Apple's HTTP POST caching is a bug
browser vendors should be pressured to up their game with regards to web caching. The cacheability of HTTP is the majority of its value as a network protocol and browsers - the defacto HTTP client - just aren't pulling their weight in this regard.Support for new cache-control directives like stale-if-error, and some kind of API for negotiating/allocating cache storage for web apps would be a good place to start, imo.