Playing on full screen on Android

Hi, I've been using the

Browser request full screen ontion,

added a button on the screen that will toggle the game and the full screen

When I try it on Preview Layout, it works great, but when I try this on remote preview on my Android it doesn't

Am I missing something?

TNX

Any help here?

As far as I know, it cannot be viewed in full screen in remote preview mode. But it should work once exported in .apk

Thanx!