Separate web-client for identityserver4 and authorize another api resource using identityserver web-api endpoints

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C#

WebAPI

identity-server-4

dear all,

I have developed an identityserver4 based authentication and authorization application, I used ExtJs as my web-client and Dotnet core web-API as my backend service. The endpoints such as signup, sign in return JSON-value, but not view.

Now, I have another service which I want it to be authorized using the above authorization server, I have configured using Identity server, so when I try to browse it from a browser it redirects me to ExtJs web-client and on a successful sign in it does not get me back where I want to go... I think this is because the web-client is separate from the identityserver4 application..or what is the problem and how can I resolve this?

Regards

What I have tried:

I will post some code if necessary but I need more concepts..