Socket.io 400 (Bad Request)

I have this piece of code on my server ``` var express = require('express'); var routes = require('./routes'); var user = require('./routes/user'); var http = require('http'); var path = require('path'); var app = express(); var server = require('http').Server(app); var io = require('socket.io')(server); server.listen(3000); io.sockets.on('connection', function (socket) { console.log("Socket connected"); }); ``` I just want to create a connection and on the client - ``` <script src="public/javascripts/socket.io.js"></script> <script> var socket = io.connect('http://127.0.0.1:3000'); </script> ``` And when I open my browser I get this error in console: ``` GET http://127.0.0.1:3000/socket.io/1/?t=1404410309733 400 (Bad Request) socket.io.js:1659 XHR finished loading: GET "http://127.0.0.1:3000/socket.io/1/?t=1404410309733". ``` I've already done this like 10 times and I never get this. Does anyone know how to fix it?