How to make registration through social networks Google Plus and Facebook work on an alias domain?

Question

Social media

Hello, I have two domains - domain.ru and do-main.ru. do-main.ru is a mirror of domain.ru . On both sites, authorization through social networks is configured. network, but it only works on domain.ru, since it was originally configured under domain.ru. How can I fix the problem so that the same authorization script works on both the mirror and the main domain? With VK, I solved the problem, there you can simply enter a comma in the required field, but I did not find this in Google Plus and Facebook.
Please let me know if anyone has experienced this