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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/selectors/invalidation/has-append-first-node.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<html class="reftest-wait">
<link rel="author" title="David Shin" href="mailto:dshin@mozilla.com">
<link rel="match" href="../../reference/ref-filled-green-100px-square.xht">
<style>
#dut {
width: 100px;
height: 100px;
background: red;
}
#dut:has(span) {
background: green;
}
</style>
<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<div id="dut"></div>
<script>
function raf() {
return new Promise(resolve => {
requestAnimationFrame(resolve);
});
}
async function go() {
await raf();
await raf();
const df = document.createDocumentFragment();
const t = document.createTextNode('\n');
df.appendChild(t);
const s = document.createElement("span");
df.appendChild(s);
dut.appendChild(df);
document.documentElement.className = '';
}
go();
</script>
</html>