When a webpage is viewed, the files that make-up the page are copied (downloaded) to your computer.
To make it faster to view webpages, a web browser can store or cache these files. Once files are in-cache, the browser no longer needs to download them each time the webpage is viewed, it simply uses ‘the ones it prepared earlier’.
You can control and change what your web browser does with files it downloads from the cache preferences.
You can set the amount of space on your computer (memory) that should used for storing downloaded files. You can also set how often cached files should be cleared.
To ensure that you are veiwing the most recent version of a webpage, you can manually clear the web browser cache.
Tools > Internet Options: |General|
“Temporary Internet files”panel, click
“Delete Files”dialogue box: check/select
“Delete all offline content”; click
Tools > Internet Options: |General|.
Tools > Advanced: |Network|.
[OK](bottom of the window).
Refreshbutton in the web browser tool bar.
Edit > Preferences.
“Advanced”drop down menu in the left panel.
[Clear Memory Cache]and
[Clear Disk Cache].
Frame-based pages are never stored in the back / forward cache. You can insure your non-frame based page behaves similarly by adding an invisible iframe.