From b75369c1a013b504289aac6bbd3ab187ad9c054f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E4=BB=BB=E7=BE=BD=E9=A3=9E?= <ren12345@126.com>
Date: Fri, 16 Dec 2016 15:17:46 +0800
Subject: [PATCH] fix unsafe header

It will throw exception when call `.setHeader` manauly.
---
 lib/request.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/request.js b/lib/request.js
index 7b8b733..afbb442 100644
--- a/lib/request.js
+++ b/lib/request.js
@@ -77,6 +77,7 @@ var Request = module.exports = function (xhr, params) {
 inherits(Request, Stream);
 
 Request.prototype.setHeader = function (key, value) {
+    if (!this.isSafeRequestHeader(key)) return;
     this._headers[key.toLowerCase()] = value
 };