sockjs (client side)

sockjs:createClient

<script src="http://cdn.sockjs.org/sockjs-0.3.min.js"></script>
<script>
   var sock = new SockJS('http://mydomain.com/my_prefix');
   sock.onopen = function() {
       console.log('open');
   };
   sock.onmessage = function(e) {
       console.log('message', e.data);
   };
   sock.onclose = function() {
       console.log('close');
   };
</script>