[abort.https.window.html]
  expected:
    if os == "win": [OK, TIMEOUT]
  [Calling BackgroundFetchRegistration.abort sets the correct fields and responses are still available]
    expected:
      if os == "win": [FAIL, NOTRUN]
      FAIL

  [Aborting the same registration twice fails]
    expected:
      if os == "win": [FAIL, TIMEOUT]
      FAIL

  [An aborted fetch throws a DOM exception when accessing an incomplete record]
    expected:
      if os == "win": [FAIL, NOTRUN]
      FAIL