I see you over there 'spaw...and you are in range if I reload.

and to complicate the situation even more, most newer browsers have what is called 'session savers'....which means you can tell it exactly what you want 'saved' when you close it. You can have 14 tabs open, then close your browser for the night, and they can all be reloaded next day...exactly as you left them, so you can continue research ..etc.
This feature must be considered when you are trying to determine the relationship between what's on the **server**, what's in your computer's cache, and what's in your specific browser's cache.

It is possible to control VERY specifically exactly what your PC shows you and when to delete or change things, but it isn't a simple process, as it involves levels of caches and 'hidden' files that Micro$oft would rather you not find and mess with.
   I was startled to find that pages I had browsed in Firefox or Opera were carefully indexed in I.E. 'temp' folders, even though they had been deleted from MY browser's cache.