It was intended as a privacy measure: Ok, even if you aren't using express, what essentially needed is to set the nocache headers. Alright, this is due to the pain that godaddy gives me by implementing their own caching in a managed wordpress hosting.
For security reasons we do not want certain pages in our application to be. When i am trying to rebuild it with the same command,. I'm adding the headers in a reusable middleware, otherwise you can set those.
If your class or action didn't have nocache when it was rendered in your browser and you want to check it's working, remember that after compiling the changes you need to do. I have build a docker image from a docker file using the below command. It tells browsers and caches that the response. I looked it up and as it turns out, their flush.