Socket.io不设置CORS头 [英] Socket.io doesn't set CORS header(s)

问题描述

我知道这个问题已被问过几次。

但是，我无法获得任何解决方案。

I运行node.js和socket.io的标准安装。 （从Amazon EC2上的yum）

问题是Chrome正在回退到xhr轮询，这些请求需要一个可用的CORS配置。但是，我似乎不能让它工作。我的web服务器运行在端口80，node.js（socket.io）运行在端口81.我试图让socket.io使用源策略，你可以看到。我也尝试使用*：*作为没有运气的原点。

这是我的代码：

I know this question has been asked a couple of times.
However, I can't get any those solutions to work.
I'm running a standard install of node.js and socket.io. (From yum on Amazon EC2)
The problem is that Chrome is falling back to xhr polling, and those requests require a working CORS configuration. However, I can't seem to get it to work. My web server is running on port 80, and node.js(socket.io) is running on port 81. I have tried to get socket.io to use a origin policy as you can see. I have also tried to use "* : *" as origin with no luck.
Here's my code:

var http = require('http');
var io = require('socket.io').listen(81, {origins: '*'});

io.configure( function(){
    io.set('origin', '*');
});
io.set("origins","*");

var server = http.createServer(function(req, res) {
    io.sockets.emit("message", "test");
res.writeHead(200);
    res.end('Hello Http');
    console.log("Message recieved!");
});
server.listen(82);

io.sockets.on('connection', function(client)  {
    console.log("New Connection");
});

非常感谢！

推荐答案

这是我必须使用的语法CORS使用socket.io：

This is the syntax I had to use to get CORS working with socket.io:

io.set( 'origins', '*domain.com*:*' );

如果涉及到它，请使用 console.log 以确保您在 Manager.prototype.handleHandshake 内部中输入此代码块./ lib / manager.js ：

If it comes to it, use console.log to make sure you're entering this block of code in Manager.prototype.handleHandshake inside ./lib/manager.js:

 if (origin) {
    // https://developer.mozilla.org/En/HTTP_Access_Control
    headers['Access-Control-Allow-Origin'] = '*';

    if (req.headers.cookie) {
      headers['Access-Control-Allow-Credentials'] = 'true';
    }
  }

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