chromium/third_party/blink/web_tests/external/wpt/resource-timing/xhr-resource-timing.html

<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8" />
<title>This test validates that a failed cross-origin fetch creates an opaque network timing entry.
</title>
<link rel="author" title="Noam Rosenthal" href="[email protected]">
<link rel="help" href="https://www.w3.org/TR/resource-timing-2/#sec-performanceresourcetiming"/>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/resource-loaders.js"></script>
<script src="resources/entry-invariants.js"></script>
<script src="/common/get-host-info.sub.js"></script>
</head>
<body>
<script>
const {REMOTE_ORIGIN} = get_host_info();

attribute_test(
  load.xhr_async, "/common/dummy.xml",
  invariants.assert_tao_pass_no_redirect_http,
  "Verify resource timing entry creation for successful XHR");

attribute_test(
  load.xhr_async, `${REMOTE_ORIGIN}/common/dummy.xml`,
  invariants.assert_tao_failure_resource,
    "Verify resource timing entry creation for XHR failing with CORS");
</script>
</body>