I am trying to use facebook social login with my ios application. I would like to use organization this feature so I choose business/both user type. Also, I already have a facebook application but do not do the business verification yet. Therefore, I filled the app id and app secret. However, when I use facebook social login, my application will turn blank and always get a "OAuth “Facebook Platform” “invalid_request” “Unsupported get request”(picture attached below).
Does anyone can give some advice or hint? or how to resolve this issue?
BTW, Apple login and Google Login are work fine.