Node-cloneNode-external-stylesheet-no-bc.sub.html

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This WPT test may be referenced by the following Test IDs:
- /dom/nodes/Node-cloneNode-external-stylesheet-no-bc.sub.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<meta charset="utf-8">

<title>cloneNode on a stylesheet link in a browsing-context-less document</title>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<!-- Regression test for https://github.com/jsdom/jsdom/issues/2497 -->

<script>

"use strict";

setup({ single_test: true });

const doc = document.implementation.createHTMLDocument();

// Bug was only triggered by absolute URLs, for some reason...

const absoluteURL = new URL("/common/canvas-frame.css", location.href);

doc.head.innerHTML = `<link rel="stylesheet" href="${absoluteURL}">`;

// Test passes if this does not throw/crash

doc.cloneNode(true);

done();

</script>