[getregistrations.https.html]
  expected:
    if (os == "win") and not debug and (processor == "x86_64"): [OK, TIMEOUT, ERROR]
  [Register then Unregister with controlled frame then getRegistrations]
    expected:
      if (os == "win") and not debug and (processor == "x86_64"): [PASS, TIMEOUT]

  [getRegistrations promise resolves only with same origin registrations.]
    expected:
      if (os == "win") and not debug and (processor == "x86_64"): [PASS, NOTRUN]