<html>
  <body>
    <script>    
      if (window.testRunner) {
        window.testRunner.dumpAsText();
        window.testRunner.waitUntilDone();
      }

      function test() {
        document.designMode = 'on';
        document.execCommand("selectAll");
        document.execCommand("InsertHTML", false, "<p>No crash!</p>");
        document.execCommand("InsertHTML", false, "<span class='Apple-style-span'></span>");
        
        if (window.testRunner)
          testRunner.notifyDone();
      }
      setTimeout(test);
    </script>&lt;
  </body>
</html>