WorkerNavigator_userAgentData.http.html

<!DOCTYPE html>
<title> WorkerNavigator.userAgentData </title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>

  promise_test(async () => {
    const e = await new Promise((resolve, reject) => {
      const worker = new Worker("./support/WorkerNavigator.js");
      worker.onmessage = resolve;
    });

    assert_equals(e.data.brands, undefined);
    assert_equals(e.data.mobile, undefined);
    assert_equals(e.data.getHighEntropyValues, undefined);
  }, "Test that userAgentData is not available in workers in non-secure contexts");
</script>

chromium/third_party/blink/web_tests/external/wpt/workers/WorkerNavigator_userAgentData.http.html