<html xmlns="http://www.w3.org/1999/xhtml" style="columns: 2 auto;" class="reftest-wait">
  <head>
    <script>

function test() { 
  var r = document.documentElement; 
  document.removeChild(r); 
  document.appendChild(r); 
  document.documentElement.removeAttribute("class");
}

    </script>
  </head>
  <body style="filter:url(#f);" onload="setTimeout(test, 0);">
    <div>
    </div>
    <svg xmlns="http://www.w3.org/2000/svg">
      <filter id="f"/>
    </svg>
  </body>
</html>