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Test Info:
<!DOCTYPE html>
<head>
<script>
let D = null;
class XA extends HTMLElement {
constructor() {
super();
const t = document.querySelector('table');
D = document.createElement('div');
D.appendChild(t);
}
}
customElements.define('x-a', XA);
class XInput extends HTMLInputElement {
constructor() {
super();
if (D) {
D.replaceChildren();
D = null;
dump("Force GC and CC\n");
SpecialPowers.forceShrinkingGC();
SpecialPowers.forceCC();
SpecialPowers.forceShrinkingGC();
SpecialPowers.forceCC();
}
}
}
customElements.define('x-input', XInput, {extends: 'input'});
</script>
</head>
<body>
<form>
<table>
<x-a></x-a>
<input is="x-input">
</table>
</form>
</body>