<!DOCTYPE html>
<html>
<head>
<script>
if (window.testRunner) {
    testRunner.dumpAsText();
    testRunner.waitUntilDone();
}

function blurHandler() {
    var body = document.getElementById("testBody");
    var frame = document.getElementById("testFrame");
    body.appendChild(frame);
    if (window.testRunner)
        testRunner.notifyDone();
}

function audioHandler() {
    var frameSet = document.createElement("frameset");
    frameSet.setAttribute("onblur", "blurHandler()");

    var frame = document.getElementById("testFrame");
    frame.focus();
}
</script>
</head>
<body id="testBody">
    The test passes if it does not crash or assert in debug mode.
    <audio src="test" onloadstart="audioHandler()"></audio>
    <iframe id="testFrame" srcdoc="test"></iframe>
</body>
</html>