Spotify Playlist card authentication does not work

I would like use the custom spotify card. (https://github.com/custom-cards/spotify-card)

After installation I only get the authenticate picture.
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If I click on it the login window appears, then I will be forwarded to a page with the error message “INVALID_CLIENT: Invalid client”.
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My configuration:

  • Spotify Developer
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  • Home Assistant
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What is wrong in my configuration?

PS:
The Spotify Player does work.
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Thanks for help!

Add the url to the page details
musik

Which url exactly?

Thats it, correct

Got the same Issue.

Thats correct?
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Your redirected url need to point to external addresses

I use a local address and it works.

In my case I need to paste the IP and write “Musik” with a capital letter.