I really think XenForo needs to step up with their documentation for developers regarding this. As it currently is released, I don't think it can be safely used for authentication as OpenID Connect (OIDC) is missing here. Currently, yes, it can be used for authorization. But most people need...
I wholly agree with Kirby's post here. There is, after a long wait and much demand, finally an OAuth2 authorization framework implementation in place. I never gave it a look till now as I didn't need to implement an SSO with XenForo as an identity provider, but now I need to do so.
The current...