CORS PUT：在jQuery.ajax中找不到 [英] CORS PUT: Not found with jQuery.ajax

问题描述

我想向我的子域发送一些原始数据：

  $。ajax（{
 url ：http://accounts.example.com:3000/me，
 type：PUT，
 data：{wabo：chabo}，
 dataType：json ，
 xhrFields：{
 withCredentials：true 
} 
}）; 
  

浏览器现在发送两个请求：

1. 对accounts.example.com:3000/me的选项检查CORS标头是否有效


2. 输入发送数据

第一个失败，HTTP 404未找到。
CORS repsonse标头看起来有效：

  HTTP / 1.1 404未找到
 X-Powered- ：Express 
 Access-Control-Allow-Origin：http://node.example.com:3000 
 Access-Control-Allow-Methods：HEAD，GET，POST，PUT，DELETE，OPTIONS 
 Access-Control-Allow-Headers：Content-Type，X-Requested-With，Origin，Accept 
 Access-Control-Allow-Credentials：true 
 Content-Type：text / plain 
 Set-Cookie：connect.sid = s％3Aru8njoU2ZAnoKL2W2w％2B0BHF7。％2Fe％2FQI5f6NKRWQvWlcYEkMG7HHSxxj0haFDBUID2g45A; Domain = .example.com; Path = / 
日期：Sun，04 Nov 2012 11:31:22 GMT 
连接：keep-alive 
传输编码：分块
  / pre> 
 
 
在我的节点环境的app.js中，我有：
  app.all（'*'，function（req，res，next）{
 res.header（'Access-Control-Allow-Origin'，'http://node.example.com:3000' ）; 
 res.header（'Access-Control-Allow-Methods'，'HEAD，GET，POST，PUT，DELETE，OPTIONS' （'Access-Control-Allow-Credentials'，'true'）; 
 next（））; 
 res.header ; 
}）; 
  
和
  var me = require（'./ me'）; 
 app.get（'/ me'，loadUser，me.show）; 
 app.put（'/ me'，loadUser，me.update）; 
 
从子域获取数据没有问题，只发送
任何想法我忘记了什么？ 
 
 
 
请注意，bodo 
解决方案
 > 
 
 
  app.all（'*'，function（req，res，next）{
 res.header -Allow-Origin'，'http://node.example.com:3000'）; 
 res.header（'Access-Control-Allow-Methods'，'HEAD，GET，POST，PUT，DELETE， （'Access-Control-Allow-Headers'，'Content-Type，X-Requested-With，Origin，Accept'）; 
 res.header控制允许证书'，'true'）; 
 
 if（req.method.toLowerCase（）===options）{
 res.send（200）; 
} 
 else {
 next（）; 
} 
}）; 
  
 
I want to send some raw data to a subdomain of mine:
$.ajax({
    url: "http://accounts.example.com:3000/me",
    type: "PUT",
    data: { wabo: "chabo" },
    dataType: "json",
    xhrFields: {
        withCredentials: true
    }
});
The browser now sends two requests:

OPTIONS to accounts.example.com:3000/me to check if CORS headers are valid
PUT to send data
The first one fails with HTTP 404 Not Found.
The CORS repsonse header looks valid:
HTTP/1.1 404 Not Found
X-Powered-By: Express
Access-Control-Allow-Origin: http://node.example.com:3000
Access-Control-Allow-Methods: HEAD, GET, POST, PUT, DELETE, OPTIONS
Access-Control-Allow-Headers: Content-Type, X-Requested-With, Origin, Accept
Access-Control-Allow-Credentials: true
Content-Type: text/plain
Set-Cookie: connect.sid=s%3Aru8njoU2ZAnoKL2W2w%2B0BHF7.%2Fe%2FQI5f6NKRWQvWlcYEkMG7HHSxxj0haFDBUID2g45A; Domain=.example.com; Path=/
Date: Sun, 04 Nov 2012 11:31:22 GMT
Connection: keep-alive
Transfer-Encoding: chunked
In app.js of my node environment I have:
app.all('*', function(req, res, next) {
    res.header('Access-Control-Allow-Origin', 'http://node.example.com:3000');
    res.header('Access-Control-Allow-Methods', 'HEAD, GET, POST, PUT, DELETE, OPTIONS');
    res.header('Access-Control-Allow-Headers', 'Content-Type, X-Requested-With, Origin, Accept');
    res.header('Access-Control-Allow-Credentials', 'true');
    next();
});
and 
var me = require('./me');
app.get('/me', loadUser, me.show);
app.put('/me', loadUser, me.update);
GETting data from the subdomain is no problem only sending
Any idea what I have forgotten?

Regards, bodo
解决方案
Try this instead:
app.all('*', function(req, res, next) {
    res.header('Access-Control-Allow-Origin', 'http://node.example.com:3000');
    res.header('Access-Control-Allow-Methods', 'HEAD, GET, POST, PUT, DELETE, OPTIONS');
    res.header('Access-Control-Allow-Headers', 'Content-Type, X-Requested-With, Origin, Accept');
    res.header('Access-Control-Allow-Credentials', 'true');

    if( req.method.toLowerCase() === "options" ) {
        res.send( 200 );
    }
    else {
        next();
    }
});


                        
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