Changes to system message articles MediaWiki:common.css and MediaWiki:common.js (and all similar articles) should go "live" immediately for all users when the article is saved. Right now, due to browser caching, changes aren't seen by users potentially for hours or days. Asking thousands of people to hard-refresh their browsers isn't a good solution.
Could this be solved easily by appending the article revision ID to the style tag, e.g., changing this:
@import "/w/index.php?title=MediaWiki:Common.css&usemsgcache=yes&action=raw&ctype=text/css&smaxage=18000"
to:
@import "/w/index.php?title=MediaWiki:Common.css&usemsgcache=yes&action=raw&ctype=text/css&smaxage=18000&revision=123456"
or some such trick, to tell the browser to reload the CSS or JS?
Version: 1.13.x
Severity: enhancement