我试图使用一个Access-Control-Allow-Origin头来响应HTTP OPTIONS方法,并将请求中的Origin头的内容复制到该头中。
显然,这并没有起作用,原因我无法确定。
tl;dr: OPTIONS方法的响应显示:
Access-Control-Allow-Origin: http://10.0.0.105:9294
后续的GET请求具有:
Origin:http://10.0.0.105:9294
Chrome说:
Origin http://10.0.0.105:9294 is not allowed by Access-Control-Allow-Origin
这是什么意思?
更多细节...
通过查看Chrome的开发者工具窗口,请求头如下:
OPTIONS /user/kris HTTP/1.1
Host: 10.0.0.104:8080
Connection: keep-alive
Access-Control-Request-Method: GET
Origin: http://10.0.0.105:9294
User-Agent: Mozilla/5.0 (X11; Linux i686) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/21.0.1180.75 Safari/537.1
Access-Control-Request-Headers: origin, x-requested-with, content-type, accept
Accept: */*
Referer: http://10.0.0.105:9294/
Accept-Encoding: gzip,deflate,sdch
Accept-Language: en-GB,en-US;q=0.8,en;q=0.6
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3
响应头如下:
HTTP/1.0 200 OK
Date: Mon, 13 Aug 2012 11:23:45 GMT
Server: WSGIServer/0.1 Python/2.7.3
Content-Length: 0
Access-Control-Allow-Methods: GET, PUT, POST, DELETE, HEAD, OPTIONS
Access-Control-Max-Age: 10
Access-Control-Allow-Origin: http://10.0.0.105:9294
Access-Control-Allow-Headers: X-Requested-With, Authorization, X-Huzu-User, Content-Type, Accept
Content-Type: text/html; charset=UTF-8
在 jQuery 发送 OPTIONS 请求并获得上述响应后,会发生两件奇怪的事情。 OPTIONS 响应(即 200)会显示为错误。
OPTIONS http://10.0.0.104:8080/user/kris 200 (OK)
此后GET请求被拒绝。控制台中显示错误:
XMLHttpRequest cannot load http://10.0.0.104:8080/user/kris. Origin http://10.0.0.105:9294 is not allowed by Access-Control-Allow-Origin.
我看不出为什么不行。我做错了什么吗?