CORS被node.js和socket.io阻塞

时间：2022-03-10 23:56:25

I recently started learning node.js and socket.io. I followed a simple tutorial that socket.io had and it all worked fine while running on my computer. However, I decided to upload the client part to a server for testing and that is where the problems began. I would like to run the chat client on a web host, and run the server on my computer, or another host. Basically, I plan on port forwarding the server, and having the client run on a web page. I opened my port to port forward and it seems to be working, however I am getting the error on the web page every time.

我最近开始学习node.js和socket.io。我遵循了socket.io的一个简单教程,在我的计算机上运行时一切正常。但是,我决定将客户端部件上传到服务器进行测试,这就是问题的开始。我想在Web主机上运行聊天客户端,并在我的计算机或其他主机上运行服务器。基本上,我计划在端口转发服务器,并让客户端在网页上运行。我打开我的端口向前移动它似乎正在工作,但我每次都在网页上收到错误。

Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at http://24.151.51.34:3000/socket.io/?EIO=3&transport=polling&t=1437399007343-0. (Reason: CORS request failed).

I've been messing around with the code in hopes of finding a solution to this problem before starting my own project, however I can't figure out a way. The client code is :

我一直在搞乱代码,希望在开始我自己的项目之前找到解决这个问题的方法,但是我无法找到方法。客户端代码是:

<!doctype html>
<html>
  <head>
    <title>Socket.IO chat</title>
    <style>
      * { margin: 0; padding: 0; box-sizing: border-box; }
      body { font: 13px Helvetica, Arial; }
      form { background: #000; padding: 3px; position: fixed; bottom: 0; width: 100%; }
      form input { border: 0; padding: 10px; width: 90%; margin-right: .5%; }
      form button { width: 9%; background: rgb(130, 224, 255); border: none; padding: 10px; }
      #messages { list-style-type: none; margin: 0; padding: 0; }
      #messages li { padding: 5px 10px; }
      #messages li:nth-child(odd) { background: #eee; }
    </style>
  </head>
  <body>
    <ul id="messages"></ul>
    <form action="">
      <input id="m" autocomplete="off" /><button>Send</button>
    </form>
    <script src="https://cdn.socket.io/socket.io-1.2.0.js"></script>
    <script src="http://code.jquery.com/jquery-1.11.1.js"></script>
    <script>
      var socket = io('24.151.51.34:3000');
      $('form').submit(function(){
        socket.emit('chat message', $('#m').val());
        $('#m').val('');
        return false;
      });
      socket.on('chat message', function(msg){
        $('#messages').append($('<li>').text(msg));
      });
    </script>
  </body>
</html>

For the server code I tried to add code to allow CORS but really not sure what to do :

对于服务器代码,我尝试添加代码以允许CORS,但实际上不确定该怎么做:

var app = require('express')();
var http = require('http').Server(app);
var io = require('socket.io')(http);

io.set('origins', 'http://browsercombat.com:80');

app.use(function(req, res, next) {
    res.header("Access-Control-Allow-Origin", "*");
    res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
    res.header("Access-Control-Allow-Methods", "POST, GET, PUT, DELETE, OPTIONS");
    res.header("Access-Control-Allow-Credentials", "true");
    next();
});

app.get('/', function(req, res, next) {
    res.sendFile(__dirname + '/index.html');
});

app.post('/', function(req, res, next) {
    // Handle the post for this route
});

io.on('connection', function(socket){
  socket.on('chat message', function(msg){
    io.emit('chat message', msg);
  });
});

http.listen(3000, function(){
  console.log('listening on *:3000');
});

1 个解决方案

#1

1  

I managed to solve the problem by using this CORS middle ware someone recommended me and checking my firewall settings. https://www.npmjs.com/package/cors

我设法通过使用这个CORS中间件有人推荐我并检查我的防火墙设置来解决问题。 https://www.npmjs.com/package/cors

#1

1  

I managed to solve the problem by using this CORS middle ware someone recommended me and checking my firewall settings. https://www.npmjs.com/package/cors

我设法通过使用这个CORS中间件有人推荐我并检查我的防火墙设置来解决问题。 https://www.npmjs.com/package/cors

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