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

        function testcase()
        {
            var iframe = document.getElementById('iframe');
            var frameDocElement = iframe.contentDocument.documentElement;
            frameDocElement.innerHTML = '<object>cc</object>';
            frameDocElement.addEventListener('beforeload', frameBeforeLoad, true);
            window.getSelection().selectAllChildren(document.body);
        }

        function frameBeforeLoad(event)
        {
            document.write('Test passes if it does not crash.');
        }
    </script>
    </head>
    <body onload='testcase();'>
        <iframe id='iframe'></iframe>
        <marquee>marquee</marquee>
    </body>
</html>