CORS 和 Access-Control-Allow-Headers 是如何工作的?

How do CORS and Access-Control-Allow-Headers work?(CORS 和 Access-Control-Allow-Headers 是如何工作的?)

问题描述

我正在尝试将 CORS 请求从 domain.com 发送到 a.domain.com.

I'm trying to make CORS request POST from domain.com to a.domain.com.

我的 javascript 看起来像这样

My javascript looks like this

$('#fileupload').fileupload({
  xhrFields: {
    withCredentials: true
  },
  dataType: 'json',
  url: $('#fileupload').data('path'),
  singleFileUploads: true,
  add: function(e, data){
    data.submit();
  }
});

起初我看到 OPTIONS 路由是这样调用的:

At first I see the OPTIONS route being called like so:

Request URL: https://a.domain.com/some/route
Request Method:OPTIONS
Status Code:200 OK

选项请求:

Access-Control-Request-Headers:origin, content-type, accept
Access-Control-Request-Method:POST
Host:a.domain.com
Origin:http://domain.com:3000
Referer:http://domain.com:3000/home

选项响应

Access-Control-Allow-Credentials:true
Access-Control-Allow-Methods:POST
Access-Control-Allow-Origin:http://domain.com:3000
Connection:keep-alive
Content-Length:0
Content-Type:text/html;charset=utf-8

该请求返回 200 个类似声明.在我的服务器上，我与 POST 方法具有相同的路由，这就是我在 OPTIONS

That request comes back with a 200 like stated. On my server, I have the same route with POST method and this is what I get in return after the OPTIONS

Request URL:https://a.domain.com/some/route

发布请求

Content-Type:multipart/form-data; boundary=----WebKitFormBoundaryjwr5Pk7WBcfzMdbO
Origin:http://domain.com:3000
Referer:http://domain.com:3000/home

POST 请求被取消/失败.

我的问题是，我是否也需要在 POST 控制器上设置 access-control-allow-origin ?

My question is, do I need to have the access-control-allow-origin on the POST controller as well?

我有一个用于授权的 cookie，该 cookie 具有域 .domain.com，该 cookie 在请求中发送过一次，现在没有发送.知道为什么会这样吗?

I have a cookie for authorization that has domain .domain.com that cookie got sent across once in a request and it's not being sent now. Any idea why that would happen?

推荐答案

是的，你需要有 header Access-Control-Allow-Origin: http://domain.com:3000 或者Access-Control-Allow-Origin: * 在 OPTIONS 响应和 POST 响应中.您还应该在 POST 响应中包含标题 Access-Control-Allow-Credentials: true.

Yes, you need to have the header Access-Control-Allow-Origin: http://domain.com:3000 or Access-Control-Allow-Origin: * on both the OPTIONS response and the POST response. You should include the header Access-Control-Allow-Credentials: true on the POST response as well.

您的 OPTIONS 响应还应包含标头 Access-Control-Allow-Headers: origin, content-type, accept 以匹配请求的标头.

Your OPTIONS response should also include the header Access-Control-Allow-Headers: origin, content-type, accept to match the requested header.

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