custom-scrollbar-disabled-recalc-crash.html

<!DOCTYPE html>
<title>Ensure toggling display of custom scrollbars via :disabled pseudo does not hang.</title>
<script src="../resources/testharness.js"></script>
<script src="../resources/testharnessreport.js"></script>
<style>
* ::-webkit-scrollbar {
  height: 8px; width: 8px
}

* ::-webkit-scrollbar:disabled {
  display: none
}

.scroller {
  overflow: auto;
  max-width:200px;
  position:relative;
  height: 8px;
}

.abs {
  position: absolute;
  bottom: -4px; right: -10px;
  width: 40px; height: 10%;
}
</style>
<div class="scroller">
 <div class="abs"></div>
</div>
<script>
test(function() {
    document.body.offsetLeft 
  }, 'Should not crash/hang');
</script>

chromium/third_party/blink/web_tests/scrollbars/custom-scrollbar-disabled-recalc-crash.html