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chromium/third_party/blink/web_tests/external/wpt/css/css-grid/fieldset-first-line-crash.html 

<!doctype html>
<meta charset="utf-8">
<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1871513">
<style>
*::first-line { }
.a {
  display: inline-grid;
}
</style>
<fieldset class="a">