<!DOCTYPE html>
<meta charset="utf-8">
<title>Custom Elements: CustomElementRegistry is per global</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<link rel="help" href="https://html.spec.whatwg.org/multipage/#custom-elements-api">
<link rel="author" title="Domenic Denicola" href="mailto:d@domenic.me">
<script src="/common/object-association.js"></script>

<body>
<script>
"use strict";
testIsPerWindow("customElements");
</script>