<!DOCTYPE html>
<html>
<head><title>Page with access to localStorage and sessionStorage</title>
</head>
<body>
    <script type="text/javascript">
        try
        {
            if (window.localStorage && window.sessionStorage) {
                parent.window.postMessage("access to window.localStorage and window.sessionStorage", "*");            
            }
        }
        catch(e)
        {
            parent.window.postMessage("no access to window.localStorage and window.sessionStorage", "*");            
        }
    </script>
</body>
</html>