[send-on-deactivate-with-background-sync.tentative.https.window.html]
  [fetchLater() does send on page entering BFCache even if BackgroundSync is on.]
    expected: FAIL

  [fetchLater() with activateAfter=0 sends on page entering BFCache if BackgroundSync is on.]
    expected: FAIL

  [fetchLater() with activateAfter=1m does send on page entering BFCache even if BackgroundSync is on.]
    expected: FAIL
