<!DOCTYPE html>
<html>
<body>
<div id="host"><div>host content</div></div>
<script>
if (window.testRunner)
    window.testRunner.waitUntilDone();
var root = document.querySelector('#host').webkitCreateShadowRoot();
root.innerHTML = '<style>invalid { }</style>' +
                 'text<content></content>';
window.setTimeout(function() {
    if (window.testRunner)
        window.testRunner.notifyDone();
}, 0);
</script>
</body>
</html>