third_party/blink/web_tests/fast/css/shadow-style-removed-out-of-document.html - chromium/src - Git at Google

 <!DOCTYPE html>
 <script src="../../resources/js-test.js"></script>
 <script>
 description('Remove style element before its shadow root is attached to document but it should not crash.');
 var div = document.createElement('div');
 var root = div.createShadowRoot();
 root.innerHTML = '<style>div { color: green; }</style><div>Hello world</div>';
 root.removeChild(root.firstChild);
 </script>
	<!DOCTYPE html>
	<script src="../../resources/js-test.js"></script>
	<script>
	description('Remove style element before its shadow root is attached to document but it should not crash.');
	var div = document.createElement('div');
	var root = div.createShadowRoot();
	root.innerHTML = '<style>div { color: green; }</style><div>Hello world</div>';
	root.removeChild(root.firstChild);
	</script>