testing/web-platform/tests/old-tests/submission/Microsoft/sandbox/iframe_sandbox_023.htm


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<!DOCTYPE html>
<html>
<head><title>Access parent dom</title>
</head>
<body>
    <script type="text/javascript">
        if (window.parent.document)
        {
            parent.window.postMessage("window.parent.document", "*");
        }else{
            parent.window.postMessage("!window.parent.document", "*");
        }
    </script>
</body>
</html>