1<frameset cols="*">
2    <frame src="data:text/html,
3        <script>
4            function contextMenu()
5            {
6                document.getElementById('result').appendChild(document.createTextNode('PASS'));
7            }
8        </script>
9        <body onmousedown='return false;' oncontextmenu='contextMenu(); return false;'>
10            <p>
11                Control-click (Mac) or right-click (Windows) below. The word 
12                %26ldquo;PASS%26rdquo; should appear. A contextual menu should not open.
13            </p>
14            <p id='result'></p>
15        </body>
16    ">
17</frameset>
18