getComputedStyle-insets-absolute-crash.html

<!DOCTYPE html>
<title>Chromium bug: getComputedStyle() crashes with subtree layout of out-of-flow node</title>
<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1458561">

<style>
.container {
  position: relative;
  width: 100px;
  height: 100px;
  background: lime;
}

.oof {
  position: absolute;
  width: 30px;
  height: 30px;
  top: 0;
  left: 0;
  overflow: hidden;
  background: hotpink;
}
</style>

<div class="container">
  <div id="target1" class="oof">hi</div>
</div>
<script>
document.body.offsetTop;
target1.innerText = 'boom';
getComputedStyle(target1).top;  // Shouldn't crash
</script>

<div class="container">
  <div id="target2" class="oof"><div>hi</div></div>
</div>
<script>
document.body.offsetTop;
target2.firstChild.innerText = 'boom';
getComputedStyle(target2).top;  // Shouldn't crash
</script>

chromium/third_party/blink/web_tests/external/wpt/css/cssom/getComputedStyle-insets-absolute-crash.html