Bug ? - Background flashes black on resume when Safari was opened

Hi all, Maybe I discovered some bug…

On IOS: (latest version)

  1. Open your app (with a background-image) (or color, maybe this makes no difference);
  2. Press home button to set your app to background.
  3. Open safari
  4. close safari (press home-button)
  5. Open your app again.

Result:

Black background for 0.6 sec…