<!-- webkit-test-runner [ UsesBackForwardCache=true ] -->
<!DOCTYPE html>
<html>
<head>
    <style>
        .fixed {
            position: fixed;
            width: 10px;
            height: 10px;
            background-color: green;
        }
    </style>
    <script>
        if (window.testRunner) {
            testRunner.dumpAsText();
            testRunner.waitUntilDone();
        }

        function pageHidden()
        {
            if (!sessionStorage.finishTest) {
                sessionStorage.finishTest = true;
            } else {
                // Clean up after ourselves
                delete sessionStorage.finishTest;
            }
        }

        function pageShown()
        {
            if (sessionStorage.finishTest) {
                if (window.testRunner)
                    testRunner.notifyDone();
            } else {
                setTimeout(function() {window.location = "data:text/html,<script>history.back();</scrip" + "t>";}, 0);
            }
        }
    </script>
</head>
<body onpagehide="pageHidden();" onpageshow="pageShown();">
<p>Test passes if it does not crash.</p>
<div class="fixed"></div>
<iframe></iframe>
</body>
</html>