chromium/third_party/blink/web_tests/external/wpt/service-workers/service-worker/resources/location-setter.html

<!DOCTYPE html>
<meta charset="utf-8"/>
<meta name="referrer" content="origin">
<script>
function onLoad() {
  const params = new URLSearchParams(self.location.search);
  self.location = params.get('target');
}
self.addEventListener('load', onLoad);
</script>