third_party/blink/web_tests/wpt_internal/framework-detection/detect-vue3.html - chromium/src - Git at Google

 <!DOCTYPE html>
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
 <script src="resources/test-framework-version.js"></script>
 <body>
 <script>
   window.__VUE__ = true;
   test_framework_version("Vue", "3.0");
 </script>
 </body>
	<!DOCTYPE html>
	<script src="/resources/testharness.js"></script>
	<script src="/resources/testharnessreport.js"></script>
	<script src="resources/test-framework-version.js"></script>
	<body>
	<script>
	window.__VUE__ = true;
	test_framework_version("Vue", "3.0");
	</script>
	</body>