2013-03-10 NSScreencast Episode #15 HTTP Caching NSScreencast ios HTTP Caching - NSScreencast cache-tester heroku app curl Etag, Last-Modified Cache-Control: max-age=10 curl -I -H "If-None-Match: \"xxxxxxx\"" 304 Not Modified curl -I -H "If-Modified-Since: DATE" Charles HTTP monitor FIlter url Pods SDURLCache in the beginning of application prepareCache SDURLCache, memory capacity, disk capacity cacheinfo.plist