Do any of you have normal working full screen js code for iphone?
I know there is no full screen on Ios browsers but it works like when you scroll in a browser then address bar hides and your application stretches on the full screen.
I don’t have that kind of trick for any device 
What you can do is add a json manifest that claims your game to be a PWA and (if your app is served via https) you will get full screen but the user has to “add to home screen” your game first and then open it from there 
