bland that is because your browser caches the files. It is common practice to always either refresh the browser (even better hit Ctrl+F5 to clear the cache) or to just close your browser after each preview and let it launch a new one. That is not a bug, that is just the way browsers work.
Not entirely true, C2 has a update type version number that when doesn't equal cached version number should flush c2 cache and show updates correctly. I know c2 has something like that build in, problem is that it goes wack eyed periodocally. This is the same thing that updates html5 games to latest release etc etc. Your end user can't be expected to refresh if he wants to install new version of game I don't know how ashley has designed it, but it used to work. lol.
But I do agree its good practice to flush the cache as a programmer, but it isn't good if it is designed to self update and it isn't
Ashley, sorry I created another bug report on same topic, I didn't see this one. I can confirm 100% it is also Internet Explorer. So it is all 3 browsers.