Thanks for this add-on! I use it every day.
I see a change in the behavior of the videos playing in background. After a while it stops for example if I lock my phone, or if I leave the app (and I think it correlates with an inactivity timer or a refresh after an inactivity timer), when I start another app it also stops and no longer restarts.
I still use it and like it though, I wanted to let you know what happens to me.