Reproduction of 3G WebSocket proxy bug. See too: http://stackoverflow.com/questions/5574385/websockets-on-ios

client.js

/**
 * This will work as it should when testing over WiFi.
 * However if you test this through 3G (or another proxy?) then we fail...
 */
var ws = new WebSocket('ws://yourdomain');

server.js

var http = require('http');

var server = http.createServer();

server.addListener('request', function(request, response) {
    console.log(request.headers);
    
    response.end();
});

server.addListener('upgrade', function(request, response) {
    console.log(request.headers);
    
    response.end();
});

server.listen(80);