anchor.diff:        var testing_window;
   
         var embedded_iframe = document.getElementById('embedded_iframe');
  +      var number_div = document.getElementById('number');
  +      var executing_div = document.getElementById('currently_executing');
  +      var error_div = document.getElementById('unhandled_error');
         var use_iframe = ${useIframe};
         var start = new Date();
   
  
positive.code:   </script>
  </head>
    <body onload="startTesting()">
      Dart test driver, number of tests: <div id="number"></div>
      <iframe id="embedded_iframe"></iframe>
    </body>
  </html>
  
negative.code:       function reportError(msg) {
          function handleReady() {
            if (this.readyState == this.DONE && this.status != 200) {
              var error = 'Sending back error did not succeeed: ' + this.status;
              error = error + '. Failed to send msg: ' + msg;
              error_div.innerHTML = error;
            }
          }
          contactBrowserController(
  