<script>
    if (window.testRunner)
        testRunner.dumpAsText();

    function eventhandler() {
        document.body.appendChild(document.body.firstChild);
    }
    function run() {
        document.caretRangeFromPoint(0,0);
        document.body.firstChild.after("abc")
        document.body.firstChild.addEventListener("DOMSubtreeModified", eventhandler);
        element.getRootNode().normalize();
    }
</script>
<body onload=run()>
    Test that normalize() behaves correctly in the presence of a mutation event that modifies the child order. PASS if test does not crash.
    <div id="element"></div>
</body>