[periodicsync.https.window.html]
  expected:
    if (os == "win") and not swgl and not debug and (processor == "x86"): [OK, TIMEOUT]
    if (os == "win") and not swgl and debug and (processor == "x86_64"): [OK, TIMEOUT]
    if (os == "android") and fission: [OK, TIMEOUT]
  [Periodic Background Sync requires an activated Service Worker]
    expected:
      if (os == "win") and not swgl and debug and (processor == "x86_64"): [FAIL, TIMEOUT]
      if (os == "win") and not swgl and not debug and (processor == "x86"): [FAIL, TIMEOUT]
      FAIL

  [Periodic Background Sync unregister silently succeeds when Service Worker is unactivated]
    expected:
      if (os == "win") and not swgl and debug and (processor == "x86_64"): [FAIL, NOTRUN]
      if (os == "win") and not swgl and not debug and (processor == "x86"): [FAIL, NOTRUN]
      FAIL