<!DOCTYPE html>
<meta charset="utf-8">
<title>Cross-realm [Default] toJSON() creates result object in its realm</title>
<link rel="help" href="https://webidl.spec.whatwg.org/#default-tojson-steps">

<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="support/create-realm.js"></script>

<body>
<script>
promise_test(async t => {
    const other = await createRealm(t);
    const json = other.DOMRectReadOnly.prototype.toJSON.call(new DOMRectRead