<!DOCTYPE html>
<title>TreeWalker: cross-realm NodeFilter throws TypeError of current realm</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<link rel="help" href="https://webidl.spec.whatwg.org/#call-a-user-objects-operation">

<body id="treeWalkerRoot">
<div></div>

<script>
const iframe = document.createElement("iframe");
iframe.src = "support/TreeWalker-acceptNode-filter-cross-realm-subframe.html";
iframe.onload = () => {
    for (const testCase of iframe.contentWindow.testCases) {
        test(t => {
            assert_equals(testCase.actual.constructor, testCase.expected);
        }, testCase.description);
    }
};
document.body.append(iframe);
</script>