<html xmlns="http://www.w3.org/1999/xhtml">
<script>
function overwrite() {
    var testRunner = window.parent.testRunner;
    window.frameElement.outerHTML = "PASS (no crash)";
    if (testRunner)
        testRunner.notifyDone();
}

document.addEventListener("DOMCharacterDataModified", overwrite);
</script>
</html>