<html>
<head>
<script>
if (window.testRunner)
    testRunner.dumpAsText();

function test() {
    var shadow = host.attachShadow({mode: "open"});
    shadow.innerHTML = '<map name="bar"></map><img usemap="#bar">';
    host.remove();
}
</script>
</head>
<body onload="test()">
This test passes if it doesn't crash.
<map id="map" name="foo"></map>
<img usemap="#foo">
<div id="host"></div>
</body>
</html>