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

window.onload = function()
{
    frame = document.body.appendChild(document.createElement("iframe"));

    frame.contentWindow.open = null;
    frame.contentWindow.__defineGetter__("open", function() {
        document.body.removeChild(frame);
        return function() { };
    });
    frame.contentDocument.open(1, 1, 1, 1, 1);
}
</script>
</head>
<body>
This test passes if it doesn't crash.
</body>
</html>