Facebook App: Firebase Simple Login URL error

Question

I am trying to make my first app using Facebook login and the Firebase Simple Login. I am running the system locally on http://localhost:8000/. The error I am receiving upon clicking the login button is below.

"Given URL is not allowed by the Application configuration.: One or more of the given URLs is not allowed by the App's settings. It must match the Website URL or Canvas URL, or the domain must be a subdomain of one of the App's domains."

I have tried running it on a production facebook app and a facebook test app as well as added URL redirects and website platforms following other forum post I have seen, but nothing is working for me. Anyone have any suggestions?

Answer 1

with newest version, Valid OAuth redirect must be set as : https://.firebaseapp.com/__/auth/handler