Black bars on top and bottom since the new twitch player update

As the title says, i’m having issue with BTTV and new twitch player update. You can see in this picture black bars on top and bottom:

I’m using Google Chrome. Tried resizing the chat but it doesn’t help. I’m not the only one, my friends are having the same issue. Disabling BTTV removes the black bars.

Refer to this GitHub issue: