Forcing a Page to Load from the Server
You can control the browser cache with a meta tag:
Setting the content to "0" tells the browsers to always load the page from the web server. You can also tell the browsers how long to leave a page in cache. Instead of "0", you write the date, including time, that you would like the page to be reloaded from the server. Note that the time should be in Greenwich Mean Time (GMT) and written in the format Day, dd Mon yyyy hh:mm:ss. Like this: