The Tor Browser / file revision

 <svg xmlns="http://www.w3.org/2000/svg" class="reftest-wait"><script><![CDATA[

 function init()

 {

   var div2 = document.getElementById("div2");

   var div1 = document.getElementById("div1");

   var docElt = document.documentElement;

   var titleText = document.createTextNode("foo baz");

   docElt.appendChild(div2);

   div2.appendChild(titleText);

   function second () 

   {

     div2.appendChild(div1);

     removeNode(titleText);

     removeNode(div2);

     document.documentElement.removeAttribute("class");

   }

   setTimeout(second, 30);

 }

 function removeNode(q1) { q1.parentNode.removeChild(q1); }

 setTimeout(init, 30);

 ]]></script>

 <div xmlns='http://www.w3.org/1999/xhtml' id="div1">

 <div id="div2">bar</div>

 </div>

 </svg>