third_party/blink/web_tests/external/wpt/webmessaging/with-options/null-transfer.html - chromium/src - Git at Google

 <!doctype html>
 <title>null transfer</title>
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
 <div id=log></div>
 <script>
 test(function(t) {
   assert_throws(new TypeError, () => postMessage('', {transfer: null}));
 });
 </script>
	<!doctype html>
	<title>null transfer</title>
	<script src="/resources/testharness.js"></script>
	<script src="/resources/testharnessreport.js"></script>
	<div id=log></div>
	<script>
	test(function(t) {
	assert_throws(new TypeError, () => postMessage('', {transfer: null}));
	});
	</script>