<!DOCTYPE html>
<html>
<head>
<script type="text/javascript">

function boom()
{
  var table = document.createElement("table");
  document.body.appendChild(table);
  table.contentEditable = "true";
  table.focus();
  try {
    // This will throw, since it's attempting to inject a list inside a table
    document.execCommand("insertunorderedlist", false, null);
  } catch (e) {}
}

</script>
</head>

<body onload="boom();"></body>
</html>
