<!DOCTYPE html>
<html>
<head>
<script>

function runTest()
{
    if (window.testRunner)
        testRunner.dumpAsText();

    getSelection().setBaseAndExtent(span, 0, span, 2);
    document.execCommand("delete", false);
    document.write("Test passes if no crashes with asan.")
}

</script>
</head>
<body onload="runTest()">
<li contenteditable="">
    <basefont>
    <progress contenteditable="false">
        <span id="span">content</span>
    </progress>
</li>
</body>
</html>