When a user revisits my website, which makes connection to the Spotify web api, the user gets automatically signed in to the Spotify service.
Now I want a log out button on my site, so the user is forced to enter his/her credentials again, so the user can use different credentials for another Spotify account.
How can I accomplish that? Adding show_dialog=true won't log out the user, but only askes the user to give permission to the Spotify service to use some scopes. I need to clear the session, but don't know how I can clear a session from code (C#).