net core / IdentityServer : unable to logout

Solution 1:

To redirect back to your client app after logout from IDS4 by clicking link Click here to return to the Interactive client .... , you should set correct PostLogoutRedirectUris in client configuration :

new Client
{
    ....

    // where to redirect to after logout
    PostLogoutRedirectUris = { "http://localhost:5002/signout-callback-oidc" },

     ....
}, 

In article from @McGuireV10 , he is using the identity server's demo server for testing , and use interactive.confidential.short client , you can't set that client's PostLogoutRedirectUris , so it will be https://localhost:5001/signout-callback-oidc by default . You can set your own identity server to test the scenario .