The Tor Browser / file revision

 <!--

      Any copyright is dedicated to the Public Domain.

      http://creativecommons.org/publicdomain/zero/1.0/

 -->

 <svg xmlns="http://www.w3.org/2000/svg" version="1.1"

      onload="handleLoad(evt);">

   <title>Testcase for accessing null rootContent</title>

   <!-- From https://bugzilla.mozilla.org/show_bug.cgi?id=365611 -->

   <script type="application/ecmascript">

   <![CDATA[

 function handleLoad(event)

 {

   var root = document.removeChild(document.rootElement);

   if (document.rootElement == null) { // this shouldn't crash

     document.appendChild(root);

     document.getElementById('rect').setAttribute('fill', 'lime');

   }

 }

   ]]>

   </script>

   <rect id="rect" width="100%" height="100%" fill="red"/>

 </svg>