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

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<!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>