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<!doctype html>
<html class="reftest-wait">
<body>
<script>
let parentDoc = `
<!doctype html>
<script>
onload = function() {
let observer = new ResizeObserver(_ => {
let parentFrame = window.parent.document.querySelector("iframe");
parentFrame.getBoundingClientRect();
parentFrame.style.display = "none";
parentFrame.getBoundingClientRect();
parentFrame.srcdoc = ""; // Navigate ourselves away.
});
setTimeout(() => observer.observe(document.documentElement), 0);
}
</` + 'script>';
let iframe = document.createElement("iframe");
iframe.srcdoc = parentDoc;
iframe.onload = function() {
if (this.srcdoc !== "") // We're only interested on the second load.
return;
SpecialPowers.forceGC();
SpecialPowers.forceCC();
requestAnimationFrame(() => {
requestAnimationFrame(() => {
SpecialPowers.forceGC();
SpecialPowers.forceCC();
iframe.style.display = "";
requestAnimationFrame(() => {
requestAnimationFrame(() => {
// If we haven't crashed by now, we should be fine.
document.documentElement.className = "";
})
})
})
});
};
document.body.appendChild(iframe);
</script>
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