How to use a local proxy to connect to a locally established server

When connecting to a server set up at localhost: 8000, I want to go through a local proxy set up at localhost: 8080.

The browser uses Chrome, and proxy settings are made using switchyomega.
Since communication to other than localhost can be connected via a local proxy, switchyomega settings and local proxy seem to work well.

How can I connect to a local server via a local proxy?
Thank you.

The setting screen of switchyomega is as follows.