chromium/third_party/blink/web_tests/external/wpt/webmessaging/message-channels/close.any-expected.txt

This is a testharness.js-based test.
[FAIL] close() detaches a MessagePort (but not the one its entangled with)
  assert_throws_dom: function "() => c2.port1.postMessage(null, [c1.port1])" did not throw
Harness: the test ran to completion.