我有一个具有以下细分的网站:
api.example.com
developers.example.com
example.com
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我想同时允许example.com并developers.example.com做出AJAX请求api.example.com。
到目前为止api.example.com,我的 nginx 配置(由 unicorn 提供的 Rack 应用程序)如下所示:
upstream app_server {
server unix:/tmp/api.example.com.sock fail_timeout=0;
}
server {
listen 80;
server_name api.example.com;
access_log /home/nginx/api.example.com/log/access.log;
error_log /home/nginx/api.example.com/log/error.log;
location / {
add_header 'Access-Control-Allow-Origin' 'http://example.com,http://developers.example.com';
add_header 'Access-Control-Allow-Credentials' 'true';
add_header 'Access-Control-Allow-Headers' 'Content-Type,Accept';
add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS, PUT, DELETE';
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $http_host;
proxy_redirect off;
proxy_pass http://app_server;
}
}
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根据我的阅读,这应该足以满足我正在尝试做的事情。
该选项的回应:
HTTP/1.1 200 OK
Server: nginx/0.7.67
Date: Sat, 28 Apr 2012 17:20:08 GMT
Content-Type: application/json
Connection: close
Status: 200 OK
Content-Length: 0
Access-Control-Allow-Origin: http://developers.example.com,http://example.com
Access-Control-Allow-Credentials: true
Access-Control-Allow-Headers: Content-Type,Accept
Access-Control-Allow-Methods: GET, POST, OPTIONS, PUT, DELETE
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但是当我在 Chrome 控制台中尝试以下操作时:
$.ajax("http://api.example.com", {
type: 'get',
contentType: "application/json",
accept: "application/json"
}).success(function(data){
console.log("success!", data);
}).fail(function(jqxhr, statusText){
console.log("fail!", jqxhr, statusText);
})
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我懂了:
XMLHttpRequest cannot load http://api.example.com/. Origin
http://developers.example.com is not allowed by Access-Control-Allow-Origin.
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我错过了什么?
如果我设置Access-Control-Allow-Origin为*然后我看到:
HTTP/1.1 200 OK
Server: nginx/0.7.67
Date: Sat, 28 Apr 2012 17:28:41 GMT
Content-Type: application/json
Connection: close
Status: 200 OK
Content-Length: 0
Access-Control-Allow-Origin: *
Access-Control-Allow-Headers: Content-Type,Accept
Access-Control-Allow-Methods: GET, POST, OPTIONS, PUT, DELETE
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但是 jQuery 请求仍然失败,chrome 还突出显示预飞行OPTIONS失败(即使它返回了200 OK)。
mgo*_*ven 18
根据CORS 规范,多个来源应该用空格分隔,而不是像您使用的那样用逗号分隔,因此请尝试发送此标头:
Access-Control-Allow-Origin: http://developers.example.com http://example.com
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在Mozilla的文件没有提及多起源的,所以如果仍然无法正常工作只尝试发送:
Access-Control-Allow-Origin: http://developers.example.com
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如果可行,您需要配置 nginx 或您的应用程序服务器以返回一个Access-Control-Allow-Origin包含Origin客户端发送的标头值的标头(如果它与允许列表匹配)。类似以下(未经测试)的 nginx 配置可以做到这一点:
if ($http_origin ~ "^(http://developers.example.com|http://example.com)$") {
add_header "Access-Control-Allow-Origin" $http_origin;
}
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