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Test Info:

<html class="test-wait">
<script>
window.onload = function fuzz() {
document.querySelector('audio').setAttribute('aria-owns', 'x1');
requestAnimationFrame(() => {
document.querySelector('audio').removeAttribute('aria-owns');
document.documentElement.className = '';
});
}
</script>
<audio>
<span id="x1"></span>
</audio>
</html>