socket.io - can't get it to work, having 404's on some kind of polling call

It looks like Socket.IO can't intercept requests starting with /socket.io/. This is because in your case the listener is app -- an Express handler. You have to make http be listener, so that Socket.IO will have access to request handling.

Try to replace

app.set( "ipaddr", "127.0.0.1" );app.set( "port", 8080 );

with

http.listen(8080, "127.0.0.1");

See docs for details: http://socket.io/docs/#using-with-express-3/4

In my case, I created my app with the Express application generator. To solve this problem, instead of edit the app.js file on the root folder of the project, I edited the file bin/www on the line after the server is defined:

/** * Create HTTP server. */var server = http.createServer(app);var io = require('socket.io')(server); // Add this here

Update

I found a better way here Express Generator and Socket.io

Just for check that is your server or just client problem you could use this web: websocket-echo, if this client connect right to your server (the first form client is usefull if your server is online, if is on your host, cuoting from websocket.org...

Using a text editor, copy the following code and save it as websocket.html somewhere on your hard drive

Code: websocket-test

The only thing different from mine that i could observe is the io client source: <script src="/socket.io/socket.io.js"></script> on your client side.

On your server you should try this way:

var express = require('express'), app = express(),http = require('http'),server = http.createServer(app),io = require('socket.io').listen(server),exec = require('child_process').exec,util = require('util');//serve our codeapp.use(express.static('public'));app.use(express.json());app.use(express.urlencoded());//listening on connectionsio.on('connection', function (socket) {    console.log('client connected!'); }server.listen(8080);

Note that this way works fine with this dependencies:I recommend you add this code below to your package.json file:

"dependencies": {    "express": "3.x.x",    "socket.io": "*",    "util": "*"  }

cheers!