CORS预检通道没有成功

我试图使用PHP REST框架构建一个Ember应用程序作为我的本地api。 Ember应用程序在 http：// localhost：4200 上提供，而api仅从 http：// localhost 。这导致CORS问题。我尝试了所有我能想到的，但我不断收到一个错误，说要求被阻止，并且预检通道没有成功。

I'm trying to build a Ember app with PHP REST framework as my api locally. The Ember app is being served at http://localhost:4200 and the api is being served from just http://localhost. This is causing a CORS issue. I've tried everything that I can think of, but I keep getting an error back saying the request was blocked and that the preflight channel did not succeed. It doesn't succeed in Firefox or Chrome.

我已将以下内容添加到 .htaccess 文件中我的API：

I've added the following to the .htaccess file for my api:

Header set Access-Control-Allow-Methods "GET, POST, OPTIONS"
Header set Access-Control-Allow-Origin "http://localhost:4200"
Header set Access-Control-Allow-Credentials true
Header set Access-Control-Allow-Headers "accept, content-type"

这是我的请求标头：

Host: localhost
User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:39.0) Gecko/20100101 Firefox/39.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Origin: http://localhost:4200
Access-Control-Request-Method: POST
Access-Control-Request-Headers: content-type
Connection: keep-alive
Pragma: no-cache
Cache-Control: no-cache

：

Access-Control-Allow-Credentials: true
Access-Control-Allow-Headers: accept, content-type
Access-Control-Allow-Methods: GET, POST, OPTIONS
Access-Control-Allow-Origin: http://localhost:4200
Connection: close
Content-Type: text/html; charset=utf-8
Date: Fri, 24 Jul 2015 17:10:49 GMT
Server: Apache/2.4.9 (Win64) PHP/5.5.12
Set-Cookie: 24fd751c8630b64fcf935a94e8bcef46=qih6pfnqo94d4cgi5b5d79h4i6; path=/
Transfer-Encoding: chunked
X-Powered-By: PHP/5.5.12
p3p: CP="NOI ADM DEV PSAi COM NAV OUR OTRo STP IND DEM"

任何想法或解决方案？任何帮助是赞赏。感谢！

Any ideas or solutions? Any help is appreciated. Thanks!