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<!DOCTYPE html>
<meta charset=utf-8>
<title>Node.appendChild: inserted script should be able to take own mutation record</title>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<body>
<main></main>
<script>
test(() => {
window.mutationObserver = new MutationObserver(() => {});
window.mutationObserver.observe(document.querySelector("main"), {childList: true});
const script = document.createElement("script");
script.textContent = `
window.mutationRecords = window.mutationObserver.takeRecords();
`;
document.querySelector("main").appendChild(script);
assert_equals(window.mutationRecords.length, 1);
assert_array_equals(window.mutationRecords[0].addedNodes, [script]);
}, "An inserted script should be able to observe its own mutation record with takeRecords");
</script>
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