Clearing browser history after website update

We have a stand alone Xojo website running behind HA Proxy. After we updated it a few months ago, most (probably all) users experienced issues when they went to the site. We found that clearing the browser history and reloading the site would fix the issues. We are going to be updating the site again soon and my customer specifically asked that we update it in a way that would prevent a repeat of the last update.

Is there anything we can do or is this something in the web framework?

Rebuilding the web app should do it. Files that don’t have an intrinsic date associated with them get the app’s build date as their default. Browsers should recognize the date change and download the new files.

FYI - There was a bug regarding this in Xojo previous to 2014r2 which could cause browsers to continue to use the old framework files.