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Diogo Garcia

Web login shows Firebase project domain instead of my custom domain

Integrations

Hi everyone,
I’m encountering a problem with my FlutterFlow app’s web login flow. I’ve successfully set up a custom domain (e.g., app.mydomain.com) in Firebase and have integrated it with my FlutterFlow project. However, when I attempt to log in using Google Sign-In (or any other web-based authentication), the redirect still goes through my Firebase project’s default domain (myproject.firebaseapp.com) rather than using my configured custom domain.

I’ve confirmed that my custom domain is added as an authorized domain in Firebase Authentication, and I’ve also connected it to FlutterFlow without any apparent issues. Is there an additional step I need to take so that the web login flow uses my custom domain instead of the default Firebase domain?

Any insights or suggestions would be greatly appreciated. Thank you!

What have you tried so far?

I followed the standard FlutterFlow setup as documented. My Firebase project was created directly through FlutterFlow, and I added mydomain.com as an authorized domain in the Firebase console. In FlutterFlow, I configured my custom domain as app.mydomain.com. Despite these steps, the login process still uses the default myproject.firebaseapp.com domain instead of my custom domain.

Did you check FlutterFlow's Documentation for this topic?
Yes
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