Duplicate Check
Describe the Bug
When attempting to log in to Spotify using a Google account inside SimpMusic, the login flow fails and returns a Google error page instead of completing authentication.
Google blocks the authentication request and shows the following error:
- Error 403: disallowed_useragent
- "Spotify’s request does not comply with Google’s policies"
- Mentions Google’s "Use secure browsers" policy
Google may be blocking the embedded WebView or in-app browser used during Spotify authentication. It may require using a secure external browser or a Custom Tab instead of the current login method.
Steps to Reproduce
- Open SimpMusic
- Choose Spotify login
- Select Google login flow
- Attempt to sign in with a Google account
- Observe the Google error page
Expected Behavior
Users should be able to sign in to Spotify with their Google-linked Spotify account normally.
App Version
1.1.1
Android Version
16
Device Model
Samsung A34
Custom ROM
Custom ROM Name (if applicable)
No response
Screenshots (optional)

Log / Error Details
No response
Duplicate Check
Describe the Bug
When attempting to log in to Spotify using a Google account inside SimpMusic, the login flow fails and returns a Google error page instead of completing authentication.
Google blocks the authentication request and shows the following error:
Google may be blocking the embedded WebView or in-app browser used during Spotify authentication. It may require using a secure external browser or a Custom Tab instead of the current login method.
Steps to Reproduce
Expected Behavior
Users should be able to sign in to Spotify with their Google-linked Spotify account normally.
App Version
1.1.1
Android Version
16
Device Model
Samsung A34
Custom ROM
Custom ROM Name (if applicable)
No response
Screenshots (optional)
Log / Error Details
No response