t//   used as a string, but it's an object in js\r\n\t\t\t//\r\n\t\t\t// #348 don't set the value if not needed - otherwise, cursor\r\n\t\t\t// placement breaks in Chrome\r\n\t\t\ttry {\r\n\t\t\t\tif (tag !== \"input\" || node[attrName] !== dataAttr) {\r\n\t\t\t\t\tnode[attrName] = dataAttr\r\n\t\t\t\t}\r\n\t\t\t} catch (e) {\r\n\t\t\t\tnode.setAttribute(attrName, dataAttr)\r\n\t\t\t}\r\n\t\t}\r\n\t\telse node.setAttribute(attrName, dataAttr)\r\n\t}\r\n\r\n\tfunction trySetAttr(\r\n\t\tnode,\r\n\t\tattrName,\r\n\t\tdataAttr,\r\n\t\tcachedAttr,\r\n\t\tcachedAttrs,\r\n\t\ttag,\r\n\t\tnamespace\r\n\t) {\r\n\t\tif (!(attrName in cachedAttrs) || (cachedAttr !== dataAttr)) {\r\n\t\t\tcachedAttrs[attrName] = dataAttr\r\n\t\t\ttry {\r\n\t\t\t\treturn setSingleAttr(\r\n\t\t\t\t\tnode,\r\n\t\t\t\t\tattrName,\r\n\t\t\t\t\tdataAttr,\r\n\t\t\t\t\tcachedAttr,\r\n\t\t\t\t\ttag,\r\n\t\t\t\t\tnamespace)\r\n\t\t\t} catch (e) {\r\n\t\t\t\t// swallow IE's invalid argument errors to mimic HTML's\r\n\t\t\t\t// fallback-to-doing-nothing-on-invalid-attributes behavior\r\n\t\t\t\tif (e.message.indexOf(\"Invalid argument\") < 0) throw e\r\n\t\t\t}\r\n\t\t} else if (attrName === \"value\" && tag === \"input\" &&\r\n\t\t\t\tnode.value !== dataAttr) {\r\n\t\t\t// #348 dataAttr may not be a string, so use loose comparison\r\n\t\t\tnode.value = dataAttr\r\n\t\t}\r\n\t}\r\n\r\n\tfunction setAttributes(node, tag, dataAttrs, cachedAttrs, namespace) {\r\n\t\tfor (var attrName in dataAttrs) if (hasOwn.call(dataAttrs, attrName)) {\r\n\t\t\tif (trySetAttr(\r\n\t\t\t\t\tnode,\r\n\t\t\t\t\tattrName,\r\n\t\t\t\t\tdataAttrs[attrName],\r\n\t\t\t\t\tcachedAttrs[attrName],\r\n\t\t\t\t\tcachedAttrs,\r\n\t\t\t\t\ttag,\r\n\t\t\t\t\tnamespace)) {\r\n\t\t\t\tcontinue\r\n\t\t\t}\r\n\t\t}\r\n\t\treturn cachedAttrs\r\n\t}\r\n\r\n\tfunction clear(nodes, cached) {\r\n\t\tfor (var i = nodes.length - 1; i > -1; i--) {\r\n\t\t\tif (nodes[i] && nodes[i].parentNode) {\r\n\t\t\t\ttry {\r\n\t\t\t\t\tnodes[i].parentNode.removeChild(nodes[i])\r\n\t\t\t\t} catch (e) {\r\n\t\t\t\t\t/* eslint-disable max-len */\r\n\t\t\t\t\t// ignore if this fails due to order of events (see\r\n\t\t\t\t\t// http://stackoverflow.com/questions/21926083/failed-to-execute-removechild-on-node)\r\n\t\t\t\t\t/* eslint-enable max-len */\r\n\t\t\t\t}\r\n\t\t\t\tcached = [].concat(cached)\r\n\t\t\t\tif (cached[i]) unload(cached[i])\r\n\t\t\t}\r\n\t\t}\r\n\t\t// release memory if nodes is an array. This check should fail if nodes\r\n\t\t// is a NodeList (see loop above)\r\n\t\tif (nodes.length) {\r\n\t\t\tnodes.length = 0\r\n\t\t}\r\n\t}\r\n\r\n\tfunction unload(cached) {\r\n\t\tif (cached.configContext && isFunction(cached.configContext.onunload)) {\r\n\t\t\tcached.configContext.onunload()\r\n\t\t\tcached.configContext.onunload = null\r\n\t\t}\r\n\t\tif (cached.controllers) {\r\n\t\t\tforEach(cached.controllers, function (controller) {\r\n\t\t\t\tif (isFunction(controller.onunload)) {\r\n\t\t\t\t\tcontroller.onunload({preventDefault: noop})\r\n\t\t\t\t}\r\n\t\t\t})\r\n\t\t}\r\n\t\tif (cached.children) {\r\n\t\t\tif (isArray(cached.children)) forEach(cached.children, unload)\r\n\t\t\telse if (cached.children.tag) unload(cached.children)\r\n\t\t}\r\n\t}\r\n\r\n\tfunction appendTextFragment(parentElement, data) {\r\n\t\ttry {\r\n\t\t\tparentElement.appendChild(\r\n\t\t\t\t$document.createRange().createContextualFragment(data))\r\n\t\t} catch (e) {\r\n\t\t\tparentElement.insertAdjacentHTML(\"beforeend\", data)\r\n\t\t}\r\n\t}\r\n\r\n\tfunction injectHTML(parentElement, index, data) {\r\n\t\tvar nextSibling = parentElement.childNodes[index]\r\n\t\tif (nextSibling) {\r\n\t\t\tvar isElement = nextSibling.nodeType !== 1\r\n\t\t\tvar placeholder = $document.createElement(\"span\")\r\n\t\t\tif (isElement) {\r\n\t\t\t\tparentElement.insertBefore(placeholder, nextSibling || null)\r\n\t\t\t\tplaceholder.insertAdjacentHTML(\"beforebegin\", data)\r\n\t\t\t\tparentElement.removeChild(placeholder)\r\n\t\t\t} else {\r\n\t\t\t\tnextSibling.insertAdjacentHTML(\"beforebegin\", data)\r\n\t\t\t}\r\n\t\t} else {\r\n\t\t\tappendTextFragment(parentElement, data)\r\n\t\t}\r\n\r\n\t\tvar nodes = []\r\n\r\n\t\twhile (parentElement.childNodes[index] !== nextSibling) {\r\n\t\t\tnodes.push(parentElement.childNodes[index])\r\n\t\t\tindex++\r\n\t\t}\r\n\r\n\t\treturn nodes\r\n\t}\r\n\r\n\tfunction autoredraw(callback, object) {\r\n\t\treturn function (e) {\r\n\t\t\te = e || event\r\n\t\t\tm.redraw.strategy(\"diff\")\r\n\t\t\tm.startComputation()\r\n\t\t\ttry {\r\n\t\t\t\treturn callback.call(object, e)\r\n\t\t\t} finally {\r\n\t\t\t\tendFirstComputation()\r\n\t\t\t}\r\n\t\t}\r\n\t}\r\n\r\n\tvar html\r\n\tvar documentNode = {\r\n\t\tappendChild: function (node) {\r\n\t\t\tif (html === undefined) html = $document.createElement(\"html\")\r\n\t\t\tif ($document.documentElement &&\r\n\t\t\t\t\t$document.documentElement !== node) {\r\n\t\t\t\t$document.replaceChild(node, $document.documentElement)\r\n\t\t\t} else {\r\n\t\t\t\t$document.appendChild(node)\r\n\t\t\t}\r\n\r\n\t\t\tthis.childNodes = $document.childNodes\r\n\t\t},\r\n\r\n\t\tinsertBefore: function (node) {\r\n\t\t\tthis.appendChild(node)\r\n\t\t},\r\n\r\n\t\tchildNodes: []\r\n\t}\r\n\r\n\tvar nodeCache = []\r\n\tvar cellCache = {}\r\n\r\n\tm.render = function (root, cell, forceRecreation) {\r\n\t\tif (!root) {\r\n\t\t\tthrow new Error(\"Ensure the DOM element being passed to \" +\r\n\t\t\t\t\"m.route/m.mount/m.render is not undefined.\")\r\n\t\t}\r\n\t\tvar configs = []\r\n\t\tvar id = getCellCacheKey(root)\r\n\t\tvar isDocumentRoot = root === $document\r\n\t\tvar node\r\n\r\n\t\tif (isDocumentRoot || root === $document.documentElement) {\r\n\t\t\tnode = documentNode\r\n\t\t} else {\r\n\t\t\tnode = root\r\n\t\t}\r\n\r\n\t\tif (isDocumentRoot && cell.tag !== \"html\") {\r\n\t\t\tcell = {tag: \"html\", attrs: {}, children: cell}\r\n\t\t}\r\n\r\n\t\tif (cellCache[id] === undefined) clear(node.childNodes)\r\n\t\tif (forceRecreation === true) reset(root)\r\n\r\n\t\tcellCache[id] = build(\r\n\t\t\tnode,\r\n\t\t\tnull,\r\n\t\t\tundefined,\r\n\t\t\tundefined,\r\n\t\t\tcell,\r\n\t\t\tcellCache[id],\r\n\t\t\tfalse,\r\n\t\t\t0,\r\n\t\t\tnull,\r\n\t\t\tundefined,\r\n\t\t\tconfigs)\r\n\r\n\t\tforEach(configs, function (config) { config() })\r\n\t}\r\n\r\n\tfunction getCellCacheKey(element) {\r\n\t\tvar index = nodeCache.indexOf(element)\r\n\t\treturn index < 0 ? nodeCache.push(element) - 1 : index\r\n\t}\r\n\r\n\tm.trust = function (value) {\r\n\t\tvalue = new String(value) // eslint-disable-line no-new-wrappers\r\n\t\tvalue.$trusted = true\r\n\t\treturn value\r\n\t}\r\n\r\n\tfunction gettersetter(store) {\r\n\t\tfunction prop() {\r\n\t\t\tif (arguments.length) store = arguments[0]\r\n\t\t\treturn store\r\n\t\t}\r\n\r\n\t\tprop.toJSON = function () {\r\n\t\t\treturn store\r\n\t\t}\r\n\r\n\t\treturn prop\r\n\t}\r\n\r\n\tm.prop = function (store) {\r\n\t\tif ((store != null && isObject(store) || isFunction(store)) &&\r\n\t\t\t\tisFunction(store.then)) {\r\n\t\t\treturn propify(store)\r\n\t\t}\r\n\r\n\t\treturn gettersetter(store)\r\n\t}\r\n\r\n\tvar roots = []\r\n\tvar components = []\r\n\tvar controllers = []\r\n\tvar lastRedrawId = null\r\n\tvar lastRedrawCallTime = 0\r\n\tvar computePreRedrawHook = null\r\n\tvar computePostRedrawHook = null\r\n\tvar topComponent\r\n\tvar FRAME_BUDGET = 16 // 60 frames per second = 1 call per 16 ms\r\n\r\n\tfunction parameterize(component, args) {\r\n\t\tfunction controller() {\r\n\t\t\t/* eslint-disable no-invalid-this */\r\n\t\t\treturn (component.controller || noop).apply(this, args) || this\r\n\t\t\t/* eslint-enable no-invalid-this */\r\n\t\t}\r\n\r\n\t\tif (component.controller) {\r\n\t\t\tcontroller.prototype = component.controller.prototype\r\n\t\t}\r\n\r\n\t\tfunction view(ctrl) {\r\n\t\t\tvar currentArgs = [ctrl].concat(args)\r\n\t\t\tfor (var i = 1; i < arguments.length; i++) {\r\n\t\t\t\tcurrentArgs.push(arguments[i])\r\n\t\t\t}\r\n\r\n\t\t\treturn component.view.apply(component, currentArgs)\r\n\t\t}\r\n\r\n\t\tview.$original = component.view\r\n\t\tvar output = {controller: controller, view: view}\r\n\t\tif (args[0] && args[0].key != null) output.attrs = {key: args[0].key}\r\n\t\treturn output\r\n\t}\r\n\r\n\tm.component = function (component) {\r\n\t\tvar args = [].slice.call(arguments, 1)\r\n\r\n\t\treturn parameterize(component, args)\r\n\t}\r\n\r\n\tfunction checkPrevented(component, root, index, isPrevented) {\r\n\t\tif (!isPrevented) {\r\n\t\t\tm.redraw.strategy(\"all\")\r\n\t\t\tm.startComputation()\r\n\t\t\troots[index] = root\r\n\t\t\tvar currentComponent\r\n\r\n\t\t\tif (component) {\r\n\t\t\t\tcurrentComponent = topComponent = component\r\n\t\t\t} else {\r\n\t\t\t\tcurrentComponent = topComponent = component = {controller: noop}\r\n\t\t\t}\r\n\r\n\t\t\tvar controller = new (component.controller || noop)()\r\n\r\n\t\t\t// controllers may call m.mount recursively (via m.route redirects,\r\n\t\t\t// for example)\r\n\t\t\t// this conditional ensures only the last recursive m.mount call is\r\n\t\t\t// applied\r\n\t\t\tif (currentComponent === topComponent) {\r\n\t\t\t\tcontrollers[index] = controller\r\n\t\t\t\tcomponents[index] = component\r\n\t\t\t}\r\n\t\t\tendFirstComputation()\r\n\t\t\tif (component === null) {\r\n\t\t\t\tremoveRootElement(root, index)\r\n\t\t\t}\r\n\t\t\treturn controllers[index]\r\n\t\t} else if (component == null) {\r\n\t\t\tremoveRootElement(root, index)\r\n\t\t}\r\n\t}\r\n\r\n\tm.mount = m.module = function (root, component) {\r\n\t\tif (!root) {\r\n\t\t\tthrow new Error(\"Please ensure the DOM element exists before \" +\r\n\t\t\t\t\"rendering a template into it.\")\r\n\t\t}\r\n\r\n\t\tvar index = roots.indexOf(root)\r\n\t\tif (index < 0) index = roots.length\r\n\r\n\t\tvar isPrevented = false\r\n\t\tvar event = {\r\n\t\t\tpreventDefault: function () {\r\n\t\t\t\tisPrevented = true\r\n\t\t\t\tcomputePreRedrawHook = computePostRedrawHook = null\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tforEach(unloaders, function (unloader) {\r\n\t\t\tunloader.handler.call(unloader.controller, event)\r\n\t\t\tunloader.controller.onunload = null\r\n\t\t})\r\n\r\n\t\tif (isPrevented) {\r\n\t\t\tforEach(unloaders, function (unloader) {\r\n\t\t\t\tunloader.controller.onunload = unloader.handler\r\n\t\t\t})\r\n\t\t} else {\r\n\t\t\tunloaders = []\r\n\t\t}\r\n\r\n\t\tif (controllers[index] && isFunction(controllers[index].onunload)) {\r\n\t\t\tcontrollers[index].onunload(event)\r\n\t\t}\r\n\r\n\t\treturn checkPrevented(component, root, index, isPrevented)\r\n\t}\r\n\r\n\tfunction removeRootElement(root, index) {\r\n\t\troots.splice(index, 1)\r\n\t\tcontrollers.splice(index, 1)\r\n\t\tcomponents.splice(index, 1)\r\n\t\treset(root)\r\n\t\tnodeCache.splice(getCellCacheKey(root), 1)\r\n\t}\r\n\r\n\tvar redrawing = false\r\n\tm.redraw = function (force) {\r\n\t\tif (redrawing) return\r\n\t\tredrawing = true\r\n\t\tif (force) forcing = true\r\n\r\n\t\ttry {\r\n\t\t\t// lastRedrawId is a positive number if a second redraw is requested\r\n\t\t\t// before the next animation frame\r\n\t\t\t// lastRedrawID is null if it's the first redraw and not an event\r\n\t\t\t// handler\r\n\t\t\tif (lastRedrawId && !force) {\r\n\t\t\t\t// when setTimeout: only reschedule redraw if time between now\r\n\t\t\t\t// and previous redraw is bigger than a frame, otherwise keep\r\n\t\t\t\t// currently scheduled timeout\r\n\t\t\t\t// when rAF: always reschedule redraw\r\n\t\t\t\tif ($requestAnimationFrame === global.requestAnimationFrame ||\r\n\t\t\t\t\t\tnew Date() - lastRedrawCallTime > FRAME_BUDGET) {\r\n\t\t\t\t\tif (lastRedrawId > 0) $cancelAnimationFrame(lastRedrawId)\r\n\t\t\t\t\tlastRedrawId = $requestAnimationFrame(redraw, FRAME_BUDGET)\r\n\t\t\t\t}\r\n\t\t\t} else {\r\n\t\t\t\tredraw()\r\n\t\t\t\tlastRedrawId = $requestAnimationFrame(function () {\r\n\t\t\t\t\tlastRedrawId = null\r\n\t\t\t\t}, FRAME_BUDGET)\r\n\t\t\t}\r\n\t\t} finally {\r\n\t\t\tredrawing = forcing = false\r\n\t\t}\r\n\t}\r\n\r\n\tm.redraw.strategy = m.prop()\r\n\tfunction redraw() {\r\n\t\tif (computePreRedrawHook) {\r\n\t\t\tcomputePreRedrawHook()\r\n\t\t\tcomputePreRedrawHook = null\r\n\t\t}\r\n\t\tforEach(roots, function (root, i) {\r\n\t\t\tvar component = components[i]\r\n\t\t\tif (controllers[i]) {\r\n\t\t\t\tvar args = [controllers[i]]\r\n\t\t\t\tm.render(root,\r\n\t\t\t\t\tcomponent.view ? component.view(controllers[i], args) : \"\")\r\n\t\t\t}\r\n\t\t})\r\n\t\t// after rendering within a routed context, we need to scroll back to\r\n\t\t// the top, and fetch the document title for history.pushState\r\n\t\tif (computePostRedrawHook) {\r\n\t\t\tcomputePostRedrawHook()\r\n\t\t\tcomputePostRedrawHook = null\r\n\t\t}\r\n\t\tlastRedrawId = null\r\n\t\tlastRedrawCallTime = new Date()\r\n\t\tm.redraw.strategy(\"diff\")\r\n\t}\r\n\r\n\tfunction endFirstComputation() {\r\n\t\tif (m.redraw.strategy() === \"none\") {\r\n\t\t\tpendingRequests--\r\n\t\t\tm.redraw.strategy(\"diff\")\r\n\t\t} else {\r\n\t\t\tm.endComputation()\r\n\t\t}\r\n\t}\r\n\r\n\tm.withAttr = function (prop, withAttrCallback, callbackThis) {\r\n\t\treturn function (e) {\r\n\t\t\te = e || event\r\n\t\t\t/* eslint-disable no-invalid-this */\r\n\t\t\tvar currentTarget = e.currentTarget || this\r\n\t\t\tvar _this = callbackThis || this\r\n\t\t\t/* eslint-enable no-invalid-this */\r\n\t\t\tvar target = prop in currentTarget ?\r\n\t\t\t\tcurrentTarget[prop] :\r\n\t\t\t\tcurrentTarget.getAttribute(prop)\r\n\t\t\twithAttrCallback.call(_this, target)\r\n\t\t}\r\n\t}\r\n\r\n\t// routing\r\n\tvar modes = {pathname: \"\", hash: \"#\", search: \"?\"}\r\n\tvar redirect = noop\r\n\tvar isDefaultRoute = false\r\n\tvar routeParams, currentRoute\r\n\r\n\tm.route = function (root, arg1, arg2, vdom) { // eslint-disable-line\r\n\t\t// m.route()\r\n\t\tif (arguments.length === 0) return currentRoute\r\n\t\t// m.route(el, defaultRoute, routes)\r\n\t\tif (arguments.length === 3 && isString(arg1)) {\r\n\t\t\tredirect = function (source) {\r\n\t\t\t\tvar path = currentRoute = normalizeRoute(source)\r\n\t\t\t\tif (!routeByValue(root, arg2, path)) {\r\n\t\t\t\t\tif (isDefaultRoute) {\r\n\t\t\t\t\t\tthrow new Error(\"Ensure the default route matches \" +\r\n\t\t\t\t\t\t\t\"one of the routes defined in m.route\")\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\tisDefaultRoute = true\r\n\t\t\t\t\tm.route(arg1, true)\r\n\t\t\t\t\tisDefaultRoute = false\r\n\t\t\t\t}\r\n\t\t\t}\r\n\r\n\t\t\tvar listener = m.route.mode === \"hash\" ?\r\n\t\t\t\t\"onhashchange\" :\r\n\t\t\t\t\"onpopstate\"\r\n\r\n\t\t\tglobal[listener] = function () {\r\n\t\t\t\tvar path = $location[m.route.mode]\r\n\t\t\t\tif (m.route.mode === \"pathname\") path += $location.search\r\n\t\t\t\tif (currentRoute !== normalizeRoute(path)) redirect(path)\r\n\t\t\t}\r\n\r\n\t\t\tcomputePreRedrawHook = setScroll\r\n\t\t\tglobal[listener]()\r\n\r\n\t\t\treturn\r\n\t\t}\r\n\r\n\t\t// config: m.route\r\n\t\tif (root.addEventListener || root.attachEvent) {\r\n\t\t\tvar base = m.route.mode !== \"pathname\" ? $location.pathname : \"\"\r\n\t\t\troot.href = base + modes[m.route.mode] + vdom.attrs.href\r\n\t\t\tif (root.addEventListener) {\r\n\t\t\t\troot.removeEventListener(\"click\", routeUnobtrusive)\r\n\t\t\t\troot.addEventListener(\"click\", routeUnobtrusive)\r\n\t\t\t} else {\r\n\t\t\t\troot.detachEvent(\"onclick\", routeUnobtrusive)\r\n\t\t\t\troot.attachEvent(\"onclick\", routeUnobtrusive)\r\n\t\t\t}\r\n\r\n\t\t\treturn\r\n\t\t}\r\n\t\t// m.route(route, params, shouldReplaceHistoryEntry)\r\n\t\tif (isString(root)) {\r\n\t\t\tvar oldRoute = currentRoute\r\n\t\t\tcurrentRoute = root\r\n\r\n\t\t\tvar args = arg1 || {}\r\n\t\t\tvar queryIndex = currentRoute.indexOf(\"?\")\r\n\t\t\tvar params\r\n\r\n\t\t\tif (queryIndex > -1) {\r\n\t\t\t\tparams = parseQueryString(currentRoute.slice(queryIndex + 1))\r\n\t\t\t} else {\r\n\t\t\t\tparams = {}\r\n\t\t\t}\r\n\r\n\t\t\tfor (var i in args) if (hasOwn.call(args, i)) {\r\n\t\t\t\tparams[i] = args[i]\r\n\t\t\t}\r\n\r\n\t\t\tvar querystring = buildQueryString(params)\r\n\t\t\tvar currentPath\r\n\r\n\t\t\tif (queryIndex > -1) {\r\n\t\t\t\tcurrentPath = currentRoute.slice(0, queryIndex)\r\n\t\t\t} else {\r\n\t\t\t\tcurrentPath = currentRoute\r\n\t\t\t}\r\n\r\n\t\t\tif (querystring) {\r\n\t\t\t\tcurrentRoute = currentPath +\r\n\t\t\t\t\t(currentPath.indexOf(\"?\") === -1 ? \"?\" : \"&\") +\r\n\t\t\t\t\tquerystring\r\n\t\t\t}\r\n\r\n\t\t\tvar replaceHistory =\r\n\t\t\t\t(arguments.length === 3 ? arg2 : arg1) === true ||\r\n\t\t\t\toldRoute === root\r\n\r\n\t\t\tif (global.history.pushState) {\r\n\t\t\t\tvar method = replaceHistory ? \"replaceState\" : \"pushState\"\r\n\t\t\t\tcomputePreRedrawHook = setScroll\r\n\t\t\t\tcomputePostRedrawHook = function () {\r\n\t\t\t\t\tglobal.history[method](null, $document.title,\r\n\t\t\t\t\t\tmodes[m.route.mode] + currentRoute)\r\n\t\t\t\t}\r\n\t\t\t\tredirect(modes[m.route.mode] + currentRoute)\r\n\t\t\t} else {\r\n\t\t\t\t$location[m.route.mode] = currentRoute\r\n\t\t\t\tredirect(modes[m.route.mode] + currentRoute)\r\n\t\t\t}\r\n\t\t}\r\n\t}\r\n\r\n\tm.route.param = function (key) {\r\n\t\tif (!routeParams) {\r\n\t\t\tthrow new Error(\"You must call m.route(element, defaultRoute, \" +\r\n\t\t\t\t\"routes) before calling m.route.param()\")\r\n\t\t}\r\n\r\n\t\tif (!key) {\r\n\t\t\treturn routeParams\r\n\t\t}\r\n\r\n\t\treturn routeParams[key]\r\n\t}\r\n\r\n\tm.route.mode = \"search\"\r\n\r\n\tfunction normalizeRoute(route) {\r\n\t\treturn route.slice(modes[m.route.mode].length)\r\n\t}\r\n\r\n\tfunction routeByValue(root, router, path) {\r\n\t\trouteParams = {}\r\n\r\n\t\tvar queryStart = path.indexOf(\"?\")\r\n\t\tif (queryStart !== -1) {\r\n\t\t\trouteParams = parseQueryString(\r\n\t\t\t\tpath.substr(queryStart + 1, path.length))\r\n\t\t\tpath = path.substr(0, queryStart)\r\n\t\t}\r\n\r\n\t\t// Get all routes and check if there's\r\n\t\t// an exact match for the current path\r\n\t\tvar keys = Object.keys(router)\r\n\t\tvar index = keys.indexOf(path)\r\n\r\n\t\tif (index !== -1){\r\n\t\t\tm.mount(root, router[keys [index]])\r\n\t\t\treturn true\r\n\t\t}\r\n\r\n\t\tfor (var route in router) if (hasOwn.call(router, route)) {\r\n\t\t\tif (route === path) {\r\n\t\t\t\tm.mount(root, router[route])\r\n\t\t\t\treturn true\r\n\t\t\t}\r\n\r\n\t\t\tvar matcher = new RegExp(\"^\" + route\r\n\t\t\t\t.replace(/:[^\\/]+?\\.{3}/g, \"(.*?)\")\r\n\t\t\t\t.replace(/:[^\\/]+/g, \"([^\\\\/]+)\") + \"\\/?$\")\r\n\r\n\t\t\tif (matcher.test(path)) {\r\n\t\t\t\t/* eslint-disable no-loop-func */\r\n\t\t\t\tpath.replace(matcher, function () {\r\n\t\t\t\t\tvar keys = route.match(/:[^\\/]+/g) || []\r\n\t\t\t\t\tvar values = [].slice.call(arguments, 1, -2)\r\n\t\t\t\t\tforEach(keys, function (key, i) {\r\n\t\t\t\t\t\trouteParams[key.replace(/:|\\./g, \"\")] =\r\n\t\t\t\t\t\t\tdecodeURIComponent(values[i])\r\n\t\t\t\t\t})\r\n\t\t\t\t\tm.mount(root, router[route])\r\n\t\t\t\t})\r\n\t\t\t\t/* eslint-enable no-loop-func */\r\n\t\t\t\treturn true\r\n\t\t\t}\r\n\t\t}\r\n\t}\r\n\r\n\tfunction routeUnobtrusive(e) {\r\n\t\te = e || event\r\n\t\tif (e.ctrlKey || e.metaKey || e.shiftKey || e.which === 2) return\r\n\r\n\t\tif (e.preventDefault) {\r\n\t\t\te.preventDefault()\r\n\t\t} else {\r\n\t\t\te.returnValue = false\r\n\t\t}\r\n\r\n\t\tvar currentTarget = e.currentTarget || e.srcElement\r\n\t\tvar args\r\n\r\n\t\tif (m.route.mode === \"pathname\" && currentTarget.search) {\r\n\t\t\targs = parseQueryString(currentTarget.search.slice(1))\r\n\t\t} else {\r\n\t\t\targs = {}\r\n\t\t}\r\n\r\n\t\twhile (currentTarget && !/a/i.test(currentTarget.nodeName)) {\r\n\t\t\tcurrentTarget = currentTarget.parentNode\r\n\t\t}\r\n\r\n\t\t// clear pendingRequests because we want an immediate route change\r\n\t\tpendingRequests = 0\r\n\t\tm.route(currentTarget[m.route.mode]\r\n\t\t\t.slice(modes[m.route.mode].length), args)\r\n\t}\r\n\r\n\tfunction setScroll() {\r\n\t\tif (m.route.mode !== \"hash\" && $location.hash) {\r\n\t\t\t$location.hash = $location.hash\r\n\t\t} else {\r\n\t\t\tglobal.scrollTo(0, 0)\r\n\t\t}\r\n\t}\r\n\r\n\tfunction buildQueryString(object, prefix) {\r\n\t\tvar duplicates = {}\r\n\t\tvar str = []\r\n\r\n\t\tfor (var prop in object) if (hasOwn.call(object, prop)) {\r\n\t\t\tvar key = prefix ? prefix + \"[\" + prop + \"]\" : prop\r\n\t\t\tvar value = object[prop]\r\n\r\n\t\t\tif (value === null) {\r\n\t\t\t\tstr.push(encodeURIComponent(key))\r\n\t\t\t} else if (isObject(value)) {\r\n\t\t\t\tstr.push(buildQueryString(value, key))\r\n\t\t\t} else if (isArray(value)) {\r\n\t\t\t\tvar keys = []\r\n\t\t\t\tduplicates[key] = duplicates[key] || {}\r\n\t\t\t\t/* eslint-disable no-loop-func */\r\n\t\t\t\tforEach(value, function (item) {\r\n\t\t\t\t\t/* eslint-enable no-loop-func */\r\n\t\t\t\t\tif (!duplicates[key][item]) {\r\n\t\t\t\t\t\tduplicates[key][item] = true\r\n\t\t\t\t\t\tkeys.push(encodeURIComponent(key) + \"=\" +\r\n\t\t\t\t\t\t\tencodeURIComponent(item))\r\n\t\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tstr.push(keys.join(\"&\"))\r\n\t\t\t} else if (value !== undefined) {\r\n\t\t\t\tstr.push(encodeURIComponent(key) + \"=\" +\r\n\t\t\t\t\tencodeURIComponent(value))\r\n\t\t\t}\r\n\t\t}\r\n\t\treturn str.join(\"&\")\r\n\t}\r\n\r\n\tfunction parseQueryString(str) {\r\n\t\tif (str === \"\" || str == null) return {}\r\n\t\tif (str.charAt(0) === \"?\") str = str.slice(1)\r\n\r\n\t\tvar pairs = str.split(\"&\")\r\n\t\tvar params = {}\r\n\r\n\t\tforEach(pairs, function (string) {\r\n\t\t\tvar pair = string.split(\"=\")\r\n\t\t\tvar key = decodeURIComponent(pair[0])\r\n\t\t\tvar value = pair.length === 2 ? decodeURIComponent(pair[1]) : null\r\n\t\t\tif (params[key] != null) {\r\n\t\t\t\tif (!isArray(params[key])) params[key] = [params[key]]\r\n\t\t\t\tparams[key].push(value)\r\n\t\t\t}\r\n\t\t\telse params[key] = value\r\n\t\t})\r\n\r\n\t\treturn params\r\n\t}\r\n\r\n\tm.route.buildQueryString = buildQueryString\r\n\tm.route.parseQueryString = parseQueryString\r\n\r\n\tfunction reset(root) {\r\n\t\tvar cacheKey = getCellCacheKey(root)\r\n\t\tclear(root.childNodes, cellCache[cacheKey])\r\n\t\tcellCache[cacheKey] = undefined\r\n\t}\r\n\r\n\tm.deferred = function () {\r\n\t\tvar deferred = new Deferred()\r\n\t\tdeferred.promise = propify(deferred.promise)\r\n\t\treturn deferred\r\n\t}\r\n\r\n\tfunction propify(promise, initialValue) {\r\n\t\tvar prop = m.prop(initialValue)\r\n\t\tpromise.then(prop)\r\n\t\tprop.then = function (resolve, reject) {\r\n\t\t\treturn propify(promise.then(resolve, reject), initialValue)\r\n\t\t}\r\n\r\n\t\tprop.catch = prop.then.bind(null, null)\r\n\t\treturn prop\r\n\t}\r\n\t// Promiz.mithril.js | Zolmeister | MIT\r\n\t// a modified version of Promiz.js, which does not conform to Promises/A+\r\n\t// for two reasons:\r\n\t//\r\n\t// 1) `then` callbacks are called synchronously (because setTimeout is too\r\n\t//    slow, and the setImmediate polyfill is too big\r\n\t//\r\n\t// 2) throwing subclasses of Error cause the error to be bubbled up instead\r\n\t//    of triggering rejection (because the spec does not account for the\r\n\t//    important use case of default browser error handling, i.e. message w/\r\n\t//    line number)\r\n\r\n\tvar RESOLVING = 1\r\n\tvar REJECTING = 2\r\n\tvar RESOLVED = 3\r\n\tvar REJECTED = 4\r\n\r\n\tfunction Deferred(onSuccess, onFailure) {\r\n\t\tvar self = this\r\n\t\tvar state = 0\r\n\t\tvar promiseValue = 0\r\n\t\tvar next = []\r\n\r\n\t\tself.promise = {}\r\n\r\n\t\tself.resolve = function (value) {\r\n\t\t\tif (!state) {\r\n\t\t\t\tpromiseValue = value\r\n\t\t\t\tstate = RESOLVING\r\n\r\n\t\t\t\tfire()\r\n\t\t\t}\r\n\r\n\t\t\treturn self\r\n\t\t}\r\n\r\n\t\tself.reject = function (value) {\r\n\t\t\tif (!state) {\r\n\t\t\t\tpromiseValue = value\r\n\t\t\t\tstate = REJECTING\r\n\r\n\t\t\t\tfire()\r\n\t\t\t}\r\n\r\n\t\t\treturn self\r\n\t\t}\r\n\r\n\t\tself.promise.then = function (onSuccess, onFailure) {\r\n\t\t\tvar deferred = new Deferred(onSuccess, onFailure)\r\n\r\n\t\t\tif (state === RESOLVED) {\r\n\t\t\t\tdeferred.resolve(promiseValue)\r\n\t\t\t} else if (state === REJECTED) {\r\n\t\t\t\tdeferred.reject(promiseValue)\r\n\t\t\t} else {\r\n\t\t\t\tnext.push(deferred)\r\n\t\t\t}\r\n\r\n\t\t\treturn deferred.promise\r\n\t\t}\r\n\r\n\t\tfunction finish(type) {\r\n\t\t\tstate = type || REJECTED\r\n\t\t\tnext.map(function (deferred) {\r\n\t\t\t\tif (state === RESOLVED) {\r\n\t\t\t\t\tdeferred.resolve(promiseValue)\r\n\t\t\t\t} else {\r\n\t\t\t\t\tdeferred.reject(promiseValue)\r\n\t\t\t\t}\r\n\t\t\t})\r\n\t\t}\r\n\r\n\t\tfunction thennable(then, success, failure, notThennable) {\r\n\t\t\tif (((promiseValue != null && isObject(promiseValue)) ||\r\n\t\t\t\t\tisFunction(promiseValue)) && isFunction(then)) {\r\n\t\t\t\ttry {\r\n\t\t\t\t\t// count protects against abuse calls from spec checker\r\n\t\t\t\t\tvar count = 0\r\n\t\t\t\t\tthen.call(promiseValue, function (value) {\r\n\t\t\t\t\t\tif (count++) return\r\n\t\t\t\t\t\tpromiseValue = value\r\n\t\t\t\t\t\tsuccess()\r\n\t\t\t\t\t}, function (value) {\r\n\t\t\t\t\t\tif (count++) return\r\n\t\t\t\t\t\tpromiseValue = value\r\n\t\t\t\t\t\tfailure()\r\n\t\t\t\t\t})\r\n\t\t\t\t} catch (e) {\r\n\t\t\t\t\tm.deferred.onerror(e)\r\n\t\t\t\t\tpromiseValue = e\r\n\t\t\t\t\tfailure()\r\n\t\t\t\t}\r\n\t\t\t} else {\r\n\t\t\t\tnotThennable()\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tfunction fire() {\r\n\t\t\t// check if it's a thenable\r\n\t\t\tvar then\r\n\t\t\ttry {\r\n\t\t\t\tthen = promiseValue && promiseValue.then\r\n\t\t\t} catch (e) {\r\n\t\t\t\tm.deferred.onerror(e)\r\n\t\t\t\tpromiseValue = e\r\n\t\t\t\tstate = REJECTING\r\n\t\t\t\treturn fire()\r\n\t\t\t}\r\n\r\n\t\t\tif (state === REJECTING) {\r\n\t\t\t\tm.deferred.onerror(promiseValue)\r\n\t\t\t}\r\n\r\n\t\t\tthennable(then, function () {\r\n\t\t\t\tstate = RESOLVING\r\n\t\t\t\tfire()\r\n\t\t\t}, function () {\r\n\t\t\t\tstate = REJECTING\r\n\t\t\t\tfire()\r\n\t\t\t}, function () {\r\n\t\t\t\ttry {\r\n\t\t\t\t\tif (state === RESOLVING && isFunction(onSuccess)) {\r\n\t\t\t\t\t\tpromiseValue = onSuccess(promiseValue)\r\n\t\t\t\t\t} else if (state === REJECTING && isFunction(onFailure)) {\r\n\t\t\t\t\t\tpromiseValue = onFailure(promiseValue)\r\n\t\t\t\t\t\tstate = RESOLVING\r\n\t\t\t\t\t}\r\n\t\t\t\t} catch (e) {\r\n\t\t\t\t\tm.deferred.onerror(e)\r\n\t\t\t\t\tpromiseValue = e\r\n\t\t\t\t\treturn finish()\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif (promiseValue === self) {\r\n\t\t\t\t\tpromiseValue = TypeError()\r\n\t\t\t\t\tfinish()\r\n\t\t\t\t} else {\r\n\t\t\t\t\tthennable(then, function () {\r\n\t\t\t\t\t\tfinish(RESOLVED)\r\n\t\t\t\t\t}, finish, function () {\r\n\t\t\t\t\t\tfinish(state === RESOLVING && RESOLVED)\r\n\t\t\t\t\t})\r\n\t\t\t\t}\r\n\t\t\t})\r\n\t\t}\r\n\t}\r\n\r\n\tm.deferred.onerror = function (e) {\r\n\t\tif (type.call(e) === \"[object Error]\" &&\r\n\t\t\t\t!/ Error/.test(e.constructor.toString())) {\r\n\t\t\tpendingRequests = 0\r\n\t\t\tthrow e\r\n\t\t}\r\n\t}\r\n\r\n\tm.sync = function (args) {\r\n\t\tvar deferred = m.deferred()\r\n\t\tvar outstanding = args.length\r\n\t\tvar results = new Array(outstanding)\r\n\t\tvar method = \"resolve\"\r\n\r\n\t\tfunction synchronizer(pos, resolved) {\r\n\t\t\treturn function (value) {\r\n\t\t\t\tresults[pos] = value\r\n\t\t\t\tif (!resolved) method = \"reject\"\r\n\t\t\t\tif (--outstanding === 0) {\r\n\t\t\t\t\tdeferred.promise(results)\r\n\t\t\t\t\tdeferred[method](results)\r\n\t\t\t\t}\r\n\t\t\t\treturn value\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tif (args.length > 0) {\r\n\t\t\tforEach(args, function (arg, i) {\r\n\t\t\t\targ.then(synchronizer(i, true), synchronizer(i, false))\r\n\t\t\t})\r\n\t\t} else {\r\n\t\t\tdeferred.resolve([])\r\n\t\t}\r\n\r\n\t\treturn deferred.promise\r\n\t}\r\n\r\n\tfunction identity(value) { return value }\r\n\r\n\tfunction handleJsonp(options) {\r\n\t\tvar callbackKey = \"mithril_callback_\" +\r\n\t\t\tnew Date().getTime() + \"_\" +\r\n\t\t\t(Math.round(Math.random() * 1e16)).toString(36)\r\n\r\n\t\tvar script = $document.createElement(\"script\")\r\n\r\n\t\tglobal[callbackKey] = function (resp) {\r\n\t\t\tscript.parentNode.removeChild(script)\r\n\t\t\toptions.onload({\r\n\t\t\t\ttype: \"load\",\r\n\t\t\t\ttarget: {\r\n\t\t\t\t\tresponseText: resp\r\n\t\t\t\t}\r\n\t\t\t})\r\n\t\t\tglobal[callbackKey] = undefined\r\n\t\t}\r\n\r\n\t\tscript.onerror = function () {\r\n\t\t\tscript.parentNode.removeChild(script)\r\n\r\n\t\t\toptions.onerror({\r\n\t\t\t\ttype: \"error\",\r\n\t\t\t\ttarget: {\r\n\t\t\t\t\tstatus: 500,\r\n\t\t\t\t\tresponseText: JSON.stringify({\r\n\t\t\t\t\t\terror: \"Error making jsonp request\"\r\n\t\t\t\t\t})\r\n\t\t\t\t}\r\n\t\t\t})\r\n\t\t\tglobal[callbackKey] = undefined\r\n\r\n\t\t\treturn false\r\n\t\t}\r\n\r\n\t\tscript.onload = function () {\r\n\t\t\treturn false\r\n\t\t}\r\n\r\n\t\tscript.src = options.url +\r\n\t\t\t(options.url.indexOf(\"?\") > 0 ? \"&\" : \"?\") +\r\n\t\t\t(options.callbackKey ? options.callbackKey : \"callback\") +\r\n\t\t\t\"=\" + callbackKey +\r\n\t\t\t\"&\" + buildQueryString(options.data || {})\r\n\r\n\t\t$document.body.appendChild(script)\r\n\t}\r\n\r\n\tfunction createXhr(options) {\r\n\t\tvar xhr = new global.XMLHttpRequest()\r\n\t\txhr.open(options.method, options.url, true, options.user,\r\n\t\t\toptions.password)\r\n\r\n\t\txhr.onreadystatechange = function () {\r\n\t\t\tif (xhr.readyState === 4) {\r\n\t\t\t\tif (xhr.status >= 200 && xhr.status < 300) {\r\n\t\t\t\t\toptions.onload({type: \"load\", target: xhr})\r\n\t\t\t\t} else {\r\n\t\t\t\t\toptions.onerror({type: \"error\", target: xhr})\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tif (options.serialize === JSON.stringify &&\r\n\t\t\t\toptions.data &&\r\n\t\t\t\toptions.method !== \"GET\") {\r\n\t\t\txhr.setRequestHeader(\"Content-Type\",\r\n\t\t\t\t\"application/json; charset=utf-8\")\r\n\t\t}\r\n\r\n\t\tif (options.deserialize === JSON.parse) {\r\n\t\t\txhr.setRequestHeader(\"Accept\", \"application/json, text/*\")\r\n\t\t}\r\n\r\n\t\tif (isFunction(options.config)) {\r\n\t\t\tvar maybeXhr = options.config(xhr, options)\r\n\t\t\tif (maybeXhr != null) xhr = maybeXhr\r\n\t\t}\r\n\r\n\t\tvar data = options.method === \"GET\" || !options.data ? \"\" : options.data\r\n\r\n\t\tif (data && !isString(data) && data.constructor !== global.FormData) {\r\n\t\t\tthrow new Error(\"Request data should be either be a string or \" +\r\n\t\t\t\t\"FormData. Check the `serialize` option in `m.request`\")\r\n\t\t}\r\n\r\n\t\txhr.send(data)\r\n\t\treturn xhr\r\n\t}\r\n\r\n\tfunction ajax(options) {\r\n\t\tif (options.dataType && options.dataType.toLowerCase() === \"jsonp\") {\r\n\t\t\treturn handleJsonp(options)\r\n\t\t} else {\r\n\t\t\treturn createXhr(options)\r\n\t\t}\r\n\t}\r\n\r\n\tfunction bindData(options, data, serialize) {\r\n\t\tif (options.method === \"GET\" && options.dataType !== \"jsonp\") {\r\n\t\t\tvar prefix = options.url.indexOf(\"?\") < 0 ? \"?\" : \"&\"\r\n\t\t\tvar querystring = buildQueryString(data)\r\n\t\t\toptions.url += (querystring ? prefix + querystring : \"\")\r\n\t\t} else {\r\n\t\t\toptions.data = serialize(data)\r\n\t\t}\r\n\t}\r\n\r\n\tfunction parameterizeUrl(url, data) {\r\n\t\tif (data) {\r\n\t\t\turl = url.replace(/:[a-z]\\w+/gi, function(token){\r\n\t\t\t\tvar key = token.slice(1)\r\n\t\t\t\tvar value = data[key]\r\n\t\t\t\tdelete data[key]\r\n\t\t\t\treturn value\r\n\t\t\t})\r\n\t\t}\r\n\t\treturn url\r\n\t}\r\n\r\n\tm.request = function (options) {\r\n\t\tif (options.background !== true) m.startComputation()\r\n\t\tvar deferred = new Deferred()\r\n\t\tvar isJSONP = options.dataType &&\r\n\t\t\toptions.dataType.toLowerCase() === \"jsonp\"\r\n\r\n\t\tvar serialize, deserialize, extract\r\n\r\n\t\tif (isJSONP) {\r\n\t\t\tserialize = options.serialize =\r\n\t\t\tdeserialize = options.deserialize = identity\r\n\r\n\t\t\textract = function (jsonp) { return jsonp.responseText }\r\n\t\t} else {\r\n\t\t\tserialize = options.serialize = options.serialize || JSON.stringify\r\n\r\n\t\t\tdeserialize = options.deserialize =\r\n\t\t\t\toptions.deserialize || JSON.parse\r\n\t\t\textract = options.extract || function (xhr) {\r\n\t\t\t\tif (xhr.responseText.length || deserialize !== JSON.parse) {\r\n\t\t\t\t\treturn xhr.responseText\r\n\t\t\t\t} else {\r\n\t\t\t\t\treturn null\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\toptions.method = (options.method || \"GET\").toUpperCase()\r\n\t\toptions.url = parameterizeUrl(options.url, options.data)\r\n\t\tbindData(options, options.data, serialize)\r\n\t\toptions.onload = options.onerror = function (ev) {\r\n\t\t\ttry {\r\n\t\t\t\tev = ev || event\r\n\t\t\t\tvar response = deserialize(extract(ev.target, options))\r\n\t\t\t\tif (ev.type === \"load\") {\r\n\t\t\t\t\tif (options.unwrapSuccess) {\r\n\t\t\t\t\t\tresponse = options.unwrapSuccess(response, ev.target)\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\tif (isArray(response) && options.type) {\r\n\t\t\t\t\t\tforEach(response, function (res, i) {\r\n\t\t\t\t\t\t\tresponse[i] = new options.type(res)\r\n\t\t\t\t\t\t})\r\n\t\t\t\t\t} else if (options.type) {\r\n\t\t\t\t\t\tresponse = new options.type(response)\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\tdeferred.resolve(response)\r\n\t\t\t\t} else {\r\n\t\t\t\t\tif (options.unwrapError) {\r\n\t\t\t\t\t\tresponse = options.unwrapError(response, ev.target)\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\tdeferred.reject(response)\r\n\t\t\t\t}\r\n\t\t\t} catch (e) {\r\n\t\t\t\tdeferred.reject(e)\r\n\t\t\t} finally {\r\n\t\t\t\tif (options.background !== true) m.endComputation()\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tajax(options)\r\n\t\tdeferred.promise = propify(deferred.promise, options.initialValue)\r\n\t\treturn deferred.promise\r\n\t}\r\n\r\n\treturn m\r\n})\r\n","/**\n * Helpers.\n */\n\nvar s = 1000;\nvar m = s * 60;\nvar h = m * 60;\nvar d = h * 24;\nvar y = d * 365.25;\n\n/**\n * Parse or format the given `val`.\n *\n * Options:\n *\n *  - `long` verbose formatting [false]\n *\n * @param {String|Number} val\n * @param {Object} options\n * @return {String|Number}\n * @api public\n */\n\nmodule.exports = function(val, options){\n  options = options || {};\n  if ('string' == typeof val) return parse(val);\n  return options.long\n    ? long(val)\n    : short(val);\n};\n\n/**\n * Parse the given `str` and return milliseconds.\n *\n * @param {String} str\n * @return {Number}\n * @api private\n */\n\nfunction parse(str) {\n  str = '' + str;\n  if (str.length > 10000) return;\n  var match = /^((?:\\d+)?\\.?\\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec(str);\n  if (!match) return;\n  var n = parseFloat(match[1]);\n  var type = (match[2] || 'ms').toLowerCase();\n  switch (type) {\n    case 'years':\n    case 'year':\n    case 'yrs':\n    case 'yr':\n    case 'y':\n      return n * y;\n    case 'days':\n    case 'day':\n    case 'd':\n      return n * d;\n    case 'hours':\n    case 'hour':\n    case 'hrs':\n    case 'hr':\n    case 'h':\n      return n * h;\n    case 'minutes':\n    case 'minute':\n    case 'mins':\n    case 'min':\n    case 'm':\n      return n * m;\n    case 'seconds':\n    case 'second':\n    case 'secs':\n    case 'sec':\n    case 's':\n      return n * s;\n    case 'milliseconds':\n    case 'millisecond':\n    case 'msecs':\n    case 'msec':\n    case 'ms':\n      return n;\n  }\n}\n\n/**\n * Short format for `ms`.\n *\n * @param {Number} ms\n * @return {String}\n * @api private\n */\n\nfunction short(ms) {\n  if (ms >= d) return Math.round(ms / d) + 'd';\n  if (ms >= h) return Math.round(ms / h) + 'h';\n  if (ms >= m) return Math.round(ms / m) + 'm';\n  if (ms >= s) return Math.round(ms / s) + 's';\n  return ms + 'ms';\n}\n\n/**\n * Long format for `ms`.\n *\n * @param {Number} ms\n * @return {String}\n * @api private\n */\n\nfunction long(ms) {\n  return plural(ms, d, 'day')\n    || plural(ms, h, 'hour')\n    || plural(ms, m, 'minute')\n    || plural(ms, s, 'second')\n    || ms + ' ms';\n}\n\n/**\n * Pluralization helper.\n */\n\nfunction plural(ms, n, name) {\n  if (ms < n) return;\n  if (ms < n * 1.5) return Math.floor(ms / n) + ' ' + name;\n  return Math.ceil(ms / n) + ' ' + name + 's';\n}\n","/**\n * JSON parse.\n *\n * @see Based on jQuery#parseJSON (MIT) and JSON2\n * @api private\n */\n\nvar rvalidchars = /^[\\],:{}\\s]*$/;\nvar rvalidescape = /\\\\(?:[\"\\\\\\/bfnrt]|u[0-9a-fA-F]{4})/g;\nvar rvalidtokens = /\"[^\"\\\\\\n\\r]*\"|true|false|null|-?\\d+(?:\\.\\d*)?(?:[eE][+\\-]?\\d+)?/g;\nvar rvalidbraces = /(?:^|:|,)(?:\\s*\\[)+/g;\nvar rtrimLeft = /^\\s+/;\nvar rtrimRight = /\\s+$/;\n\nmodule.exports = function parsejson(data) {\n  if ('string' != typeof data || !data) {\n    return null;\n  }\n\n  data = data.replace(rtrimLeft, '').replace(rtrimRight, '');\n\n  // Attempt to parse using the native JSON parser first\n  if (global.JSON && JSON.parse) {\n    return JSON.parse(data);\n  }\n\n  if (rvalidchars.test(data.replace(rvalidescape, '@')\n      .replace(rvalidtokens, ']')\n      .replace(rvalidbraces, ''))) {\n    return (new Function('return ' + data))();\n  }\n};","/**\n * Compiles a querystring\n * Returns string representation of the object\n *\n * @param {Object}\n * @api private\n */\n\nexports.encode = function (obj) {\n  var str = '';\n\n  for (var i in obj) {\n    if (obj.hasOwnProperty(i)) {\n      if (str.length) str += '&';\n      str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\n    }\n  }\n\n  return str;\n};\n\n/**\n * Parses a simple querystring into an object\n *\n * @param {String} qs\n * @api private\n */\n\nexports.decode = function(qs){\n  var qry = {};\n  var pairs = qs.split('&');\n  for (var i = 0, l = pairs.length; i < l; i++) {\n    var pair = pairs[i].split('=');\n    qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\n  }\n  return qry;\n};\n","/**\n * Parses an URI\n *\n * @author Steven Levithan <stevenlevithan.com> (MIT license)\n * @api private\n */\n\nvar re = /^(?:(?![^:@]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\n\nvar parts = [\n    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\n];\n\nmodule.exports = function parseuri(str) {\n    var src = str,\n        b = str.indexOf('['),\n        e = str.indexOf(']');\n\n    if (b != -1 && e != -1) {\n        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\n    }\n\n    var m = re.exec(str || ''),\n        uri = {},\n        i = 14;\n\n    while (i--) {\n        uri[parts[i]] = m[i] || '';\n    }\n\n    if (b != -1 && e != -1) {\n        uri.source = src;\n        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\n        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\n        uri.ipv6uri = true;\n    }\n\n    return uri;\n};\n","\n/**\n * Module dependencies.\n */\n\nvar url = require('./url');\nvar parser = require('socket.io-parser');\nvar Manager = require('./manager');\nvar debug = require('debug')('socket.io-client');\n\n/**\n * Module exports.\n */\n\nmodule.exports = exports = lookup;\n\n/**\n * Managers cache.\n */\n\nvar cache = exports.managers = {};\n\n/**\n * Looks up an existing `Manager` for multiplexing.\n * If the user summons:\n *\n *   `io('http://localhost/a');`\n *   `io('http://localhost/b');`\n *\n * We reuse the existing instance based on same scheme/port/host,\n * and we initialize sockets for each namespace.\n *\n * @api public\n */\n\nfunction lookup(uri, opts) {\n  if (typeof uri == 'object') {\n    opts = uri;\n    uri = undefined;\n  }\n\n  opts = opts || {};\n\n  var parsed = url(uri);\n  var source = parsed.source;\n  var id = parsed.id;\n  var path = parsed.path;\n  var sameNamespace = cache[id] && path in cache[id].nsps;\n  var newConnection = opts.forceNew || opts['force new connection'] ||\n                      false === opts.multiplex || sameNamespace;\n\n  var io;\n\n  if (newConnection) {\n    debug('ignoring socket cache for %s', source);\n    io = Manager(source, opts);\n  } else {\n    if (!cache[id]) {\n      debug('new io instance for %s', source);\n      cache[id] = Manager(source, opts);\n    }\n    io = cache[id];\n  }\n\n  return io.socket(parsed.path);\n}\n\n/**\n * Protocol version.\n *\n * @api public\n */\n\nexports.protocol = parser.protocol;\n\n/**\n * `connect`.\n *\n * @param {String} uri\n * @api public\n */\n\nexports.connect = lookup;\n\n/**\n * Expose constructors for standalone build.\n *\n * @api public\n */\n\nexports.Manager = require('./manager');\nexports.Socket = require('./socket');\n","\n/**\n * Module dependencies.\n */\n\nvar eio = require('engine.io-client');\nvar Socket = require('./socket');\nvar Emitter = require('component-emitter');\nvar parser = require('socket.io-parser');\nvar on = require('./on');\nvar bind = require('component-bind');\nvar debug = require('debug')('socket.io-client:manager');\nvar indexOf = require('indexof');\nvar Backoff = require('backo2');\n\n/**\n * IE6+ hasOwnProperty\n */\n\nvar has = Object.prototype.hasOwnProperty;\n\n/**\n * Module exports\n */\n\nmodule.exports = Manager;\n\n/**\n * `Manager` constructor.\n *\n * @param {String} engine instance or engine uri/opts\n * @param {Object} options\n * @api public\n */\n\nfunction Manager(uri, opts){\n  if (!(this instanceof Manager)) return new Manager(uri, opts);\n  if (uri && ('object' == typeof uri)) {\n    opts = uri;\n    uri = undefined;\n  }\n  opts = opts || {};\n\n  opts.path = opts.path || '/socket.io';\n  this.nsps = {};\n  this.subs = [];\n  this.opts = opts;\n  this.reconnection(opts.reconnection !== false);\n  this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n  this.reconnectionDelay(opts.reconnectionDelay || 1000);\n  this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n  this.randomizationFactor(opts.randomizationFactor || 0.5);\n  this.backoff = new Backoff({\n    min: this.reconnectionDelay(),\n    max: this.reconnectionDelayMax(),\n    jitter: this.randomizationFactor()\n  });\n  this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n  this.readyState = 'closed';\n  this.uri = uri;\n  this.connecting = [];\n  this.lastPing = null;\n  this.encoding = false;\n  this.packetBuffer = [];\n  this.encoder = new parser.Encoder();\n  this.decoder = new parser.Decoder();\n  this.autoConnect = opts.autoConnect !== false;\n  if (this.autoConnect) this.open();\n}\n\n/**\n * Propagate given event to sockets and emit on `this`\n *\n * @api private\n */\n\nManager.prototype.emitAll = function() {\n  this.emit.apply(this, arguments);\n  for (var nsp in this.nsps) {\n    if (has.call(this.nsps, nsp)) {\n      this.nsps[nsp].emit.apply(this.nsps[nsp], arguments);\n    }\n  }\n};\n\n/**\n * Update `socket.id` of all sockets\n *\n * @api private\n */\n\nManager.prototype.updateSocketIds = function(){\n  for (var nsp in this.nsps) {\n    if (has.call(this.nsps, nsp)) {\n      this.nsps[nsp].id = this.engine.id;\n    }\n  }\n};\n\n/**\n * Mix in `Emitter`.\n */\n\nEmitter(Manager.prototype);\n\n/**\n * Sets the `reconnection` config.\n *\n * @param {Boolean} true/false if it should automatically reconnect\n * @return {Manager} self or value\n * @api public\n */\n\nManager.prototype.reconnection = function(v){\n  if (!arguments.length) return this._reconnection;\n  this._reconnection = !!v;\n  return this;\n};\n\n/**\n * Sets the reconnection attempts config.\n *\n * @param {Number} max reconnection attempts before giving up\n * @return {Manager} self or value\n * @api public\n */\n\nManager.prototype.reconnectionAttempts = function(v){\n  if (!arguments.length) return this._reconnectionAttempts;\n  this._reconnectionAttempts = v;\n  return this;\n};\n\n/**\n * Sets the delay between reconnections.\n *\n * @param {Number} delay\n * @return {Manager} self or value\n * @api public\n */\n\nManager.prototype.reconnectionDelay = function(v){\n  if (!arguments.length) return this._reconnectionDelay;\n  this._reconnectionDelay = v;\n  this.backoff && this.backoff.setMin(v);\n  return this;\n};\n\nManager.prototype.randomizationFactor = function(v){\n  if (!arguments.length) return this._randomizationFactor;\n  this._randomizationFactor = v;\n  this.backoff && this.backoff.setJitter(v);\n  return this;\n};\n\n/**\n * Sets the maximum delay between reconnections.\n *\n * @param {Number} delay\n * @return {Manager} self or value\n * @api public\n */\n\nManager.prototype.reconnectionDelayMax = function(v){\n  if (!arguments.length) return this._reconnectionDelayMax;\n  this._reconnectionDelayMax = v;\n  this.backoff && this.backoff.setMax(v);\n  return this;\n};\n\n/**\n * Sets the connection timeout. `false` to disable\n *\n * @return {Manager} self or value\n * @api public\n */\n\nManager.prototype.timeout = function(v){\n  if (!arguments.length) return this._timeout;\n  this._timeout = v;\n  return this;\n};\n\n/**\n * Starts trying to reconnect if reconnection is enabled and we have not\n * started reconnecting yet\n *\n * @api private\n */\n\nManager.prototype.maybeReconnectOnOpen = function() {\n  // Only try to reconnect if it's the first time we're connecting\n  if (!this.reconnecting && this._reconnection && this.backoff.attempts === 0) {\n    // keeps reconnection from firing twice for the same reconnection loop\n    this.reconnect();\n  }\n};\n\n\n/**\n * Sets the current transport `socket`.\n *\n * @param {Function} optional, callback\n * @return {Manager} self\n * @api public\n */\n\nManager.prototype.open =\nManager.prototype.connect = function(fn){\n  debug('readyState %s', this.readyState);\n  if (~this.readyState.indexOf('open')) return this;\n\n  debug('opening %s', this.uri);\n  this.engine = eio(this.uri, this.opts);\n  var socket = this.engine;\n  var self = this;\n  this.readyState = 'opening';\n  this.skipReconnect = false;\n\n  // emit `open`\n  var openSub = on(socket, 'open', function() {\n    self.onopen();\n    fn && fn();\n  });\n\n  // emit `connect_error`\n  var errorSub = on(socket, 'error', function(data){\n    debug('connect_error');\n    self.cleanup();\n    self.readyState = 'closed';\n    self.emitAll('connect_error', data);\n    if (fn) {\n      var err = new Error('Connection error');\n      err.data = data;\n      fn(err);\n    } else {\n      // Only do this if there is no fn to handle the error\n      self.maybeReconnectOnOpen();\n    }\n  });\n\n  // emit `connect_timeout`\n  if (false !== this._timeout) {\n    var timeout = this._timeout;\n    debug('connect attempt will timeout after %d', timeout);\n\n    // set timer\n    var timer = setTimeout(function(){\n      debug('connect attempt timed out after %d', timeout);\n      openSub.destroy();\n      socket.close();\n      socket.emit('error', 'timeout');\n      self.emitAll('connect_timeout', timeout);\n    }, timeout);\n\n    this.subs.push({\n      destroy: function(){\n        clearTimeout(timer);\n      }\n    });\n  }\n\n  this.subs.push(openSub);\n  this.subs.push(errorSub);\n\n  return this;\n};\n\n/**\n * Called upon transport open.\n *\n * @api private\n */\n\nManager.prototype.onopen = function(){\n  debug('open');\n\n  // clear old subs\n  this.cleanup();\n\n  // mark as open\n  this.readyState = 'open';\n  this.emit('open');\n\n  // add new subs\n  var socket = this.engine;\n  this.subs.push(on(socket, 'data', bind(this, 'ondata')));\n  this.subs.push(on(socket, 'ping', bind(this, 'onping')));\n  this.subs.push(on(socket, 'pong', bind(this, 'onpong')));\n  this.subs.push(on(socket, 'error', bind(this, 'onerror')));\n  this.subs.push(on(socket, 'close', bind(this, 'onclose')));\n  this.subs.push(on(this.decoder, 'decoded', bind(this, 'ondecoded')));\n};\n\n/**\n * Called upon a ping.\n *\n * @api private\n */\n\nManager.prototype.onping = function(){\n  this.lastPing = new Date;\n  this.emitAll('ping');\n};\n\n/**\n * Called upon a packet.\n *\n * @api private\n */\n\nManager.prototype.onpong = function(){\n  this.emitAll('pong', new Date - this.lastPing);\n};\n\n/**\n * Called with data.\n *\n * @api private\n */\n\nManager.prototype.ondata = function(data){\n  this.decoder.add(data);\n};\n\n/**\n * Called when parser fully decodes a packet.\n *\n * @api private\n */\n\nManager.prototype.ondecoded = function(packet) {\n  this.emit('packet', packet);\n};\n\n/**\n * Called upon socket error.\n *\n * @api private\n */\n\nManager.prototype.onerror = function(err){\n  debug('error', err);\n  this.emitAll('error', err);\n};\n\n/**\n * Creates a new socket for the given `nsp`.\n *\n * @return {Socket}\n * @api public\n */\n\nManager.prototype.socket = function(nsp){\n  var socket = this.nsps[nsp];\n  if (!socket) {\n    socket = new Socket(this, nsp);\n    this.nsps[nsp] = socket;\n    var self = this;\n    socket.on('connecting', onConnecting);\n    socket.on('connect', function(){\n      socket.id = self.engine.id;\n    });\n\n    if (this.autoConnect) {\n      // manually call here since connecting evnet is fired before listening\n      onConnecting();\n    }\n  }\n\n  function onConnecting() {\n    if (!~indexOf(self.connecting, socket)) {\n      self.connecting.push(socket);\n    }\n  }\n\n  return socket;\n};\n\n/**\n * Called upon a socket close.\n *\n * @param {Socket} socket\n */\n\nManager.prototype.destroy = function(socket){\n  var index = indexOf(this.connecting, socket);\n  if (~index) this.connecting.splice(index, 1);\n  if (this.connecting.length) return;\n\n  this.close();\n};\n\n/**\n * Writes a packet.\n *\n * @param {Object} packet\n * @api private\n */\n\nManager.prototype.packet = function(packet){\n  debug('writing packet %j', packet);\n  var self = this;\n\n  if (!self.encoding) {\n    // encode, then write to engine with result\n    self.encoding = true;\n    this.encoder.encode(packet, function(encodedPackets) {\n      for (var i = 0; i < encodedPackets.length; i++) {\n        self.engine.write(encodedPackets[i], packet.options);\n      }\n      self.encoding = false;\n      self.processPacketQueue();\n    });\n  } else { // add packet to the queue\n    self.packetBuffer.push(packet);\n  }\n};\n\n/**\n * If packet buffer is non-empty, begins encoding the\n * next packet in line.\n *\n * @api private\n */\n\nManager.prototype.processPacketQueue = function() {\n  if (this.packetBuffer.length > 0 && !this.encoding) {\n    var pack = this.packetBuffer.shift();\n    this.packet(pack);\n  }\n};\n\n/**\n * Clean up transport subscriptions and packet buffer.\n *\n * @api private\n */\n\nManager.prototype.cleanup = function(){\n  debug('cleanup');\n\n  var sub;\n  while (sub = this.subs.shift()) sub.destroy();\n\n  this.packetBuffer = [];\n  this.encoding = false;\n  this.lastPing = null;\n\n  this.decoder.destroy();\n};\n\n/**\n * Close the current socket.\n *\n * @api private\n */\n\nManager.prototype.close =\nManager.prototype.disconnect = function(){\n  debug('disconnect');\n  this.skipReconnect = true;\n  this.reconnecting = false;\n  if ('opening' == this.readyState) {\n    // `onclose` will not fire because\n    // an open event never happened\n    this.cleanup();\n  }\n  this.backoff.reset();\n  this.readyState = 'closed';\n  if (this.engine) this.engine.close();\n};\n\n/**\n * Called upon engine close.\n *\n * @api private\n */\n\nManager.prototype.onclose = function(reason){\n  debug('onclose');\n\n  this.cleanup();\n  this.backoff.reset();\n  this.readyState = 'closed';\n  this.emit('close', reason);\n\n  if (this._reconnection && !this.skipReconnect) {\n    this.reconnect();\n  }\n};\n\n/**\n * Attempt a reconnection.\n *\n * @api private\n */\n\nManager.prototype.reconnect = function(){\n  if (this.reconnecting || this.skipReconnect) return this;\n\n  var self = this;\n\n  if (this.backoff.attempts >= this._reconnectionAttempts) {\n    debug('reconnect failed');\n    this.backoff.reset();\n    this.emitAll('reconnect_failed');\n    this.reconnecting = false;\n  } else {\n    var delay = this.backoff.duration();\n    debug('will wait %dms before reconnect attempt', delay);\n\n    this.reconnecting = true;\n    var timer = setTimeout(function(){\n      if (self.skipReconnect) return;\n\n      debug('attempting reconnect');\n      self.emitAll('reconnect_attempt', self.backoff.attempts);\n      self.emitAll('reconnecting', self.backoff.attempts);\n\n      // check again for the case socket closed in above events\n      if (self.skipReconnect) return;\n\n      self.open(function(err){\n        if (err) {\n          debug('reconnect attempt error');\n          self.reconnecting = false;\n          self.reconnect();\n          self.emitAll('reconnect_error', err.data);\n        } else {\n          debug('reconnect success');\n          self.onreconnect();\n        }\n      });\n    }, delay);\n\n    this.subs.push({\n      destroy: function(){\n        clearTimeout(timer);\n      }\n    });\n  }\n};\n\n/**\n * Called upon successful reconnect.\n *\n * @api private\n */\n\nManager.prototype.onreconnect = function(){\n  var attempt = this.backoff.attempts;\n  this.reconnecting = false;\n  this.backoff.reset();\n  this.updateSocketIds();\n  this.emitAll('reconnect', attempt);\n};\n","\n/**\n * Module exports.\n */\n\nmodule.exports = on;\n\n/**\n * Helper for subscriptions.\n *\n * @param {Object|EventEmitter} obj with `Emitter` mixin or `EventEmitter`\n * @param {String} event name\n * @param {Function} callback\n * @api public\n */\n\nfunction on(obj, ev, fn) {\n  obj.on(ev, fn);\n  return {\n    destroy: function(){\n      obj.removeListener(ev, fn);\n    }\n  };\n}\n","\n/**\n * Module dependencies.\n */\n\nvar parser = require('socket.io-parser');\nvar Emitter = require('component-emitter');\nvar toArray = require('to-array');\nvar on = require('./on');\nvar bind = require('component-bind');\nvar debug = require('debug')('socket.io-client:socket');\nvar hasBin = require('has-binary');\n\n/**\n * Module exports.\n */\n\nmodule.exports = exports = Socket;\n\n/**\n * Internal events (blacklisted).\n * These events can't be emitted by the user.\n *\n * @api private\n */\n\nvar events = {\n  connect: 1,\n  connect_error: 1,\n  connect_timeout: 1,\n  connecting: 1,\n  disconnect: 1,\n  error: 1,\n  reconnect: 1,\n  reconnect_attempt: 1,\n  reconnect_failed: 1,\n  reconnect_error: 1,\n  reconnecting: 1,\n  ping: 1,\n  pong: 1\n};\n\n/**\n * Shortcut to `Emitter#emit`.\n */\n\nvar emit = Emitter.prototype.emit;\n\n/**\n * `Socket` constructor.\n *\n * @api public\n */\n\nfunction Socket(io, nsp){\n  this.io = io;\n  this.nsp = nsp;\n  this.json = this; // compat\n  this.ids = 0;\n  this.acks = {};\n  this.receiveBuffer = [];\n  this.sendBuffer = [];\n  this.connected = false;\n  this.disconnected = true;\n  if (this.io.autoConnect) this.open();\n}\n\n/**\n * Mix in `Emitter`.\n */\n\nEmitter(Socket.prototype);\n\n/**\n * Subscribe to open, close and packet events\n *\n * @api private\n */\n\nSocket.prototype.subEvents = function() {\n  if (this.subs) return;\n\n  var io = this.io;\n  this.subs = [\n    on(io, 'open', bind(this, 'onopen')),\n    on(io, 'packet', bind(this, 'onpacket')),\n    on(io, 'close', bind(this, 'onclose'))\n  ];\n};\n\n/**\n * \"Opens\" the socket.\n *\n * @api public\n */\n\nSocket.prototype.open =\nSocket.prototype.connect = function(){\n  if (this.connected) return this;\n\n  this.subEvents();\n  this.io.open(); // ensure open\n  if ('open' == this.io.readyState) this.onopen();\n  this.emit('connecting');\n  return this;\n};\n\n/**\n * Sends a `message` event.\n *\n * @return {Socket} self\n * @api public\n */\n\nSocket.prototype.send = function(){\n  var args = toArray(arguments);\n  args.unshift('message');\n  this.emit.apply(this, args);\n  return this;\n};\n\n/**\n * Override `emit`.\n * If the event is in `events`, it's emitted normally.\n *\n * @param {String} event name\n * @return {Socket} self\n * @api public\n */\n\nSocket.prototype.emit = function(ev){\n  if (events.hasOwnProperty(ev)) {\n    emit.apply(this, arguments);\n    return this;\n  }\n\n  var args = toArray(arguments);\n  var parserType = parser.EVENT; // default\n  if (hasBin(args)) { parserType = parser.BINARY_EVENT; } // binary\n  var packet = { type: parserType, data: args };\n\n  packet.options = {};\n  packet.options.compress = !this.flags || false !== this.flags.compress;\n\n  // event ack callback\n  if ('function' == typeof args[args.length - 1]) {\n    debug('emitting packet with ack id %d', this.ids);\n    this.acks[this.ids] = args.pop();\n    packet.id = this.ids++;\n  }\n\n  if (this.connected) {\n    this.packet(packet);\n  } else {\n    this.sendBuffer.push(packet);\n  }\n\n  delete this.flags;\n\n  return this;\n};\n\n/**\n * Sends a packet.\n *\n * @param {Object} packet\n * @api private\n */\n\nSocket.prototype.packet = function(packet){\n  packet.nsp = this.nsp;\n  this.io.packet(packet);\n};\n\n/**\n * Called upon engine `open`.\n *\n * @api private\n */\n\nSocket.prototype.onopen = function(){\n  debug('transport is open - connecting');\n\n  // write connect packet if necessary\n  if ('/' != this.nsp) {\n    this.packet({ type: parser.CONNECT });\n  }\n};\n\n/**\n * Called upon engine `close`.\n *\n * @param {String} reason\n * @api private\n */\n\nSocket.prototype.onclose = function(reason){\n  debug('close (%s)', reason);\n  this.connected = false;\n  this.disconnected = true;\n  delete this.id;\n  this.emit('disconnect', reason);\n};\n\n/**\n * Called with socket packet.\n *\n * @param {Object} packet\n * @api private\n */\n\nSocket.prototype.onpacket = function(packet){\n  if (packet.nsp != this.nsp) return;\n\n  switch (packet.type) {\n    case parser.CONNECT:\n      this.onconnect();\n      break;\n\n    case parser.EVENT:\n      this.onevent(packet);\n      break;\n\n    case parser.BINARY_EVENT:\n      this.onevent(packet);\n      break;\n\n    case parser.ACK:\n      this.onack(packet);\n      break;\n\n    case parser.BINARY_ACK:\n      this.onack(packet);\n      break;\n\n    case parser.DISCONNECT:\n      this.ondisconnect();\n      break;\n\n    case parser.ERROR:\n      this.emit('error', packet.data);\n      break;\n  }\n};\n\n/**\n * Called upon a server event.\n *\n * @param {Object} packet\n * @api private\n */\n\nSocket.prototype.onevent = function(packet){\n  var args = packet.data || [];\n  debug('emitting event %j', args);\n\n  if (null != packet.id) {\n    debug('attaching ack callback to event');\n    args.push(this.ack(packet.id));\n  }\n\n  if (this.connected) {\n    emit.apply(this, args);\n  } else {\n    this.receiveBuffer.push(args);\n  }\n};\n\n/**\n * Produces an ack callback to emit with an event.\n *\n * @api private\n */\n\nSocket.prototype.ack = function(id){\n  var self = this;\n  var sent = false;\n  return function(){\n    // prevent double callbacks\n    if (sent) return;\n    sent = true;\n    var args = toArray(arguments);\n    debug('sending ack %j', args);\n\n    var type = hasBin(args) ? parser.BINARY_ACK : parser.ACK;\n    self.packet({\n      type: type,\n      id: id,\n      data: args\n    });\n  };\n};\n\n/**\n * Called upon a server acknowlegement.\n *\n * @param {Object} packet\n * @api private\n */\n\nSocket.prototype.onack = function(packet){\n  var ack = this.acks[packet.id];\n  if ('function' == typeof ack) {\n    debug('calling ack %s with %j', packet.id, packet.data);\n    ack.apply(this, packet.data);\n    delete this.acks[packet.id];\n  } else {\n    debug('bad ack %s', packet.id);\n  }\n};\n\n/**\n * Called upon server connect.\n *\n * @api private\n */\n\nSocket.prototype.onconnect = function(){\n  this.connected = true;\n  this.disconnected = false;\n  this.emit('connect');\n  this.emitBuffered();\n};\n\n/**\n * Emit buffered events (received and emitted).\n *\n * @api private\n */\n\nSocket.prototype.emitBuffered = function(){\n  var i;\n  for (i = 0; i < this.receiveBuffer.length; i++) {\n    emit.apply(this, this.receiveBuffer[i]);\n  }\n  this.receiveBuffer = [];\n\n  for (i = 0; i < this.sendBuffer.length; i++) {\n    this.packet(this.sendBuffer[i]);\n  }\n  this.sendBuffer = [];\n};\n\n/**\n * Called upon server disconnect.\n *\n * @api private\n */\n\nSocket.prototype.ondisconnect = function(){\n  debug('server disconnect (%s)', this.nsp);\n  this.destroy();\n  this.onclose('io server disconnect');\n};\n\n/**\n * Called upon forced client/server side disconnections,\n * this method ensures the manager stops tracking us and\n * that reconnections don't get triggered for this.\n *\n * @api private.\n */\n\nSocket.prototype.destroy = function(){\n  if (this.subs) {\n    // clean subscriptions to avoid reconnections\n    for (var i = 0; i < this.subs.length; i++) {\n      this.subs[i].destroy();\n    }\n    this.subs = null;\n  }\n\n  this.io.destroy(this);\n};\n\n/**\n * Disconnects the socket manually.\n *\n * @return {Socket} self\n * @api public\n */\n\nSocket.prototype.close =\nSocket.prototype.disconnect = function(){\n  if (this.connected) {\n    debug('performing disconnect (%s)', this.nsp);\n    this.packet({ type: parser.DISCONNECT });\n  }\n\n  // remove socket from pool\n  this.destroy();\n\n  if (this.connected) {\n    // fire events\n    this.onclose('io client disconnect');\n  }\n  return this;\n};\n\n/**\n * Sets the compress flag.\n *\n * @param {Boolean} if `true`, compresses the sending data\n * @return {Socket} self\n * @api public\n */\n\nSocket.prototype.compress = function(compress){\n  this.flags = this.flags || {};\n  this.flags.compress = compress;\n  return this;\n};\n","\n/**\n * Module dependencies.\n */\n\nvar parseuri = require('parseuri');\nvar debug = require('debug')('socket.io-client:url');\n\n/**\n * Module exports.\n */\n\nmodule.exports = url;\n\n/**\n * URL parser.\n *\n * @param {String} url\n * @param {Object} An object meant to mimic window.location.\n *                 Defaults to window.location.\n * @api public\n */\n\nfunction url(uri, loc){\n  var obj = uri;\n\n  // default to window.location\n  var loc = loc || global.location;\n  if (null == uri) uri = loc.protocol + '//' + loc.host;\n\n  // relative path support\n  if ('string' == typeof uri) {\n    if ('/' == uri.charAt(0)) {\n      if ('/' == uri.charAt(1)) {\n        uri = loc.protocol + uri;\n      } else {\n        uri = loc.host + uri;\n      }\n    }\n\n    if (!/^(https?|wss?):\\/\\//.test(uri)) {\n      debug('protocol-less url %s', uri);\n      if ('undefined' != typeof loc) {\n        uri = loc.protocol + '//' + uri;\n      } else {\n        uri = 'https://' + uri;\n      }\n    }\n\n    // parse\n    debug('parse %s', uri);\n    obj = parseuri(uri);\n  }\n\n  // make sure we treat `localhost:80` and `localhost` equally\n  if (!obj.port) {\n    if (/^(http|ws)$/.test(obj.protocol)) {\n      obj.port = '80';\n    }\n    else if (/^(http|ws)s$/.test(obj.protocol)) {\n      obj.port = '443';\n    }\n  }\n\n  obj.path = obj.path || '/';\n\n  var ipv6 = obj.host.indexOf(':') !== -1;\n  var host = ipv6 ? '[' + obj.host + ']' : obj.host;\n\n  // define unique id\n  obj.id = obj.protocol + '://' + host + ':' + obj.port;\n  // define href\n  obj.href = obj.protocol + '://' + host + (loc && loc.port == obj.port ? '' : (':' + obj.port));\n\n  return obj;\n}\n","\n/**\n * Expose `Emitter`.\n */\n\nmodule.exports = Emitter;\n\n/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nfunction Emitter(obj) {\n  if (obj) return mixin(obj);\n};\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n  for (var key in Emitter.prototype) {\n    obj[key] = Emitter.prototype[key];\n  }\n  return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\n    .push(fn);\n  return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n  function on() {\n    this.off(event, on);\n    fn.apply(this, arguments);\n  }\n\n  on.fn = fn;\n  this.on(event, on);\n  return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n\n  // all\n  if (0 == arguments.length) {\n    this._callbacks = {};\n    return this;\n  }\n\n  // specific event\n  var callbacks = this._callbacks['$' + event];\n  if (!callbacks) return this;\n\n  // remove all handlers\n  if (1 == arguments.length) {\n    delete this._callbacks['$' + event];\n    return this;\n  }\n\n  // remove specific handler\n  var cb;\n  for (var i = 0; i < callbacks.length; i++) {\n    cb = callbacks[i];\n    if (cb === fn || cb.fn === fn) {\n      callbacks.splice(i, 1);\n      break;\n    }\n  }\n  return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n  this._callbacks = this._callbacks || {};\n  var args = [].slice.call(arguments, 1)\n    , callbacks = this._callbacks['$' + event];\n\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\n      callbacks[i].apply(this, args);\n    }\n  }\n\n  return this;\n};\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n  this._callbacks = this._callbacks || {};\n  return this._callbacks['$' + event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n  return !! this.listeners(event).length;\n};\n","/*global Blob,File*/\n\n/**\n * Module requirements\n */\n\nvar isArray = require('isarray');\nvar isBuf = require('./is-buffer');\n\n/**\n * Replaces every Buffer | ArrayBuffer in packet with a numbered placeholder.\n * Anything with blobs or files should be fed through removeBlobs before coming\n * here.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @api public\n */\n\nexports.deconstructPacket = function(packet){\n  var buffers = [];\n  var packetData = packet.data;\n\n  function _deconstructPacket(data) {\n    if (!data) return data;\n\n    if (isBuf(data)) {\n      var placeholder = { _placeholder: true, num: buffers.length };\n      buffers.push(data);\n      return placeholder;\n    } else if (isArray(data)) {\n      var newData = new Array(data.length);\n      for (var i = 0; i < data.length; i++) {\n        newData[i] = _deconstructPacket(data[i]);\n      }\n      return newData;\n    } else if ('object' == typeof data && !(data instanceof Date)) {\n      var newData = {};\n      for (var key in data) {\n        newData[key] = _deconstructPacket(data[key]);\n      }\n      return newData;\n    }\n    return data;\n  }\n\n  var pack = packet;\n  pack.data = _deconstructPacket(packetData);\n  pack.attachments = buffers.length; // number of binary 'attachments'\n  return {packet: pack, buffers: buffers};\n};\n\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @api public\n */\n\nexports.reconstructPacket = function(packet, buffers) {\n  var curPlaceHolder = 0;\n\n  function _reconstructPacket(data) {\n    if (data && data._placeholder) {\n      var buf = buffers[data.num]; // appropriate buffer (should be natural order anyway)\n      return buf;\n    } else if (isArray(data)) {\n      for (var i = 0; i < data.length; i++) {\n        data[i] = _reconstructPacket(data[i]);\n      }\n      return data;\n    } else if (data && 'object' == typeof data) {\n      for (var key in data) {\n        data[key] = _reconstructPacket(data[key]);\n      }\n      return data;\n    }\n    return data;\n  }\n\n  packet.data = _reconstructPacket(packet.data);\n  packet.attachments = undefined; // no longer useful\n  return packet;\n};\n\n/**\n * Asynchronously removes Blobs or Files from data via\n * FileReader's readAsArrayBuffer method. Used before encoding\n * data as msgpack. Calls callback with the blobless data.\n *\n * @param {Object} data\n * @param {Function} callback\n * @api private\n */\n\nexports.removeBlobs = function(data, callback) {\n  function _removeBlobs(obj, curKey, containingObject) {\n    if (!obj) return obj;\n\n    // convert any blob\n    if ((global.Blob && obj instanceof Blob) ||\n        (global.File && obj instanceof File)) {\n      pendingBlobs++;\n\n      // async filereader\n      var fileReader = new FileReader();\n      fileReader.onload = function() { // this.result == arraybuffer\n        if (containingObject) {\n          containingObject[curKey] = this.result;\n        }\n        else {\n          bloblessData = this.result;\n        }\n\n        // if nothing pending its callback time\n        if(! --pendingBlobs) {\n          callback(bloblessData);\n        }\n      };\n\n      fileReader.readAsArrayBuffer(obj); // blob -> arraybuffer\n    } else if (isArray(obj)) { // handle array\n      for (var i = 0; i < obj.length; i++) {\n        _removeBlobs(obj[i], i, obj);\n      }\n    } else if (obj && 'object' == typeof obj && !isBuf(obj)) { // and object\n      for (var key in obj) {\n        _removeBlobs(obj[key], key, obj);\n      }\n    }\n  }\n\n  var pendingBlobs = 0;\n  var bloblessData = data;\n  _removeBlobs(bloblessData);\n  if (!pendingBlobs) {\n    callback(bloblessData);\n  }\n};\n","\n/**\n * Module dependencies.\n */\n\nvar debug = require('debug')('socket.io-parser');\nvar json = require('json3');\nvar isArray = require('isarray');\nvar Emitter = require('component-emitter');\nvar binary = require('./binary');\nvar isBuf = require('./is-buffer');\n\n/**\n * Protocol version.\n *\n * @api public\n */\n\nexports.protocol = 4;\n\n/**\n * Packet types.\n *\n * @api public\n */\n\nexports.types = [\n  'CONNECT',\n  'DISCONNECT',\n  'EVENT',\n  'ACK',\n  'ERROR',\n  'BINARY_EVENT',\n  'BINARY_ACK'\n];\n\n/**\n * Packet type `connect`.\n *\n * @api public\n */\n\nexports.CONNECT = 0;\n\n/**\n * Packet type `disconnect`.\n *\n * @api public\n */\n\nexports.DISCONNECT = 1;\n\n/**\n * Packet type `event`.\n *\n * @api public\n */\n\nexports.EVENT = 2;\n\n/**\n * Packet type `ack`.\n *\n * @api public\n */\n\nexports.ACK = 3;\n\n/**\n * Packet type `error`.\n *\n * @api public\n */\n\nexports.ERROR = 4;\n\n/**\n * Packet type 'binary event'\n *\n * @api public\n */\n\nexports.BINARY_EVENT = 5;\n\n/**\n * Packet type `binary ack`. For acks with binary arguments.\n *\n * @api public\n */\n\nexports.BINARY_ACK = 6;\n\n/**\n * Encoder constructor.\n *\n * @api public\n */\n\nexports.Encoder = Encoder;\n\n/**\n * Decoder constructor.\n *\n * @api public\n */\n\nexports.Decoder = Decoder;\n\n/**\n * A socket.io Encoder instance\n *\n * @api public\n */\n\nfunction Encoder() {}\n\n/**\n * Encode a packet as a single string if non-binary, or as a\n * buffer sequence, depending on packet type.\n *\n * @param {Object} obj - packet object\n * @param {Function} callback - function to handle encodings (likely engine.write)\n * @return Calls callback with Array of encodings\n * @api public\n */\n\nEncoder.prototype.encode = function(obj, callback){\n  debug('encoding packet %j', obj);\n\n  if (exports.BINARY_EVENT == obj.type || exports.BINARY_ACK == obj.type) {\n    encodeAsBinary(obj, callback);\n  }\n  else {\n    var encoding = encodeAsString(obj);\n    callback([encoding]);\n  }\n};\n\n/**\n * Encode packet as string.\n *\n * @param {Object} packet\n * @return {String} encoded\n * @api private\n */\n\nfunction encodeAsString(obj) {\n  var str = '';\n  var nsp = false;\n\n  // first is type\n  str += obj.type;\n\n  // attachments if we have them\n  if (exports.BINARY_EVENT == obj.type || exports.BINARY_ACK == obj.type) {\n    str += obj.attachments;\n    str += '-';\n  }\n\n  // if we have a namespace other than `/`\n  // we append it followed by a comma `,`\n  if (obj.nsp && '/' != obj.nsp) {\n    nsp = true;\n    str += obj.nsp;\n  }\n\n  // immediately followed by the id\n  if (null != obj.id) {\n    if (nsp) {\n      str += ',';\n      nsp = false;\n    }\n    str += obj.id;\n  }\n\n  // json data\n  if (null != obj.data) {\n    if (nsp) str += ',';\n    str += json.stringify(obj.data);\n  }\n\n  debug('encoded %j as %s', obj, str);\n  return str;\n}\n\n/**\n * Encode packet as 'buffer sequence' by removing blobs, and\n * deconstructing packet into object with placeholders and\n * a list of buffers.\n *\n * @param {Object} packet\n * @return {Buffer} encoded\n * @api private\n */\n\nfunction encodeAsBinary(obj, callback) {\n\n  function writeEncoding(bloblessData) {\n    var deconstruction = binary.deconstructPacket(bloblessData);\n    var pack = encodeAsString(deconstruction.packet);\n    var buffers = deconstruction.buffers;\n\n    buffers.unshift(pack); // add packet info to beginning of data list\n    callback(buffers); // write all the buffers\n  }\n\n  binary.removeBlobs(obj, writeEncoding);\n}\n\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n * @api public\n */\n\nfunction Decoder() {\n  this.reconstructor = null;\n}\n\n/**\n * Mix in `Emitter` with Decoder.\n */\n\nEmitter(Decoder.prototype);\n\n/**\n * Decodes an ecoded packet string into packet JSON.\n *\n * @param {String} obj - encoded packet\n * @return {Object} packet\n * @api public\n */\n\nDecoder.prototype.add = function(obj) {\n  var packet;\n  if ('string' == typeof obj) {\n    packet = decodeString(obj);\n    if (exports.BINARY_EVENT == packet.type || exports.BINARY_ACK == packet.type) { // binary packet's json\n      this.reconstructor = new BinaryReconstructor(packet);\n\n      // no attachments, labeled binary but no binary data to follow\n      if (this.reconstructor.reconPack.attachments === 0) {\n        this.emit('decoded', packet);\n      }\n    } else { // non-binary full packet\n      this.emit('decoded', packet);\n    }\n  }\n  else if (isBuf(obj) || obj.base64) { // raw binary data\n    if (!this.reconstructor) {\n      throw new Error('got binary data when not reconstructing a packet');\n    } else {\n      packet = this.reconstructor.takeBinaryData(obj);\n      if (packet) { // received final buffer\n        this.reconstructor = null;\n        this.emit('decoded', packet);\n      }\n    }\n  }\n  else {\n    throw new Error('Unknown type: ' + obj);\n  }\n};\n\n/**\n * Decode a packet String (JSON data)\n *\n * @param {String} str\n * @return {Object} packet\n * @api private\n */\n\nfunction decodeString(str) {\n  var p = {};\n  var i = 0;\n\n  // look up type\n  p.type = Number(str.charAt(0));\n  if (null == exports.types[p.type]) return error();\n\n  // look up attachments if type binary\n  if (exports.BINARY_EVENT == p.type || exports.BINARY_ACK == p.type) {\n    var buf = '';\n    while (str.charAt(++i) != '-') {\n      buf += str.charAt(i);\n      if (i == str.length) break;\n    }\n    if (buf != Number(buf) || str.charAt(i) != '-') {\n      throw new Error('Illegal attachments');\n    }\n    p.attachments = Number(buf);\n  }\n\n  // look up namespace (if any)\n  if ('/' == str.charAt(i + 1)) {\n    p.nsp = '';\n    while (++i) {\n      var c = str.charAt(i);\n      if (',' == c) break;\n      p.nsp += c;\n      if (i == str.length) break;\n    }\n  } else {\n    p.nsp = '/';\n  }\n\n  // look up id\n  var next = str.charAt(i + 1);\n  if ('' !== next && Number(next) == next) {\n    p.id = '';\n    while (++i) {\n      var c = str.charAt(i);\n      if (null == c || Number(c) != c) {\n        --i;\n        break;\n      }\n      p.id += str.charAt(i);\n      if (i == str.length) break;\n    }\n    p.id = Number(p.id);\n  }\n\n  // look up json data\n  if (str.charAt(++i)) {\n    try {\n      p.data = json.parse(str.substr(i));\n    } catch(e){\n      return error();\n    }\n  }\n\n  debug('decoded %s as %j', str, p);\n  return p;\n}\n\n/**\n * Deallocates a parser's resources\n *\n * @api public\n */\n\nDecoder.prototype.destroy = function() {\n  if (this.reconstructor) {\n    this.reconstructor.finishedReconstruction();\n  }\n};\n\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n * @api private\n */\n\nfunction BinaryReconstructor(packet) {\n  this.reconPack = packet;\n  this.buffers = [];\n}\n\n/**\n * Method to be called when binary data received from connection\n * after a BINARY_EVENT packet.\n *\n * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n * @return {null | Object} returns null if more binary data is expected or\n *   a reconstructed packet object if all buffers have been received.\n * @api private\n */\n\nBinaryReconstructor.prototype.takeBinaryData = function(binData) {\n  this.buffers.push(binData);\n  if (this.buffers.length == this.reconPack.attachments) { // done with buffer list\n    var packet = binary.reconstructPacket(this.reconPack, this.buffers);\n    this.finishedReconstruction();\n    return packet;\n  }\n  return null;\n};\n\n/**\n * Cleans up binary packet reconstruction variables.\n *\n * @api private\n */\n\nBinaryReconstructor.prototype.finishedReconstruction = function() {\n  this.reconPack = null;\n  this.buffers = [];\n};\n\nfunction error(data){\n  return {\n    type: exports.ERROR,\n    data: 'parser error'\n  };\n}\n","\nmodule.exports = isBuf;\n\n/**\n * Returns true if obj is a buffer or an arraybuffer.\n *\n * @api private\n */\n\nfunction isBuf(obj) {\n  return (global.Buffer && global.Buffer.isBuffer(obj)) ||\n         (global.ArrayBuffer && obj instanceof ArrayBuffer);\n}\n","/*! JSON v3.3.2 | http://bestiejs.github.io/json3 | Copyright 2012-2014, Kit Cambridge | http://kit.mit-license.org */\n;(function () {\n  // Detect the `define` function exposed by asynchronous module loaders. The\n  // strict `define` check is necessary for compatibility with `r.js`.\n  var isLoader = typeof define === \"function\" && define.amd;\n\n  // A set of types used to distinguish objects from primitives.\n  var objectTypes = {\n    \"function\": true,\n    \"object\": true\n  };\n\n  // Detect the `exports` object exposed by CommonJS implementations.\n  var freeExports = objectTypes[typeof exports] && exports && !exports.nodeType && exports;\n\n  // Use the `global` object exposed by Node (including Browserify via\n  // `insert-module-globals`), Narwhal, and Ringo as the default context,\n  // and the `window` object in browsers. Rhino exports a `global` function\n  // instead.\n  var root = objectTypes[typeof window] && window || this,\n      freeGlobal = freeExports && objectTypes[typeof module] && module && !module.nodeType && typeof global == \"object\" && global;\n\n  if (freeGlobal && (freeGlobal[\"global\"] === freeGlobal || freeGlobal[\"window\"] === freeGlobal || freeGlobal[\"self\"] === freeGlobal)) {\n    root = freeGlobal;\n  }\n\n  // Public: Initializes JSON 3 using the given `context` object, attaching the\n  // `stringify` and `parse` functions to the specified `exports` object.\n  function runInContext(context, exports) {\n    context || (context = root[\"Object\"]());\n    exports || (exports = root[\"Object\"]());\n\n    // Native constructor aliases.\n    var Number = context[\"Number\"] || root[\"Number\"],\n        String = context[\"String\"] || root[\"String\"],\n        Object = context[\"Object\"] || root[\"Object\"],\n        Date = context[\"Date\"] || root[\"Date\"],\n        SyntaxError = context[\"SyntaxError\"] || root[\"SyntaxError\"],\n        TypeError = context[\"TypeError\"] || root[\"TypeError\"],\n        Math = context[\"Math\"] || root[\"Math\"],\n        nativeJSON = context[\"JSON\"] || root[\"JSON\"];\n\n    // Delegate to the native `stringify` and `parse` implementations.\n    if (typeof nativeJSON == \"object\" && nativeJSON) {\n      exports.stringify = nativeJSON.stringify;\n      exports.parse = nativeJSON.parse;\n    }\n\n    // Convenience aliases.\n    var objectProto = Object.prototype,\n        getClass = objectProto.toString,\n        isProperty, forEach, undef;\n\n    // Test the `Date#getUTC*` methods. Based on work by @Yaffle.\n    var isExtended = new Date(-3509827334573292);\n    try {\n      // The `getUTCFullYear`, `Month`, and `Date` methods return nonsensical\n      // results for certain dates in Opera >= 10.53.\n      isExtended = isExtended.getUTCFullYear() == -109252 && isExtended.getUTCMonth() === 0 && isExtended.getUTCDate() === 1 &&\n        // Safari < 2.0.2 stores the internal millisecond time value correctly,\n        // but clips the values returned by the date methods to the range of\n        // signed 32-bit integers ([-2 ** 31, 2 ** 31 - 1]).\n        isExtended.getUTCHours() == 10 && isExtended.getUTCMinutes() == 37 && isExtended.getUTCSeconds() == 6 && isExtended.getUTCMilliseconds() == 708;\n    } catch (exception) {}\n\n    // Internal: Determines whether the native `JSON.stringify` and `parse`\n    // implementations are spec-compliant. Based on work by Ken Snyder.\n    function has(name) {\n      if (has[name] !== undef) {\n        // Return cached feature test result.\n        return has[name];\n      }\n      var isSupported;\n      if (name == \"bug-string-char-index\") {\n        // IE <= 7 doesn't support accessing string characters using square\n        // bracket notation. IE 8 only supports this for primitives.\n        isSupported = \"a\"[0] != \"a\";\n      } else if (name == \"json\") {\n        // Indicates whether both `JSON.stringify` and `JSON.parse` are\n        // supported.\n        isSupported = has(\"json-stringify\") && has(\"json-parse\");\n      } else {\n        var value, serialized = '{\"a\":[1,true,false,null,\"\\\\u0000\\\\b\\\\n\\\\f\\\\r\\\\t\"]}';\n        // Test `JSON.stringify`.\n        if (name == \"json-stringify\") {\n          var stringify = exports.stringify, stringifySupported = typeof stringify == \"function\" && isExtended;\n          if (stringifySupported) {\n            // A test function object with a custom `toJSON` method.\n            (value = function () {\n              return 1;\n            }).toJSON = value;\n            try {\n              stringifySupported =\n                // Firefox 3.1b1 and b2 serialize string, number, and boolean\n                // primitives as object literals.\n                stringify(0) === \"0\" &&\n                // FF 3.1b1, b2, and JSON 2 serialize wrapped primitives as object\n                // literals.\n                stringify(new Number()) === \"0\" &&\n                stringify(new String()) == '\"\"' &&\n                // FF 3.1b1, 2 throw an error if the value is `null`, `undefined`, or\n                // does not define a canonical JSON representation (this applies to\n                // objects with `toJSON` properties as well, *unless* they are nested\n                // within an object or array).\n                stringify(getClass) === undef &&\n                // IE 8 serializes `undefined` as `\"undefined\"`. Safari <= 5.1.7 and\n                // FF 3.1b3 pass this test.\n                stringify(undef) === undef &&\n                // Safari <= 5.1.7 and FF 3.1b3 throw `Error`s and `TypeError`s,\n                // respectively, if the value is omitted entirely.\n                stringify() === undef &&\n                // FF 3.1b1, 2 throw an error if the given value is not a number,\n                // string, array, object, Boolean, or `null` literal. This applies to\n                // objects with custom `toJSON` methods as well, unless they are nested\n                // inside object or array literals. YUI 3.0.0b1 ignores custom `toJSON`\n                // methods entirely.\n                stringify(value) === \"1\" &&\n                stringify([value]) == \"[1]\" &&\n                // Prototype <= 1.6.1 serializes `[undefined]` as `\"[]\"` instead of\n                // `\"[null]\"`.\n                stringify([undef]) == \"[null]\" &&\n                // YUI 3.0.0b1 fails to serialize `null` literals.\n                stringify(null) == \"null\" &&\n                // FF 3.1b1, 2 halts serialization if an array contains a function:\n                // `[1, true, getClass, 1]` serializes as \"[1,true,],\". FF 3.1b3\n                // elides non-JSON values from objects and arrays, unless they\n                // define custom `toJSON` methods.\n                stringify([undef, getClass, null]) == \"[null,null,null]\" &&\n                // Simple serialization test. FF 3.1b1 uses Unicode escape sequences\n                // where character escape codes are expected (e.g., `\\b` => `\\u0008`).\n                stringify({ \"a\": [value, true, false, null, \"\\x00\\b\\n\\f\\r\\t\"] }) == serialized &&\n                // FF 3.1b1 and b2 ignore the `filter` and `width` arguments.\n                stringify(null, value) === \"1\" &&\n                stringify([1, 2], null, 1) == \"[\\n 1,\\n 2\\n]\" &&\n                // JSON 2, Prototype <= 1.7, and older WebKit builds incorrectly\n                // serialize extended years.\n                stringify(new Date(-8.64e15)) == '\"-271821-04-20T00:00:00.000Z\"' &&\n                // The milliseconds are optional in ES 5, but required in 5.1.\n                stringify(new Date(8.64e15)) == '\"+275760-09-13T00:00:00.000Z\"' &&\n                // Firefox <= 11.0 incorrectly serializes years prior to 0 as negative\n                // four-digit years instead of six-digit years. Credits: @Yaffle.\n                stringify(new Date(-621987552e5)) == '\"-000001-01-01T00:00:00.000Z\"' &&\n                // Safari <= 5.1.5 and Opera >= 10.53 incorrectly serialize millisecond\n                // values less than 1000. Credits: @Yaffle.\n                stringify(new Date(-1)) == '\"1969-12-31T23:59:59.999Z\"';\n            } catch (exception) {\n              stringifySupported = false;\n            }\n          }\n          isSupported = stringifySupported;\n        }\n        // Test `JSON.parse`.\n        if (name == \"json-parse\") {\n          var parse = exports.parse;\n          if (typeof parse == \"function\") {\n            try {\n              // FF 3.1b1, b2 will throw an exception if a bare literal is provided.\n              // Conforming implementations should also coerce the initial argument to\n              // a string prior to parsing.\n              if (parse(\"0\") === 0 && !parse(false)) {\n                // Simple parsing test.\n                value = parse(serialized);\n                var parseSupported = value[\"a\"].length == 5 && value[\"a\"][0] === 1;\n                if (parseSupported) {\n                  try {\n                    // Safari <= 5.1.2 and FF 3.1b1 allow unescaped tabs in strings.\n                    parseSupported = !parse('\"\\t\"');\n                  } catch (exception) {}\n                  if (parseSupported) {\n                    try {\n                      // FF 4.0 and 4.0.1 allow leading `+` signs and leading\n                      // decimal points. FF 4.0, 4.0.1, and IE 9-10 also allow\n                      // certain octal literals.\n                      parseSupported = parse(\"01\") !== 1;\n                    } catch (exception) {}\n                  }\n                  if (parseSupported) {\n                    try {\n                      // FF 4.0, 4.0.1, and Rhino 1.7R3-R4 allow trailing decimal\n                      // points. These environments, along with FF 3.1b1 and 2,\n                      // also allow trailing commas in JSON objects and arrays.\n                      parseSupported = parse(\"1.\") !== 1;\n                    } catch (exception) {}\n                  }\n                }\n              }\n            } catch (exception) {\n              parseSupported = false;\n            }\n          }\n          isSupported = parseSupported;\n        }\n      }\n      return has[name] = !!isSupported;\n    }\n\n    if (!has(\"json\")) {\n      // Common `[[Class]]` name aliases.\n      var functionClass = \"[object Function]\",\n          dateClass = \"[object Date]\",\n          numberClass = \"[object Number]\",\n          stringClass = \"[object String]\",\n          arrayClass = \"[object Array]\",\n          booleanClass = \"[object Boolean]\";\n\n      // Detect incomplete support for accessing string characters by index.\n      var charIndexBuggy = has(\"bug-string-char-index\");\n\n      // Define additional utility methods if the `Date` methods are buggy.\n      if (!isExtended) {\n        var floor = Math.floor;\n        // A mapping between the months of the year and the number of days between\n        // January 1st and the first of the respective month.\n        var Months = [0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334];\n        // Internal: Calculates the number of days between the Unix epoch and the\n        // first day of the given month.\n        var getDay = function (year, month) {\n          return Months[month] + 365 * (year - 1970) + floor((year - 1969 + (month = +(month > 1))) / 4) - floor((year - 1901 + month) / 100) + floor((year - 1601 + month) / 400);\n        };\n      }\n\n      // Internal: Determines if a property is a direct property of the given\n      // object. Delegates to the native `Object#hasOwnProperty` method.\n      if (!(isProperty = objectProto.hasOwnProperty)) {\n        isProperty = function (property) {\n          var members = {}, constructor;\n          if ((members.__proto__ = null, members.__proto__ = {\n            // The *proto* property cannot be set multiple times in recent\n            // versions of Firefox and SeaMonkey.\n            \"toString\": 1\n          }, members).toString != getClass) {\n            // Safari <= 2.0.3 doesn't implement `Object#hasOwnProperty`, but\n            // supports the mutable *proto* property.\n            isProperty = function (property) {\n              // Capture and break the object's prototype chain (see section 8.6.2\n              // of the ES 5.1 spec). The parenthesized expression prevents an\n              // unsafe transformation by the Closure Compiler.\n              var original = this.__proto__, result = property in (this.__proto__ = null, this);\n              // Restore the original prototype chain.\n              this.__proto__ = original;\n              return result;\n            };\n          } else {\n            // Capture a reference to the top-level `Object` constructor.\n            constructor = members.constructor;\n            // Use the `constructor` property to simulate `Object#hasOwnProperty` in\n            // other environments.\n            isProperty = function (property) {\n              var parent = (this.constructor || constructor).prototype;\n              return property in this && !(property in parent && this[property] === parent[property]);\n            };\n          }\n          members = null;\n          return isProperty.call(this, property);\n        };\n      }\n\n      // Internal: Normalizes the `for...in` iteration algorithm across\n      // environments. Each enumerated key is yielded to a `callback` function.\n      forEach = function (object, callback) {\n        var size = 0, Properties, members, property;\n\n        // Tests for bugs in the current environment's `for...in` algorithm. The\n        // `valueOf` property inherits the non-enumerable flag from\n        // `Object.prototype` in older versions of IE, Netscape, and Mozilla.\n        (Properties = function () {\n          this.valueOf = 0;\n        }).prototype.valueOf = 0;\n\n        // Iterate over a new instance of the `Properties` class.\n        members = new Properties();\n        for (property in members) {\n          // Ignore all properties inherited from `Object.prototype`.\n          if (isProperty.call(members, property)) {\n            size++;\n          }\n        }\n        Properties = members = null;\n\n        // Normalize the iteration algorithm.\n        if (!size) {\n          // A list of non-enumerable properties inherited from `Object.prototype`.\n          members = [\"valueOf\", \"toString\", \"toLocaleString\", \"propertyIsEnumerable\", \"isPrototypeOf\", \"hasOwnProperty\", \"constructor\"];\n          // IE <= 8, Mozilla 1.0, and Netscape 6.2 ignore shadowed non-enumerable\n          // properties.\n          forEach = function (object, callback) {\n            var isFunction = getClass.call(object) == functionClass, property, length;\n            var hasProperty = !isFunction && typeof object.constructor != \"function\" && objectTypes[typeof object.hasOwnProperty] && object.hasOwnProperty || isProperty;\n            for (property in object) {\n              // Gecko <= 1.0 enumerates the `prototype` property of functions under\n              // certain conditions; IE does not.\n              if (!(isFunction && property == \"prototype\") && hasProperty.call(object, property)) {\n                callback(property);\n              }\n            }\n            // Manually invoke the callback for each non-enumerable property.\n            for (length = members.length; property = members[--length]; hasProperty.call(object, property) && callback(property));\n          };\n        } else if (size == 2) {\n          // Safari <= 2.0.4 enumerates shadowed properties twice.\n          forEach = function (object, callback) {\n            // Create a set of iterated properties.\n            var members = {}, isFunction = getClass.call(object) == functionClass, property;\n            for (property in object) {\n              // Store each property name to prevent double enumeration. The\n              // `prototype` property of functions is not enumerated due to cross-\n              // environment inconsistencies.\n              if (!(isFunction && property == \"prototype\") && !isProperty.call(members, property) && (members[property] = 1) && isProperty.call(object, property)) {\n                callback(property);\n              }\n            }\n          };\n        } else {\n          // No bugs detected; use the standard `for...in` algorithm.\n          forEach = function (object, callback) {\n            var isFunction = getClass.call(object) == functionClass, property, isConstructor;\n            for (property in object) {\n              if (!(isFunction && property == \"prototype\") && isProperty.call(object, property) && !(isConstructor = property === \"constructor\")) {\n                callback(property);\n              }\n            }\n            // Manually invoke the callback for the `constructor` property due to\n            // cross-environment inconsistencies.\n            if (isConstructor || isProperty.call(object, (property = \"constructor\"))) {\n              callback(property);\n            }\n          };\n        }\n        return forEach(object, callback);\n      };\n\n      // Public: Serializes a JavaScript `value` as a JSON string. The optional\n      // `filter` argument may specify either a function that alters how object and\n      // array members are serialized, or an array of strings and numbers that\n      // indicates which properties should be serialized. The optional `width`\n      // argument may be either a string or number that specifies the indentation\n      // level of the output.\n      if (!has(\"json-stringify\")) {\n        // Internal: A map of control characters and their escaped equivalents.\n        var Escapes = {\n          92: \"\\\\\\\\\",\n          34: '\\\\\"',\n          8: \"\\\\b\",\n          12: \"\\\\f\",\n          10: \"\\\\n\",\n          13: \"\\\\r\",\n          9: \"\\\\t\"\n        };\n\n        // Internal: Converts `value` into a zero-padded string such that its\n        // length is at least equal to `width`. The `width` must be <= 6.\n        var leadingZeroes = \"000000\";\n        var toPaddedString = function (width, value) {\n          // The `|| 0` expression is necessary to work around a bug in\n          // Opera <= 7.54u2 where `0 == -0`, but `String(-0) !== \"0\"`.\n          return (leadingZeroes + (value || 0)).slice(-width);\n        };\n\n        // Internal: Double-quotes a string `value`, replacing all ASCII control\n        // characters (characters with code unit values between 0 and 31) with\n        // their escaped equivalents. This is an implementation of the\n        // `Quote(value)` operation defined in ES 5.1 section 15.12.3.\n        var unicodePrefix = \"\\\\u00\";\n        var quote = function (value) {\n          var result = '\"', index = 0, length = value.length, useCharIndex = !charIndexBuggy || length > 10;\n          var symbols = useCharIndex && (charIndexBuggy ? value.split(\"\") : value);\n          for (; index < length; index++) {\n            var charCode = value.charCodeAt(index);\n            // If the character is a control character, append its Unicode or\n            // shorthand escape sequence; otherwise, append the character as-is.\n            switch (charCode) {\n              case 8: case 9: case 10: case 12: case 13: case 34: case 92:\n                result += Escapes[charCode];\n                break;\n              default:\n                if (charCode < 32) {\n                  result += unicodePrefix + toPaddedString(2, charCode.toString(16));\n                  break;\n                }\n                result += useCharIndex ? symbols[index] : value.charAt(index);\n            }\n          }\n          return result + '\"';\n        };\n\n        // Internal: Recursively serializes an object. Implements the\n        // `Str(key, holder)`, `JO(value)`, and `JA(value)` operations.\n        var serialize = function (property, object, callback, properties, whitespace, indentation, stack) {\n          var value, className, year, month, date, time, hours, minutes, seconds, milliseconds, results, element, index, length, prefix, result;\n          try {\n            // Necessary for host object support.\n            value = object[property];\n          } catch (exception) {}\n          if (typeof value == \"object\" && value) {\n            className = getClass.call(value);\n            if (className == dateClass && !isProperty.call(value, \"toJSON\")) {\n              if (value > -1 / 0 && value < 1 / 0) {\n                // Dates are serialized according to the `Date#toJSON` method\n                // specified in ES 5.1 section 15.9.5.44. See section 15.9.1.15\n                // for the ISO 8601 date time string format.\n                if (getDay) {\n                  // Manually compute the year, month, date, hours, minutes,\n                  // seconds, and milliseconds if the `getUTC*` methods are\n                  // buggy. Adapted from @Yaffle's `date-shim` project.\n                  date = floor(value / 864e5);\n                  for (year = floor(date / 365.2425) + 1970 - 1; getDay(year + 1, 0) <= date; year++);\n                  for (month = floor((date - getDay(year, 0)) / 30.42); getDay(year, month + 1) <= date; month++);\n                  date = 1 + date - getDay(year, month);\n                  // The `time` value specifies the time within the day (see ES\n                  // 5.1 section 15.9.1.2). The formula `(A % B + B) % B` is used\n                  // to compute `A modulo B`, as the `%` operator does not\n                  // correspond to the `modulo` operation for negative numbers.\n                  time = (value % 864e5 + 864e5) % 864e5;\n                  // The hours, minutes, seconds, and milliseconds are obtained by\n                  // decomposing the time within the day. See section 15.9.1.10.\n                  hours = floor(time / 36e5) % 24;\n                  minutes = floor(time / 6e4) % 60;\n                  seconds = floor(time / 1e3) % 60;\n                  milliseconds = time % 1e3;\n                } else {\n                  year = value.getUTCFullYear();\n                  month = value.getUTCMonth();\n                  date = value.getUTCDate();\n                  hours = value.getUTCHours();\n                  minutes = value.getUTCMinutes();\n                  seconds = value.getUTCSeconds();\n                  milliseconds = value.getUTCMilliseconds();\n                }\n                // Serialize extended years correctly.\n                value = (year <= 0 || year >= 1e4 ? (year < 0 ? \"-\" : \"+\") + toPaddedString(6, year < 0 ? -year : year) : toPaddedString(4, year)) +\n                  \"-\" + toPaddedString(2, month + 1) + \"-\" + toPaddedString(2, date) +\n                  // Months, dates, hours, minutes, and seconds should have two\n                  // digits; milliseconds should have three.\n                  \"T\" + toPaddedString(2, hours) + \":\" + toPaddedString(2, minutes) + \":\" + toPaddedString(2, seconds) +\n                  // Milliseconds are optional in ES 5.0, but required in 5.1.\n                  \".\" + toPaddedString(3, milliseconds) + \"Z\";\n              } else {\n                value = null;\n              }\n            } else if (typeof value.toJSON == \"function\" && ((className != numberClass && className != stringClass && className != arrayClass) || isProperty.call(value, \"toJSON\"))) {\n              // Prototype <= 1.6.1 adds non-standard `toJSON` methods to the\n              // `Number`, `String`, `Date`, and `Array` prototypes. JSON 3\n              // ignores all `toJSON` methods on these objects unless they are\n              // defined directly on an instance.\n              value = value.toJSON(property);\n            }\n          }\n          if (callback) {\n            // If a replacement function was provided, call it to obtain the value\n            // for serialization.\n            value = callback.call(object, property, value);\n          }\n          if (value === null) {\n            return \"null\";\n          }\n          className = getClass.call(value);\n          if (className == booleanClass) {\n            // Booleans are represented literally.\n            return \"\" + value;\n          } else if (className == numberClass) {\n            // JSON numbers must be finite. `Infinity` and `NaN` are serialized as\n            // `\"null\"`.\n            return value > -1 / 0 && value < 1 / 0 ? \"\" + value : \"null\";\n          } else if (className == stringClass) {\n            // Strings are double-quoted and escaped.\n            return quote(\"\" + value);\n          }\n          // Recursively serialize objects and arrays.\n          if (typeof value == \"object\") {\n            // Check for cyclic structures. This is a linear search; performance\n            // is inversely proportional to the number of unique nested objects.\n            for (length = stack.length; length--;) {\n              if (stack[length] === value) {\n                // Cyclic structures cannot be serialized by `JSON.stringify`.\n                throw TypeError();\n              }\n            }\n            // Add the object to the stack of traversed objects.\n            stack.push(value);\n            results = [];\n            // Save the current indentation level and indent one additional level.\n            prefix = indentation;\n            indentation += whitespace;\n            if (className == arrayClass) {\n              // Recursively serialize array elements.\n              for (index = 0, length = value.length; index < length; index++) {\n                element = serialize(index, value, callback, properties, whitespace, indentation, stack);\n                results.push(element === undef ? \"null\" : element);\n              }\n              result = results.length ? (whitespace ? \"[\\n\" + indentation + results.join(\",\\n\" + indentation) + \"\\n\" + prefix + \"]\" : (\"[\" + results.join(\",\") + \"]\")) : \"[]\";\n            } else {\n              // Recursively serialize object members. Members are selected from\n              // either a user-specified list of property names, or the object\n              // itself.\n              forEach(properties || value, function (property) {\n                var element = serialize(property, value, callback, properties, whitespace, indentation, stack);\n                if (element !== undef) {\n                  // According to ES 5.1 section 15.12.3: \"If `gap` {whitespace}\n                  // is not the empty string, let `member` {quote(property) + \":\"}\n                  // be the concatenation of `member` and the `space` character.\"\n                  // The \"`space` character\" refers to the literal space\n                  // character, not the `space` {width} argument provided to\n                  // `JSON.stringify`.\n                  results.push(quote(property) + \":\" + (whitespace ? \" \" : \"\") + element);\n                }\n              });\n              result = results.length ? (whitespace ? \"{\\n\" + indentation + results.join(\",\\n\" + indentation) + \"\\n\" + prefix + \"}\" : (\"{\" + results.join(\",\") + \"}\")) : \"{}\";\n            }\n            // Remove the object from the traversed object stack.\n            stack.pop();\n            return result;\n          }\n        };\n\n        // Public: `JSON.stringify`. See ES 5.1 section 15.12.3.\n        exports.stringify = function (source, filter, width) {\n          var whitespace, callback, properties, className;\n          if (objectTypes[typeof filter] && filter) {\n            if ((className = getClass.call(filter)) == functionClass) {\n              callback = filter;\n            } else if (className == arrayClass) {\n              // Convert the property names array into a makeshift set.\n              properties = {};\n              for (var index = 0, length = filter.length, value; index < length; value = filter[index++], ((className = getClass.call(value)), className == stringClass || className == numberClass) && (properties[value] = 1));\n            }\n          }\n          if (width) {\n            if ((className = getClass.call(width)) == numberClass) {\n              // Convert the `width` to an integer and create a string containing\n              // `width` number of space characters.\n              if ((width -= width % 1) > 0) {\n                for (whitespace = \"\", width > 10 && (width = 10); whitespace.length < width; whitespace += \" \");\n              }\n            } else if (className == stringClass) {\n              whitespace = width.length <= 10 ? width : width.slice(0, 10);\n            }\n          }\n          // Opera <= 7.54u2 discards the values associated with empty string keys\n          // (`\"\"`) only if they are used directly within an object member list\n          // (e.g., `!(\"\" in { \"\": 1})`).\n          return serialize(\"\", (value = {}, value[\"\"] = source, value), callback, properties, whitespace, \"\", []);\n        };\n      }\n\n      // Public: Parses a JSON source string.\n      if (!has(\"json-parse\")) {\n        var fromCharCode = String.fromCharCode;\n\n        // Internal: A map of escaped control characters and their unescaped\n        // equivalents.\n        var Unescapes = {\n          92: \"\\\\\",\n          34: '\"',\n          47: \"/\",\n          98: \"\\b\",\n          116: \"\\t\",\n          110: \"\\n\",\n          102: \"\\f\",\n          114: \"\\r\"\n        };\n\n        // Internal: Stores the parser state.\n        var Index, Source;\n\n        // Internal: Resets the parser state and throws a `SyntaxError`.\n        var abort = function () {\n          Index = Source = null;\n          throw SyntaxError();\n        };\n\n        // Internal: Returns the next token, or `\"$\"` if the parser has reached\n        // the end of the source string. A token may be a string, number, `null`\n        // literal, or Boolean literal.\n        var lex = function () {\n          var source = Source, length = source.length, value, begin, position, isSigned, charCode;\n          while (Index < length) {\n            charCode = source.charCodeAt(Index);\n            switch (charCode) {\n              case 9: case 10: case 13: case 32:\n                // Skip whitespace tokens, including tabs, carriage returns, line\n                // feeds, and space characters.\n                Index++;\n                break;\n              case 123: case 125: case 91: case 93: case 58: case 44:\n                // Parse a punctuator token (`{`, `}`, `[`, `]`, `:`, or `,`) at\n                // the current position.\n                value = charIndexBuggy ? source.charAt(Index) : source[Index];\n                Index++;\n                return value;\n              case 34:\n                // `\"` delimits a JSON string; advance to the next character and\n                // begin parsing the string. String tokens are prefixed with the\n                // sentinel `@` character to distinguish them from punctuators and\n                // end-of-string tokens.\n                for (value = \"@\", Index++; Index < length;) {\n                  charCode = source.charCodeAt(Index);\n                  if (charCode < 32) {\n                    // Unescaped ASCII control characters (those with a code unit\n                    // less than the space character) are not permitted.\n                    abort();\n                  } else if (charCode == 92) {\n                    // A reverse solidus (`\\`) marks the beginning of an escaped\n                    // control character (including `\"`, `\\`, and `/`) or Unicode\n                    // escape sequence.\n                    charCode = source.charCodeAt(++Index);\n                    switch (charCode) {\n                      case 92: case 34: case 47: case 98: case 116: case 110: case 102: case 114:\n                        // Revive escaped control characters.\n                        value += Unescapes[charCode];\n                        Index++;\n                        break;\n                      case 117:\n                        // `\\u` marks the beginning of a Unicode escape sequence.\n                        // Advance to the first character and validate the\n                        // four-digit code point.\n                        begin = ++Index;\n                        for (position = Index + 4; Index < position; Index++) {\n                          charCode = source.charCodeAt(Index);\n                          // A valid sequence comprises four hexdigits (case-\n                          // insensitive) that form a single hexadecimal value.\n                          if (!(charCode >= 48 && charCode <= 57 || charCode >= 97 && charCode <= 102 || charCode >= 65 && charCode <= 70)) {\n                            // Invalid Unicode escape sequence.\n                            abort();\n                          }\n                        }\n                        // Revive the escaped character.\n                        value += fromCharCode(\"0x\" + source.slice(begin, Index));\n                        break;\n                      default:\n                        // Invalid escape sequence.\n                        abort();\n                    }\n                  } else {\n                    if (charCode == 34) {\n                      // An unescaped double-quote character marks the end of the\n                      // string.\n                      break;\n                    }\n                    charCode = source.charCodeAt(Index);\n                    begin = Index;\n                    // Optimize for the common case where a string is valid.\n                    while (charCode >= 32 && charCode != 92 && charCode != 34) {\n                      charCode = source.charCodeAt(++Index);\n                    }\n                    // Append the string as-is.\n                    value += source.slice(begin, Index);\n                  }\n                }\n                if (source.charCodeAt(Index) == 34) {\n                  // Advance to the next character and return the revived string.\n                  Index++;\n                  return value;\n                }\n                // Unterminated string.\n                abort();\n              default:\n                // Parse numbers and literals.\n                begin = Index;\n                // Advance past the negative sign, if one is specified.\n                if (charCode == 45) {\n                  isSigned = true;\n                  charCode = source.charCodeAt(++Index);\n                }\n                // Parse an integer or floating-point value.\n                if (charCode >= 48 && charCode <= 57) {\n                  // Leading zeroes are interpreted as octal literals.\n                  if (charCode == 48 && ((charCode = source.charCodeAt(Index + 1)), charCode >= 48 && charCode <= 57)) {\n                    // Illegal octal literal.\n                    abort();\n                  }\n                  isSigned = false;\n                  // Parse the integer component.\n                  for (; Index < length && ((charCode = source.charCodeAt(Index)), charCode >= 48 && charCode <= 57); Index++);\n                  // Floats cannot contain a leading decimal point; however, this\n                  // case is already accounted for by the parser.\n                  if (source.charCodeAt(Index) == 46) {\n                    position = ++Index;\n                    // Parse the decimal component.\n                    for (; position < length && ((charCode = source.charCodeAt(position)), charCode >= 48 && charCode <= 57); position++);\n                    if (position == Index) {\n                      // Illegal trailing decimal.\n                      abort();\n                    }\n                    Index = position;\n                  }\n                  // Parse exponents. The `e` denoting the exponent is\n                  // case-insensitive.\n                  charCode = source.charCodeAt(Index);\n                  if (charCode == 101 || charCode == 69) {\n                    charCode = source.charCodeAt(++Index);\n                    // Skip past the sign following the exponent, if one is\n                    // specified.\n                    if (charCode == 43 || charCode == 45) {\n                      Index++;\n                    }\n                    // Parse the exponential component.\n                    for (position = Index; position < length && ((charCode = source.charCodeAt(position)), charCode >= 48 && charCode <= 57); position++);\n                    if (position == Index) {\n                      // Illegal empty exponent.\n                      abort();\n                    }\n                    Index = position;\n                  }\n                  // Coerce the parsed value to a JavaScript number.\n                  return +source.slice(begin, Index);\n                }\n                // A negative sign may only precede numbers.\n                if (isSigned) {\n                  abort();\n                }\n                // `true`, `false`, and `null` literals.\n                if (source.slice(Index, Index + 4) == \"true\") {\n                  Index += 4;\n                  return true;\n                } else if (source.slice(Index, Index + 5) == \"false\") {\n                  Index += 5;\n                  return false;\n                } else if (source.slice(Index, Index + 4) == \"null\") {\n                  Index += 4;\n                  return null;\n                }\n                // Unrecognized token.\n                abort();\n            }\n          }\n          // Return the sentinel `$` character if the parser has reached the end\n          // of the source string.\n          return \"$\";\n        };\n\n        // Internal: Parses a JSON `value` token.\n        var get = function (value) {\n          var results, hasMembers;\n          if (value == \"$\") {\n            // Unexpected end of input.\n            abort();\n          }\n          if (typeof value == \"string\") {\n            if ((charIndexBuggy ? value.charAt(0) : value[0]) == \"@\") {\n              // Remove the sentinel `@` character.\n              return value.slice(1);\n            }\n            // Parse object and array literals.\n            if (value == \"[\") {\n              // Parses a JSON array, returning a new JavaScript array.\n              results = [];\n              for (;; hasMembers || (hasMembers = true)) {\n                value = lex();\n                // A closing square bracket marks the end of the array literal.\n                if (value == \"]\") {\n                  break;\n                }\n                // If the array literal contains elements, the current token\n                // should be a comma separating the previous element from the\n                // next.\n                if (hasMembers) {\n                  if (value == \",\") {\n                    value = lex();\n                    if (value == \"]\") {\n                      // Unexpected trailing `,` in array literal.\n                      abort();\n                    }\n                  } else {\n                    // A `,` must separate each array element.\n                    abort();\n                  }\n                }\n                // Elisions and leading commas are not permitted.\n                if (value == \",\") {\n                  abort();\n                }\n                results.push(get(value));\n              }\n              return results;\n            } else if (value == \"{\") {\n              // Parses a JSON object, returning a new JavaScript object.\n              results = {};\n              for (;; hasMembers || (hasMembers = true)) {\n                value = lex();\n                // A closing curly brace marks the end of the object literal.\n                if (value == \"}\") {\n                  break;\n                }\n                // If the object literal contains members, the current token\n                // should be a comma separator.\n                if (hasMembers) {\n                  if (value == \",\") {\n                    value = lex();\n                    if (value == \"}\") {\n                      // Unexpected trailing `,` in object literal.\n                      abort();\n                    }\n                  } else {\n                    // A `,` must separate each object member.\n                    abort();\n                  }\n                }\n                // Leading commas are not permitted, object property names must be\n                // double-quoted strings, and a `:` must separate each property\n                // name and value.\n                if (value == \",\" || typeof value != \"string\" || (charIndexBuggy ? value.charAt(0) : value[0]) != \"@\" || lex() != \":\") {\n                  abort();\n                }\n                results[value.slice(1)] = get(lex());\n              }\n              return results;\n            }\n            // Unexpected token encountered.\n            abort();\n          }\n          return value;\n        };\n\n        // Internal: Updates a traversed object member.\n        var update = function (source, property, callback) {\n          var element = walk(source, property, callback);\n          if (element === undef) {\n            delete source[property];\n          } else {\n            source[property] = element;\n          }\n        };\n\n        // Internal: Recursively traverses a parsed JSON object, invoking the\n        // `callback` function for each value. This is an implementation of the\n        // `Walk(holder, name)` operation defined in ES 5.1 section 15.12.2.\n        var walk = function (source, property, callback) {\n          var value = source[property], length;\n          if (typeof value == \"object\" && value) {\n            // `forEach` can't be used to traverse an array in Opera <= 8.54\n            // because its `Object#hasOwnProperty` implementation returns `false`\n            // for array indices (e.g., `![1, 2, 3].hasOwnProperty(\"0\")`).\n            if (getClass.call(value) == arrayClass) {\n              for (length = value.length; length--;) {\n                update(value, length, callback);\n              }\n            } else {\n              forEach(value, function (property) {\n                update(value, property, callback);\n              });\n            }\n          }\n          return callback.call(source, property, value);\n        };\n\n        // Public: `JSON.parse`. See ES 5.1 section 15.12.2.\n        exports.parse = function (source, callback) {\n          var result, value;\n          Index = 0;\n          Source = \"\" + source;\n          result = get(lex());\n          // If a JSON string contains multiple tokens, it is invalid.\n          if (lex() != \"$\") {\n            abort();\n          }\n          // Reset the parser state.\n          Index = Source = null;\n          return callback && getClass.call(callback) == functionClass ? walk((value = {}, value[\"\"] = result, value), \"\", callback) : result;\n        };\n      }\n    }\n\n    exports[\"runInContext\"] = runInContext;\n    return exports;\n  }\n\n  if (freeExports && !isLoader) {\n    // Export for CommonJS environments.\n    runInContext(root, freeExports);\n  } else {\n    // Export for web browsers and JavaScript engines.\n    var nativeJSON = root.JSON,\n        previousJSON = root[\"JSON3\"],\n        isRestored = false;\n\n    var JSON3 = runInContext(root, (root[\"JSON3\"] = {\n      // Public: Restores the original value of the global `JSON` object and\n      // returns a reference to the `JSON3` object.\n      \"noConflict\": function () {\n        if (!isRestored) {\n          isRestored = true;\n          root.JSON = nativeJSON;\n          root[\"JSON3\"] = previousJSON;\n          nativeJSON = previousJSON = null;\n        }\n        return JSON3;\n      }\n    }));\n\n    root.JSON = {\n      \"parse\": JSON3.parse,\n      \"stringify\": JSON3.stringify\n    };\n  }\n\n  // Export for asynchronous module loaders.\n  if (isLoader) {\n    define(function () {\n      return JSON3;\n    });\n  }\n}).call(this);\n","module.exports = toArray\n\nfunction toArray(list, index) {\n    var array = []\n\n    index = index || 0\n\n    for (var i = index || 0; i < list.length; i++) {\n        array[i - index] = list[i]\n    }\n\n    return array\n}\n","/*! https://mths.be/utf8js v2.0.0 by @mathias */\n;(function(root) {\n\n\t// Detect free variables `exports`\n\tvar freeExports = typeof exports == 'object' && exports;\n\n\t// Detect free variable `module`\n\tvar freeModule = typeof module == 'object' && module &&\n\t\tmodule.exports == freeExports && module;\n\n\t// Detect free variable `global`, from Node.js or Browserified code,\n\t// and use it as `root`\n\tvar freeGlobal = typeof global == 'object' && global;\n\tif (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal) {\n\t\troot = freeGlobal;\n\t}\n\n\t/*--------------------------------------------------------------------------*/\n\n\tvar stringFromCharCode = String.fromCharCode;\n\n\t// Taken from https://mths.be/punycode\n\tfunction ucs2decode(string) {\n\t\tvar output = [];\n\t\tvar counter = 0;\n\t\tvar length = string.length;\n\t\tvar value;\n\t\tvar extra;\n\t\twhile (counter < length) {\n\t\t\tvalue = string.charCodeAt(counter++);\n\t\t\tif (value >= 0xD800 && value <= 0xDBFF && counter < length) {\n\t\t\t\t// high surrogate, and there is a next character\n\t\t\t\textra = string.charCodeAt(counter++);\n\t\t\t\tif ((extra & 0xFC00) == 0xDC00) { // low surrogate\n\t\t\t\t\toutput.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);\n\t\t\t\t} else {\n\t\t\t\t\t// unmatched surrogate; only append this code unit, in case the next\n\t\t\t\t\t// code unit is the high surrogate of a surrogate pair\n\t\t\t\t\toutput.push(value);\n\t\t\t\t\tcounter--;\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\toutput.push(value);\n\t\t\t}\n\t\t}\n\t\treturn output;\n\t}\n\n\t// Taken from https://mths.be/punycode\n\tfunction ucs2encode(array) {\n\t\tvar length = array.length;\n\t\tvar index = -1;\n\t\tvar value;\n\t\tvar output = '';\n\t\twhile (++index < length) {\n\t\t\tvalue = array[index];\n\t\t\tif (value > 0xFFFF) {\n\t\t\t\tvalue -= 0x10000;\n\t\t\t\toutput += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);\n\t\t\t\tvalue = 0xDC00 | value & 0x3FF;\n\t\t\t}\n\t\t\toutput += stringFromCharCode(value);\n\t\t}\n\t\treturn output;\n\t}\n\n\tfunction checkScalarValue(codePoint) {\n\t\tif (codePoint >= 0xD800 && codePoint <= 0xDFFF) {\n\t\t\tthrow Error(\n\t\t\t\t'Lone surrogate U+' + codePoint.toString(16).toUpperCase() +\n\t\t\t\t' is not a scalar value'\n\t\t\t);\n\t\t}\n\t}\n\t/*--------------------------------------------------------------------------*/\n\n\tfunction createByte(codePoint, shift) {\n\t\treturn stringFromCharCode(((codePoint >> shift) & 0x3F) | 0x80);\n\t}\n\n\tfunction encodeCodePoint(codePoint) {\n\t\tif ((codePoint & 0xFFFFFF80) == 0) { // 1-byte sequence\n\t\t\treturn stringFromCharCode(codePoint);\n\t\t}\n\t\tvar symbol = '';\n\t\tif ((codePoint & 0xFFFFF800) == 0) { // 2-byte sequence\n\t\t\tsymbol = stringFromCharCode(((codePoint >> 6) & 0x1F) | 0xC0);\n\t\t}\n\t\telse if ((codePoint & 0xFFFF0000) == 0) { // 3-byte sequence\n\t\t\tcheckScalarValue(codePoint);\n\t\t\tsymbol = stringFromCharCode(((codePoint >> 12) & 0x0F) | 0xE0);\n\t\t\tsymbol += createByte(codePoint, 6);\n\t\t}\n\t\telse if ((codePoint & 0xFFE00000) == 0) { // 4-byte sequence\n\t\t\tsymbol = stringFromCharCode(((codePoint >> 18) & 0x07) | 0xF0);\n\t\t\tsymbol += createByte(codePoint, 12);\n\t\t\tsymbol += createByte(codePoint, 6);\n\t\t}\n\t\tsymbol += stringFromCharCode((codePoint & 0x3F) | 0x80);\n\t\treturn symbol;\n\t}\n\n\tfunction utf8encode(string) {\n\t\tvar codePoints = ucs2decode(string);\n\t\tvar length = codePoints.length;\n\t\tvar index = -1;\n\t\tvar codePoint;\n\t\tvar byteString = '';\n\t\twhile (++index < length) {\n\t\t\tcodePoint = codePoints[index];\n\t\t\tbyteString += encodeCodePoint(codePoint);\n\t\t}\n\t\treturn byteString;\n\t}\n\n\t/*--------------------------------------------------------------------------*/\n\n\tfunction readContinuationByte() {\n\t\tif (byteIndex >= byteCount) {\n\t\t\tthrow Error('Invalid byte index');\n\t\t}\n\n\t\tvar continuationByte = byteArray[byteIndex] & 0xFF;\n\t\tbyteIndex++;\n\n\t\tif ((continuationByte & 0xC0) == 0x80) {\n\t\t\treturn continuationByte & 0x3F;\n\t\t}\n\n\t\t// If we end up here, it’s not a continuation byte\n\t\tthrow Error('Invalid continuation byte');\n\t}\n\n\tfunction decodeSymbol() {\n\t\tvar byte1;\n\t\tvar byte2;\n\t\tvar byte3;\n\t\tvar byte4;\n\t\tvar codePoint;\n\n\t\tif (byteIndex > byteCount) {\n\t\t\tthrow Error('Invalid byte index');\n\t\t}\n\n\t\tif (byteIndex == byteCount) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Read first byte\n\t\tbyte1 = byteArray[byteIndex] & 0xFF;\n\t\tbyteIndex++;\n\n\t\t// 1-byte sequence (no continuation bytes)\n\t\tif ((byte1 & 0x80) == 0) {\n\t\t\treturn byte1;\n\t\t}\n\n\t\t// 2-byte sequence\n\t\tif ((byte1 & 0xE0) == 0xC0) {\n\t\t\tvar byte2 = readContinuationByte();\n\t\t\tcodePoint = ((byte1 & 0x1F) << 6) | byte2;\n\t\t\tif (codePoint >= 0x80) {\n\t\t\t\treturn codePoint;\n\t\t\t} else {\n\t\t\t\tthrow Error('Invalid continuation byte');\n\t\t\t}\n\t\t}\n\n\t\t// 3-byte sequence (may include unpaired surrogates)\n\t\tif ((byte1 & 0xF0) == 0xE0) {\n\t\t\tbyte2 = readContinuationByte();\n\t\t\tbyte3 = readContinuationByte();\n\t\t\tcodePoint = ((byte1 & 0x0F) << 12) | (byte2 << 6) | byte3;\n\t\t\tif (codePoint >= 0x0800) {\n\t\t\t\tcheckScalarValue(codePoint);\n\t\t\t\treturn codePoint;\n\t\t\t} else {\n\t\t\t\tthrow Error('Invalid continuation byte');\n\t\t\t}\n\t\t}\n\n\t\t// 4-byte sequence\n\t\tif ((byte1 & 0xF8) == 0xF0) {\n\t\t\tbyte2 = readContinuationByte();\n\t\t\tbyte3 = readContinuationByte();\n\t\t\tbyte4 = readContinuationByte();\n\t\t\tcodePoint = ((byte1 & 0x0F) << 0x12) | (byte2 << 0x0C) |\n\t\t\t\t(byte3 << 0x06) | byte4;\n\t\t\tif (codePoint >= 0x010000 && codePoint <= 0x10FFFF) {\n\t\t\t\treturn codePoint;\n\t\t\t}\n\t\t}\n\n\t\tthrow Error('Invalid UTF-8 detected');\n\t}\n\n\tvar byteArray;\n\tvar byteCount;\n\tvar byteIndex;\n\tfunction utf8decode(byteString) {\n\t\tbyteArray = ucs2decode(byteString);\n\t\tbyteCount = byteArray.length;\n\t\tbyteIndex = 0;\n\t\tvar codePoints = [];\n\t\tvar tmp;\n\t\twhile ((tmp = decodeSymbol()) !== false) {\n\t\t\tcodePoints.push(tmp);\n\t\t}\n\t\treturn ucs2encode(codePoints);\n\t}\n\n\t/*--------------------------------------------------------------------------*/\n\n\tvar utf8 = {\n\t\t'version': '2.0.0',\n\t\t'encode': utf8encode,\n\t\t'decode': utf8decode\n\t};\n\n\t// Some AMD build optimizers, like r.js, check for specific condition patterns\n\t// like the following:\n\tif (\n\t\ttypeof define == 'function' &&\n\t\ttypeof define.amd == 'object' &&\n\t\tdefine.amd\n\t) {\n\t\tdefine(function() {\n\t\t\treturn utf8;\n\t\t});\n\t}\telse if (freeExports && !freeExports.nodeType) {\n\t\tif (freeModule) { // in Node.js or RingoJS v0.8.0+\n\t\t\tfreeModule.exports = utf8;\n\t\t} else { // in Narwhal or RingoJS v0.7.0-\n\t\t\tvar object = {};\n\t\t\tvar hasOwnProperty = object.hasOwnProperty;\n\t\t\tfor (var key in utf8) {\n\t\t\t\thasOwnProperty.call(utf8, key) && (freeExports[key] = utf8[key]);\n\t\t\t}\n\t\t}\n\t} else { // in Rhino or a web browser\n\t\troot.utf8 = utf8;\n\t}\n\n}(this));\n","'use strict';\n\nvar alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split('')\n  , length = 64\n  , map = {}\n  , seed = 0\n  , i = 0\n  , prev;\n\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nfunction encode(num) {\n  var encoded = '';\n\n  do {\n    encoded = alphabet[num % length] + encoded;\n    num = Math.floor(num / length);\n  } while (num > 0);\n\n  return encoded;\n}\n\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nfunction decode(str) {\n  var decoded = 0;\n\n  for (i = 0; i < str.length; i++) {\n    decoded = decoded * length + map[str.charAt(i)];\n  }\n\n  return decoded;\n}\n\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nfunction yeast() {\n  var now = encode(+new Date());\n\n  if (now !== prev) return seed = 0, prev = now;\n  return now +'.'+ encode(seed++);\n}\n\n//\n// Map each character to its index.\n//\nfor (; i < length; i++) map[alphabet[i]] = i;\n\n//\n// Expose the `yeast`, `encode` and `decode` functions.\n//\nyeast.encode = encode;\nyeast.decode = decode;\nmodule.exports = yeast;\n"]}