WebGL is a black screen on mobile phones browser?

I was built a game as WebGL ( 1 and 2 ) then I have some problem about when I bring my game into domain server cause I can open the project through Google Chrome in pc its run fine , but In Mobile Browser (Safari , Chrome) while running have a black screen all the time.

Can Someone help me for this?

Thanks

https://docs.unity3d.com/Manual/webgl-browsercompatibility.html

WebGL is not supported on mobile. Basically, it MIGHT work, but that’s not guaranteed.