LayoutTests/highlight/highlight-crash.html - external/github.com/WebKit/webkit - Git at Google

 <!DOCTYPE html>
 <style>
 ::highlight { background: red }
 </style>
 <script>
 if (window.testRunner)
     testRunner.dumpAsText();
 </script>
 <p>This test should not crash.</p>
	<!DOCTYPE html>
	<style>
	::highlight { background: red }
	</style>
	<script>
	if (window.testRunner)
	testRunner.dumpAsText();
	</script>
	<p>This test should not crash.</p>