Simple-player allows fullscreen by double click. How?

[sebastientromp]

Hello,

It looks like we can enter fullscreen mode on the simple-player demo, but not on the others.
Looking at the source code from https://github.com/videogular/videogular2-showroom/tree/master/src/app/simple-player, I didn't see anything relating to this (or to have a play overlay).

What am I missing?

Thanks for your help!