File: default-toJSON-cross-realm.html

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<!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 DOMRectReadOnly());

    assert_equals(Object.getPrototypeOf(json), other.Object.prototype);
}, "Cross-realm [Default] toJSON() creates result object in its realm");

promise_test(async t => {
    const other = await createRealm(t);
    const json = other.DOMQuad.prototype.toJSON.call(new DOMQuad());

    assert_equals(Object.getPrototypeOf(json.p1), DOMPoint.prototype);
}, "Cross-realm [Default] toJSON() converts its interface attributes to ECMAScript values of correct realm");
</script>
</body>