<!DOCTYPE html>
<html>
<head>
<script>
window.trace.push("START root");
</script>
<link id="harness" rel="import" href="async-root-child-1.html">
<link id="harness" rel="import" href="async-root-child-2.html">
<script>
window.trace.push("END root");
</script>
</head>
<body></body>
</html>