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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /quirks/classname-query-after-sibling-adoption.html - WPT Dashboard Interop Dashboard
<!-- quirks mode -->
<html>
<head>
<title>Quirks mode elements with class names should remain queriable regardless of sibling adoption into standards mode documents</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
</head>
<body>
<div>
<button class="Foo"></button>
<button class="Foo"></button>
</div>
<template><div class="Bar"></div></template>
<script>
test(function () {
var templateDocument = document.querySelector("template").content.ownerDocument;
assert_equals(templateDocument.compatMode, "CSS1Compat");
assert_equals(document.compatMode, "BackCompat");
var container = document.querySelector("div");
var button1 = container.querySelector(".foo");
assert_true(button1 instanceof Element);
templateDocument.appendChild(button1);
assert_true(templateDocument.querySelector(".Foo") instanceof Element);
assert_false(templateDocument.querySelector(".foo") instanceof Element);
var button2byHierarchy = container.firstElementChild;
var button2bySelector = container.querySelector(".foo");
assert_true(button2bySelector instanceof Element);
assert_equals(button2bySelector, button2byHierarchy);
});
</script>
</body>
</html>