'X-Frame-Options' set to 'DENY' with authentication enabled

Is it possible to embed AppSheet in iFrame when (Google) Authentication option enabled for an app?

I get the following error if I try to use iframe:
Refused to display 'https://www.appsheet.com/Account/Login?returnUrl= snip/snip/snip' in a frame because it set 'X-Frame-Options' to 'DENY'.

It’s blocked by most OAuth providers because the OAuth standard itself says not to allow login via iframe:


Thank you, that makes sense now.

Does anyone know a workaround for restricting the access to the app and using the iframe at the same time? I basically need to restrict access and embed the app on our school site.