The note at the bottom about web pages is interesting. I always wish browsers followed that behavior so the "Work Offline" button would actually work when I got

The note at the bottom about web pages is interesting. I always wish browsers followed that behavior so the "Work Offline" button would actually work when I got on a plane. I'd be happy to sacrifice 10GB+ of my SSD for the browser to permanently cache (at least for the life of the Cache-Control header). I wonder how performant a proxy like Squid would be to run locally with a disk cache.