chromium/third_party/blink/web_tests/external/wpt/workers/constructors/SharedWorker/NaN-arguments.html

<!doctype html>
<title>NaN as arguments</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
async_test(t => {
  const worker = new SharedWorker(NaN, NaN);
  worker.port.onmessage = t.step_func_done(e => {
    assert_equals(e.data[0], 'NaN', 'first arg (script name)');
    assert_equals(e.data[1], 'NaN', 'second arg (worker name)');
  });
}, 'Test constructing a shared worker with NaN');
</script>