<script id='s0' src='data:'>
</script>
<script>
if (window.testRunner)
    testRunner.dumpAsText();
onload = async () => {
    let head = document.head;
    head.isAlive = true;
    let div0 = document.createElement('div');
    s0.appendChild(div0);
    let div1 = document.createElement('div');
    document.head.appendChild(div1);
    let div2 = document.createElement('div');
    div1.appendChild(div2);
    document.head.remove();
    let range = new Range();
    range.setStartAfter(div2);
    range.setStartBefore(div0);
    await Promise.resolve();
    GCController.collect();
    range.deleteContents();
    if (!head.isAlive)
        document.write('FAIL: !head.isAlive');
    else if (range.commonAncestorContainer != head)
        document.write('FAIL: range.commonAncestorContainer != head');
    else
        document.write('PASS: Test did not crash.');
};
</script>