SFCoder

So, basically, every developer hits this problem, unless they ditch safari for chrome, and even then they might hit it. This is a very normal setting for a not insignificant number of apple users. (I can look around and find about 40 of them without getting out of my chair.) As for the apologists, the settings are so that they test the same across all computers. Disabling caching shouldn't make your laptop randomly have 20% of the battery life it normally does. It makes it completely unusable for developing websites on. It's a bit ironic that this turns out to be a bug that primarily effects developers, it implies a certain lack of dogfooding at apple.