When Facebook login by link

[paullarionov]

URL blocked: Failed to redirect because the final URI is not whitelisted in the OAuth Client Settings section of the application. Make sure that logging in using OAuth is enabled for the client and web forms, and add all the domains of your application as valid URI for OAuth redirection.

https://monosnap.com/file/dWosrTjmQ7J71otWLfJx39Tp3GmQfw