Without a field name, the directive applies to the entire request and a shared (proxy server) cache must force. It's generated at the end of the request and could be another source of. It was intended as a privacy measure:
12 Sage Business Cases From Stephanie Thum For Success Truth or Fiction
For security reasons we do not want certain pages in our application to be.
The list is just examples of different techniques, it's not for direct insertion.
But what i would like to do is to apply ?nocache=1 to every url related to the site (including the assets like style.css) so that i get the non cached version of the files. It tells browsers and caches that the response. Spent days trying to get chromium based app to stop caching images. The ?nocache with time echo solved the issue.
Ok, even if you aren't using express, what essentially needed is to set the nocache headers.