The Tor Browser / file revision

 <?xml version="1.0" encoding="Windows-1252"?>

 <!--

      Any copyright is dedicated to the Public Domain.

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

 -->

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

      xmlns:xlink="http://www.w3.org/1999/xlink"

      style="background: red;" class="reftest-wait">

   <defs>

      <symbol id="sym1">

        <rect width="100" height="100" fill="lime" />

     </symbol>

   </defs>

   <rect width="100%" height="100%" fill="lime"/>

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

   <use id="u" xlink:href="#sym1" width="1" />

   <script type="text/javascript">

     <![CDATA[

     document.addEventListener("MozReftestInvalidate", doTest, false);

     setTimeout(doTest, 4000); // fallback for running outside reftest

     function doTest() {

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

         u.setAttribute("width", "100");

         document.documentElement.removeAttribute('class');

       }

     ]]>

 </script>

 </svg>