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The list is just examples of different techniques, it's not for direct insertion. If copied, the second would overwrite the first and the fourth would overwrite the third because of the http-equiv declarations AND fail with the W3C validator. At most, one could have one of each http-equiv declarations; pragma, cache-control and expires.
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.
Use the --no-cache option in Docker to force a clean build of an image.
By default, my browser caches webpages of my ExpressJS app. This is causing a problem to my login system (users not logged in can open old cached pages of logged in users). How do I disable this
Our investigations have shown us that not all browsers respect the HTTP cache directives in a uniform manner. For security reasons we do not want certain pages in our application to be cached, eve...
@Anshul No, must-revalidate and no-cache have different meaning for fresh responses: If a cached response is fresh (i.e, the response hasn't expired), must-revalidate will make the proxy serve it right away without revalidating with the server, whereas with no-cache the proxy must revalidate the cached response regardless of freshness. Source: "HTTP - The Definitive Guide", pages 182-183.
The header Cache-Control: max-age=0 implies that the content is considered stale (and must be re-fetched) immediately, which is in effect the same thing as Cache-Control: no-cache.
I generate some images using a PHP lib. Sometimes the browser does not load the new generated file. How can I disable cache just for images created dynamically by me? Note: I have to use same n...
Ok, even if you aren't using express, what essentially needed is to set the nocache headers. I'm adding the headers in a reusable middleware, otherwise you can set those headers in any way that works.
Learn how to prevent web browsers from caching images and ensure they always load the latest version.