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<!DOCTYPE HTML>
<html>
<head>
  <title>Tests for for-of loops</title>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <script src="/tests/SimpleTest/EventUtils.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css">
</head>
<body onload="doTest()">
<p id="display"></p>
<div id="content" style="display: none"></div>
<script>
function doTest() {
  document.getElementById("button").focus();
  is(window.scrollY, 0, "Scrolled position initially 0");
  synthesizeKey("KEY_Tab"),
  ok(window.scrollY > 200, "Scrolled child frame into view");
  SimpleTest.finish();
}
SimpleTest.waitForExplicitFinish();
</script>
<button id="button">B</button><br><iframe style="margin-top:10000px;height:400px"></iframe>
</body>
</html>