<html>
<head>
  <meta name="viewport" content="initial-scale=1">
  <script>
    if (window.testRunner)
      testRunner.dumpAsText();
  </script>
</head>
<body>
  <p>This test should not assert.</p>
  <div style="overflow: auto; -webkit-overflow-scrolling: touch; width: 320px; height: 300px; border: 2px solid blue; ">
    <iframe style="position:absolute; top:0; left:0; height: 200px; width: 200px; border: 2px solid black; background-color: blue;"></iframe>
    <div style="position: relative; height: 500px; width: 100%; background-color: rgba(0, 0, 0, 0.2); padding: 10px">
    </div>
  </div>
</body>
</html>