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Test Info:
- Manifest: dom/bindings/test/chrome.toml
<!DOCTYPE HTML>
<html>
<!--
-->
<head>
<meta charset="utf-8">
<script type="application/javascript">
ok(Element.isInstance(document.documentElement), "Basic isInstance works");
ok(!Element.isInstance(null),
"Passing null should return false without throwing");
ok(!Element.isInstance(5), "Passing 5 should return false without throwing");
var obj = Object.create(Element.prototype);
ok(obj instanceof Element, "instanceof should walk the proto chain");
ok(!Element.isInstance(obj), "isInstance should be a pure brand check");
</script>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1457051">Mozilla Bug 1457051</a>
<p id="display"></p>
<div id="content" style="display: none">
</div>
<pre id="test">
</pre>
</body>
</html>