From b969ecf223d52ec2ea21118a232a88b5ec745992 Mon Sep 17 00:00:00 2001
From: Yazhong Liu <l900422@vip.qq.com>
Date: Sat, 3 May 2014 02:56:08 +0800
Subject: [PATCH] request: complete idempotent methods see rfc2616:
 http://www.w3.org/Protocols/rfc2616/rfc2616-sec9.html#sec9.1.

Intact idempotent HTTP methods should be:
GET, HEAD, PUT, DELETE, OPTIONS and TRACE
---
 lib/request.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/request.js b/lib/request.js
index 34ec754..7c27901 100644
--- a/lib/request.js
+++ b/lib/request.js
@@ -259,8 +259,8 @@ module.exports = {
    */
 
   get idempotent() {
-    return 'GET' == this.method
-      || 'HEAD' == this.method;
+    var idempotents = ['GET','HEAD','PUT','DELETE','OPTIONS','TRACE'];
+    return idempotents.indexOf(this.method) !== -1;
   },
 
   /**