How to correctly play a third-party site with SSL on a different server and domain through an iframe?

Question

CMS

Domain A has an SSL certificate, the Site (namely the game) opens correctly. When trying to play it on a third-party domain B through iframe technology, there is a difficulty. A welcome slide appears, followed by a black screen (the registration screen should appear instead). What could be the problem?

Answer 1

Everything works, check if the ad blocker works?