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<!DOCTYPE html>
<meta charset="utf-8">
<title>[[SetPrototypeOf]] on a Location object should not allow changing its value: cross-origin via document.domain after initially getting the object</title>
<link rel="help" href="http://html.spec.whatwg.org/multipage/#location-setprototypeof">
<link rel="author" title="Domenic Denicola" href="mailto:d@domenic.me">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/test-setting-immutable-prototype.js"></script>
<iframe src="/common/blank.html"></iframe>
<script>
"use strict";
setup({ explicit_done: true });
window.onload = () => {
const targetLocation = frames[0].location;
const origProto = Object.getPrototypeOf(targetLocation);
test(() => {
assert_not_equals(origProto, null);
}, "Same-origin (for now): the prototype is accessible");
document.domain = "{{host}}";
test(() => {
assert_equals(Object.getPrototypeOf(targetLocation), null);
}, "Became cross-origin via document.domain: the prototype is now null");
testSettingImmutablePrototype("Became cross-origin via document.domain", targetLocation, null, { isSameOriginDomain: false });
testSettingImmutablePrototypeToNewValueOnly(
"Became cross-origin via document.domain", targetLocation, origProto,
"the original value from before going cross-origin", { isSameOriginDomain: false });
done();
};
</script>
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