Live streaming issues (twitch & youtube) for in-game web browser


I just tried to watch Youtube, Twich and another video streaming platform **lives **from a in-game web browser but I encountered errors, basically, videos are not showing.

Twitch : error 4000 ;

Youtube says my navigator does not reconize any video format, for some other normal videos it worked ;

Blastream the conference never started

I followed this tutorial, everything works fine except the error just described.
I found this known issue about Chromium (used by UE4), this other one and I also posted my message here.

Can this be corrected?

Are there any solutions?

Did anyone figure this out yet?