Question

我试图允许其他主机（本地主机，如javascript.dev）向该主机发送xhr，它是一个IIS7，如果我curl -I它，这是头：

HTTP/1.1 200 OK
Content-Length: 0
Content-Type: text/html; charset=UTF-8
Server: Microsoft-IIS/7.0
X-Powered-By: PHP/5.3.28
Access-Control-Allow-Origin: *
Access-Control-Allow-Methods: GET, PUT, POST, DELETE, OPTIONS
Access-Control-Max-Age: 1000
Access-Control-Allow-Headers: *
X-Powered-By: ASP.NET
Date: Fri, 20 Jun 2014 12:09:33 GMT

这是curl -v -X OPTIONS的标题：

* About to connect() to www2.xxxxxxxxxxxx.com.br port 80 (#0)
*   Trying 200.98.xxx.100...
* Connected to www2.xxxxxxxxxxxx.com.br (200.98.xxx.100) port 80 (#0)
> OPTIONS /jobs/xxxxxxx/user/ HTTP/1.1
> User-Agent: curl/7.30.0
> Host: www2.xxxxxxxxxxxx.com.br
> Accept: */*
> 
< HTTP/1.1 200 OK
< Allow: OPTIONS, TRACE, GET, HEAD, POST
* Server Microsoft-IIS/7.0 is not blacklisted
< Server: Microsoft-IIS/7.0
< Public: OPTIONS, TRACE, GET, HEAD, POST
< X-Powered-By: ASP.NET
< Date: Fri, 20 Jun 2014 13:01:25 GMT
< Content-Length: 0

我使用php来更改Access-Control-Allow-Origin，但是当我使用xhr时，无论是否有jquery，这都是我得到的错误：

XMLHttpRequest cannot load http://www2.xxxxxxxx.com.br/jobs/xxxxxx/user/. 
No 'Access-Control-Allow-Origin' header is present on the requested resource. 
Origin 'http://javascript.dev' is therefore not allowed access.

要记录，我要解决的其他步骤：

我将上面的答案中的代码添加到我的web.config中并收到此错误：

XMLHttpRequest cannot load http://www2.madeinweb.com.br/jobs/eminhasaude/user. 
Request header field Content-Type is not allowed by Access-Control-Allow-Headers.

因为Access-Control-Allow-Headers不接受通配符*。解决：

<add name="Access-Control-Allow-Headers" value="Origin, X-Requested-With, Content-Type, Accept" />

Answer 1

根据评论，在提交OPTIONS请求时，您似乎错过了Access-Control-Allow-Origin标头。根据{{3}}文章，它应该是一个简单的例子，将以下代码添加到PHP页面......

<?php
header('Access-Control-Allow-Origin: *');
?>

如果仍然无效，那么您应该检查PHP的IIS处理程序映射（请参阅this）并确保OPTIONS是允许的动词。希望能做到这一点！

here文章还表明您可以完全跳过修改PHP，只需将以下内容添加到您的web.config中：

<system.webServer>
  <httpProtocol>
    <customHeaders>
      <add name="Access-Control-Allow-Origin" value="*" />
      <add name="Access-Control-Allow-Headers" value="*" />
      <add name="Access-Control-Allow-Methods" value="GET, PUT, POST, DELETE, OPTIONS" />
      <add name="Access-Control-Max-Age" value="1000" />
    </customHeaders>
  </httpProtocol>
</system.webServer>

请注意，这将打开整个网站，而不仅仅是一个页面......

CORS，IIS7和PHP - Access-Control-Allow-Origin错误

1 个答案: