Improve error handling by creating a function handler for connections on servers that use KY, and use the status key in
the response as the key to success instead of catch. Use catch if an error occurs between the client and server, not
between the server and backend.
Send the frontend callback URI to the backend as required by the OAuth vendor. The frontend explicitly sends the
callback URI for flexibility in the backend system.
Create a provider option in the callback handler to define the provider name for flexibility when used with multiple
providers and requiring multiple endpoints.
