scroll-tree-parent-construction.html

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This WPT test may be referenced by the following Test IDs:
- /css/css-position/crashtests/scroll-tree-parent-construction.html - WPT Dashboard Interop Dashboard

<!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>