css/css-grid/grid-definition/grid-add-item-with-positioned-items-crash.html

<!DOCTYPE html>
<html>
<head>
<title>CSS Grid Layout Test: no crash with adding positioned grid items</title>
<link rel="author" title="Manuel Rego Casasnovas" href="mailto:rego@igalia.com">
<link rel="help" href="https://drafts.csswg.org/css-grid/#grid-definition">
<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=273898">
<meta name="assert" content="Test that adding grid items when some of them are positioned does not crash." />

<style>
#grid {
  display: grid;
  grid-auto-flow: dense;
}

.absolute {
  position: absolute;
}
</style>
</head>

<body>
<div id="grid">
  <div></div>
  <div class="absolute"></div>
</div>

<script>
  var grid = document.getElementById("grid");
  grid.offsetTop;
  var newItem1 = document.createElement("div");
  grid.appendChild(newItem1);
  var newItem2 = document.createElement("div");
  newItem2.className = "absolute";
  grid.appendChild(newItem2);
</script>
</body>
</html>