* Added troubleshooting info
The `INVALID_CLIENT: Invalid redirect URI` error can occur when the URL, for example, contains a port number. This can happen if the port number is set in the Base_URL attribute of the HTTP integration.
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* ✏️ Tweak
Co-authored-by: Franck Nijhof <frenck@frenck.nl>
Had problems with integrating Spotiy in HA, but I found out the callback url with version 0.102.3 is send without the port. So I edited the callback URL in the Spotiy app and was able to add Spotify to HA
