notifications/resources/shownotification-window-iframe.html - external/github.com/web-platform-tests/wpt - Git at Google

 <!DOCTYPE html>
 <meta charset="utf-8">
 <script>
   async function showNotification() {
     const registration = await navigator.serviceWorker.ready;
     await registration.showNotification('foo');
   }
 </script>
	<!DOCTYPE html>
	<meta charset="utf-8">
	<script>
	async function showNotification() {
	const registration = await navigator.serviceWorker.ready;
	await registration.showNotification('foo');
	}
	</script>