Source code
Revision control
Copy as Markdown
Other Tools
Test Info: Warnings
- This test has a WPT meta file that expects 1 subtest issues.
- This WPT test may be referenced by the following Test IDs:
- /html/syntax/parsing/adoption-agency-reparenting-document-target.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<meta charset="utf-8">
<title>Adoption agency: foster target is a Document with an element child</title>
<link rel="help" href="https://html.spec.whatwg.org/multipage/parsing.html#adoption-agency-algorithm">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/adoption-agency-reparenting.js"></script>
<body>
<script>
// Isolated in case implementations crash.
//
// The common ancestor is a <tr> (a foster-parenting element), so the "Insert
// lastNode ... at the adjusted insertion location" step foster-parents relative
// to the last <table> on the stack. Script makes that <table> the document
// element of a second Document, so the foster target is a Document that already
// has an element child. lastNode (<div id=fb>) must be dropped on the floor, the
// same way an element inserted into such a Document is.
promise_test(async t => {
const iframe = await parseInIframe(t, `<table><tbody><tr><b><div id=fb><script>window.fb=document.getElementById('fb');window.other=document.implementation.createHTMLDocument('');window.other.documentElement.remove();window.other.appendChild(document.querySelector('table'))<\/script></b></table>`);
const w = iframe.contentWindow;
assert_equals(tree(iframe.contentDocument.body), `<b>`, "main document body");
assert_equals(w.other.childElementCount, 1,
"the second Document keeps only the <table> as its element child");
assert_false(w.fb.isConnected, "the moved node is dropped (detached)");
}, "Adoption agency foster target is a Document that already has an element child");
</script>