LayoutTests/fast/dynamic/subtree-common-root.html

<p>
    Test for <i><a href="rdar://problem/5619240">rdar://problem/5619240</a> REGRESSION (Leopard-r28069): Reproducible crash with a Mootools-based calendar picker (jump to null in FrameView::layout)</i>.
</p>
<div id="target">
    <div style="overflow: hidden; width: 400px; height: 400px; position: relative;">
        <div></div>
        <div style="position: absolute; overflow: hidden; top: 0; width: 50px; height: 50px;"><div></div></div>
    </div>
</div>
<script>
    if (window.layoutTestController)
        layoutTestController.dumpAsText();

    document.body.offsetTop;
    document.getElementById("target").style.display = "none";
</script>