browsing-topics/resources/document-api-notify-parent.tentative.https.html - external/github.com/web-platform-tests/wpt - Git at Google

 <!doctype html>
 <body>
   <script>
     document.browsingTopics().then((topics) => {
       window.parent.postMessage({error: 'No error'}, '*');
     })
     .catch((err) => {
       window.parent.postMessage({error: err.message}, '*');
     });
   </script>
 </body>
	<!doctype html>
	<body>
	<script>
	document.browsingTopics().then((topics) => {
	window.parent.postMessage({error: 'No error'}, '*');
	})
	.catch((err) => {
	window.parent.postMessage({error: err.message}, '*');
	});
	</script>
	</body>