Web design: caches

Self-tutoring about web design: the tutor mentions caches and a consequence of them for web designers.

A cache, in computing, is a memory structure that holds previously loaded material in case it’s requested again. It can speed up fulfillment by producing the material without having to reload it freshly from source.

Browsers typically have caches, but servers also can. If you’re changing a file on the server side, you might not notice the changes you’ve made when you load the file at the browser, because the old file could still reside in two caches: the one on the server, then the one in the browser.

In order to view the new version of the file on the browser, both caches would need to be purged of the old version. Then, the fresh version will be procured from the server.

Source:

techtarget.com