<html>This test passes if a malformed html document triggers an error, not crash.
  <svg xmlns="http://www.w3.org/2000/svg"
      xmlns:xlink="http://www.w3.org/1999/xlink"
      onload="restyle()">
    <script>
    if (window.testRunner)
        testRunner.dumpAsText();
    function restyle() {
        document.getElementById("b").style.position = "absolute";
    }
    </script>
    <defs>
        <g id="a" />
    </defs>
    <g id="b">
        <use xlink:href="#a" />
    </g>
  </svg>