<!DOCTYPE html>
<script src="../../../resources/testharness.js"></script>
<script src="../../../resources/testharnessreport.js"></script>
<body>
    <script>
        test(function() {
            window.open("", "_self");
            window.close();
            assert_false(window.closed, "window should not be closeable by script");
        }, "Calling window.open with windowName '_self' should not make the window closeable by script");
    </script>
</body>
</html>