the js version does something like

  setInterval(function(){
    var i = new Image();
    i.src = target + randId + msg;
    ... // event handling
  }, 0)

so you end up requesting an url every 0 ms the randId is just a simple `Date.now`, the message is an actual message taken from an input in the html. Source code: http://hastebin.com/gasitinafo.js