I want to run a local server

The javascript should ask for the URL of the local web server
and then should be able to communicate with it

Ideally the brower would be running on the same machine as local file server


You could use nodejs for the server or go

See : https://hackernoon.com/how-to-create-a-web-server-in-go-a064277287c9

https://astaxie.gitbooks.io/build-web-application-with-golang/en/04.5.html