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<!DOCTYPE HTML>
<html class="test-wait">
<head>
<style>
#ifr { border: 5px solid #ddd; width: 200px; height: 150px; }
</style>
</head>
<body>
<iframe id=ifr srcdoc="
<style>
body { margin: 0 }
* { box-sizing: border-box }
.c1 { width: 90px; height: 300px; }
.f1 {
position: fixed;
background: #ddf;
left: 30px;
top: 10px;
width: 120px;
height: 120px;
}
.s1 {
overflow: scroll;
margin: 10px;
height: 100px;
width: 100px;
border: 5px solid gray;
}
</style>
<div class=c1>AAA</div>
<div class=f1>
<div class=s1>
<div class=c1>AAA</div>
</div>
</div>"></iframe>
<script>
raf = async () => {
return new Promise(resolve => {
requestAnimationFrame(resolve);
});
}
onload = async () => {
await raf();
await raf();
ifr.contentWindow.location.reload();
for (let i = 0; i < 10; i++)
await raf();
document.documentElement.className = "";
};
</script>
</body>
</html>
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