The "Disable browser page caching" user preference should be removed from MediaWiki core.
It's a very advanced user preference with little usage and it's arguably very misleading. It's a prime candidate for killing.
This is an easy bug to resolve (marking it with the Bugzilla keyword accordingly). Anyone interested can look at https://gerrit.wikimedia.org/r/27202 for a starting point for a new changeset (or un-abandon that changeset and rebase).