socket.io transport tracing

app.js

process.env['NODE_ENV'] = 'production';
var app = require('http').createServer(handler)
  , io = require('socket.io').listen(app)
  , fs = require('fs')

app.listen(80);

function handler (req, res) {
  fs.readFile(__dirname + '/index.html',
  function (err, data) {
    if (err) {
      res.writeHead(500);
      return res.end('Error loading index.html');
    }

    res.writeHead(200);
    res.end(data);
  });
}

io.configure('production', function() {
  console.log('prod!');
  io.set('transports', ['websocket', 'flashsocket', 'xhr-polling', 'jsonp-polling']);
  io.set('log level', 1);
});
io.sockets.on('connection', function (socket) {
  socket.emit('news', { hello: 'world' });
  socket.on('my other event', function (data) {
    console.log(data);
  });
});

index.html

<script src="/socket.io/socket.io.js"></script>
<script>
  var socket = io.connect("your_host_here");
  socket.on('news', function (data) {
    socket.emit('my other event', { ua: window.navigator.userAgent, transport: socket.socket.transport.name });
  });
</script>