adding spotifyauthverified:// as a redirect URL, not letting me save

[AliBlackburn]

My Question or Issue

I am trying to integrate spotify into an app im building, I can log in and use playback, next track, recall current artwork etc, using expo go.  But, when i try to launch in test pilot (after configuring the Auth code change) i'm propmted to add this redirect URL (spotifyauthverified://) but the spotify developer dashboard wont let me hit save, theres a 'problem saving page edits' pop up. 

TLDR - spotify integration works in expo go but not in testpilot, in test pilot I always get the Invalid Client Invalid redirect URL after entering OTP

to add further info...

• I'm building a mobile app using native Spotify SDK authentication

• I need to use a custom URI scheme for iOS login via TestFlight

• I cannot use the proxy URL (https://auth.expo.io/...) in production

• The URI is declared in my app and required by Apple for TestFlight builds

[AliBlackburn]

to add further info...

• I'm building a mobile app using native Spotify SDK authentication

• I need to use a custom URI scheme for iOS login via TestFlight

• I cannot use the proxy URL (https://auth.expo.io/...) in production

• The URI is declared in my app and required by Apple for TestFlight builds