File: scroll-marker-dynamic-crash.html

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<!DOCTYPE html>
<html class="test-wait">
<style>
  #container {
    columns: 1;
    width: 500px;
    overflow: auto;
    scroll-marker-group: after;
  }

  #container::scroll-marker-group {
    display: block;
  }

  #container::column::scroll-marker {
    content: ' ';
  }
</style>
<div id="container"></div>
<script>
  document.body.offsetTop;
  requestAnimationFrame(() => {
    requestAnimationFrame(() => {
      container.style.width = "501px";
      document.documentElement.classList.remove("test-wait");
    });
  });
</script>

</html>