I have this annoying problem with Safari 6, each time I go back or forward (both the toolbar buttons or two singer swipe) the tab refreshes. Here is a quick video to illustrate the problem: https://dl.dropbox.com/u/3257155/safari-refresh.mov
Normally I wouldn't really mind, it kinda grown on me over time (I'm not really sure this started when I updated to Safari 6 or to Mountain Lion - there was about a week between the updates), but my client found a bug in the web app I build (some buttons stop responding when he goes back - he is still on Lion) and I can't reproduce the problem because my Safari refreshed every time.
So my question is, what is the normal behavior for Safari? And how/if can I make Safari not refresh?
Turns out the problem was that Safari doesn't (by default) fire the onLoad even when on the "back action". I couldn't reproduce the bug on my machine because apparently the 1password extension causes the onLoad event even when you go back.