<!DOCTYPE html>
<html>
  <head>
    <title>Framebusting without user activation</title>
    <meta charset="utf-8"/>
  </head>
  <body>
    <p>If you see this message, then framebusting without user activation failed!</p>
    <iframe srcdoc="<p>This frame tries to navigate its top context...</p><script>top.location='data:text/html,Framebusting without user activation succeeded!'</script>"></iframe>
  </body>
</html>