Ok, even if you aren't using express, what essentially needed is to set the nocache headers. The list is just examples of different techniques, it's not for direct insertion. Beware of etag even if you are using nocache, the etag header isn't removed, because it works in a different way.
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Without a field name, the directive applies to the entire request and a shared (proxy server) cache must force a successful.
For security reasons we do not want certain pages in our application to be cached, eve.
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 contains. The ?nocache with time echo solved the issue. It's generated at the end of the request and could be another source of unintended.
Spent days trying to get chromium based app to stop caching images.