<!DOCTYPE HTML>
<html>
<body>
frame A<br/>
<iframe name='frameB' src="http://example.com/tests/dom/security/test/csp/file_windowwatcher_subframeB.html"></iframe>
<iframe name='frameC' src="http://example.com/tests/dom/security/test/csp/file_windowwatcher_subframeC.html"></iframe>
<iframe name='frameD' src="http://example.com/tests/dom/security/test/csp/file_windowwatcher_subframeD.html"></iframe>

<script class="testbody" type="text/javascript">

window.onload = function() {
  frameB.openWin();
}

</script>
</body>
</html>