chromium/third_party/blink/web_tests/http/tests/devtools/coverage/resources/subframe.html

<html>
<head>
<link rel="stylesheet" type="text/css" href="highlight-in-source.css">
</head>
<body>
<script type="application/x-javascript" src="coverage.js"></script>
<script type="application/x-javascript" >
function performActionsInFrame() {
  return outer(1)(0) + outer(2)(0);
}
</script>
<p class="class">class</p>
<p id="id">id</p>
</body>
</html>