cross-frame-access-get-custom-property-cached.html

<html>
<head>
    <script src="resources/cross-frame-access.js"></script>
    <script>
        window.onload = function()
        {
            if (window.testRunner) {
                testRunner.dumpAsText();
                testRunner.waitUntilDone();
            }

            window.targetWindow = frames[0];

            shouldBeTrue("customPropertyAccessThrowsException(targetWindow)");
            shouldBeTrue("customPropertyAccessThrowsException(targetWindow)");
            shouldBeTrue("customPropertyAccessThrowsException(targetWindow)");

            if (window.testRunner)
                testRunner.notifyDone();
        }

        function customPropertyAccessThrowsException(o)
        {
            try {
                var x = o.customProperty;
                return false;
            } catch (e) {
                return true;
            }
        }
    </script>
</head>
<body>
<p>This test checks that caching of property accesses doesn't allow for illegal cross-frame access of a custom property. It also checks for an assertion failure that once occurred in this situation.</p>
<iframe src="http://localhost:8000/security/resources/cross-frame-access-get-custom-property-cached-iframe.html" style=""></iframe>
<pre id="console"></pre>
</body>
</html>

chromium/third_party/blink/web_tests/http/tests/security/cross-frame-access-get-custom-property-cached.html