iFrame issue with Zapworks Studio

Hi All,
I am using Zap Works Studio to create a world AR experience where I put 3d / holo object. Able to successfully create a link by publishing. Link is working absolutely fine on Android mobile browsers and Safari on iPhone. Now I tried to create a iframe on my website and embed this generated URL. Its working fine on Android Browsers. But on Safari iPhone the page is looking black screen.

Any help on the same on how to resolve this will be deeply appreciated.