Invalid Redirect URL: This redirect URI is not secure.

[AnadarProSvcs]

Spotify will no longer accept an http callback as of Nov. 2025. Must have https so http://localhost:5173/callback can't work.

[janbloemacher]

You can still use http://127.0.0.1:5173/callback

As per the announcement it's just localhost, 127.0.0.1 works