<html>
<link rel="import" href="../resources/dump-as-text.html" />
<body>
Tests unresolved element not leaking if never resolved.
<div id="container"></div>
<script>
// Verify that a custom tag for which no element is ever registered
// doesn't cause a document nor elements to leak.
var host = document.createElement('div');
host.appendChild(document.createElement('x-a'));
</script>
</body>
</html>