Add: I’ve tested it today with the recently released V4.23.
Streaming Video works fine in the Editor and in a Windows Exe launch, but still nothing happens with the cooked package for HTML5. Assembly loads and compiles well, start map shows up, but the vid doesn’t stream.
So it seems to me, a.t.m. there is no priority and little endeavor to bring the media player to the HTML5 platform.
I’ve read about the HTML5 platform support will be outsourced as a community project on github for upcoming releases - so there is still hope for this to have.
Cheers