After I make changes to my gallery in LR and upload them, I always check things out in a browser to make sure the changes are what I intended. Sometimes I get the old version of the page and have to refresh in order to see the new version. I am worried that this might happen to visitors who are coming back to the site - they will be seeing old versions of the pages and be totally unaware of it. Is there any way to prevent this from happening? Thanks.