<html>
<head>
    <script>
        function loaded()
        {
            document.getElementsByTagName('h4')[0].innerHTML = document.domain;
            // Allow the user to click the button during manuel runs.
            if (window.testRunner)
                performTest();
        }

        function performTest()
        {
            internals.withUserGesture(() => {
                parent.location = "http://localhost:8000/security/frameNavigation/resources/navigation-changed-iframe.html";
            });
        }
    </script>
</head>
<body onload="loaded();">
    <h4>DOMAIN</h4>
    <button onclick="performTest();">Perform Test</button>
</body>
</html>