Chrome 133 has breaking change when using :scope in a querySelector where the context is a document fragment
In Chrome 133, querySelector against a document fragment with :scope selector returns null, where it used to return the element that matched the query.
Removing the :scope selector fixes the issue, but all the applications in production using this selector have to be redeployed.
The :scope selector works when the context is an element.
<html>
<script type="module">
const frag = new DocumentFragment()
const html = `<div><span>hello</span></div>`
const div = document.createElement('div');
div.innerHTML = html
frag.append(div);
const works = frag.querySelector("span");
// !!!! :scope breaks the query in Chrome 133. Does not break in previous versions.
const breaks = frag.querySelector(":scope span")
const cloned = breaks.cloneNode()
document.body.append(cloned)
</script>
<body>
<div class="src">Hello World</div>
<div class="target"></div>
</body>
</html>