<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8" />
        <title>Navigation Timing 2 WPT</title>
        <link rel="author" title="Google" href="http://www.google.com/" />
        <link rel="help" href="http://www.w3.org/TR/navigation-timing/#sec-navigation-timing-interface"/>
        <script src="/resources/testharness.js"></script>
        <script src="/resources/testharnessreport.js"></script>
        <script>
            setup({ single_test: true });

            var navigation_frame;
            var pnt1;
            var step = 1;
            function onload_test()
            {
                navigation_frame = document.getElementById("frameContext").contentWindow;
                setTimeout("nav_frame();", 0);
            }

            function nav_frame()
            {
                switch (step)
                {
                    case 1:
                    {
                        pnt1 = navigation_frame.performance.getEntriesByType("navigation")[0];
                        navigation_frame.location.href = '/navigation-timing/resources/blank_page_green_with_onunload.html';
                        step++;
                        break;
                    }
                    case 2:
                    {
                        navigation_frame.history.back();
                        step++;
                        break;
                    }
                    case 3:
                    {
                        var pnt2 = navigation_frame.performance.getEntriesByType("navigation")[0];
                        assert_equals(pnt1.type, "navigate");
                        assert_equals(pnt2.type, "back_forward");
                        done();
                        break;
                    }
                    default:
                        break;
                }
            }
        </script>
    </head>
    <body>
        <h1>
            Description</h1>
        <p>
            This test validates that a PerformanceNavigatingTiming corresponding to a detached document can't access a different document's state. </p>
        <iframe id="frameContext" onload="onload_test();" src="resources/blank_page_yellow_with_onunload.html" style="width: 250px; height: 250px;"></iframe>
    </body>
</html>