how to clear my clients cache next time they log in

Question

I have an application running on hostgator. When I make changes to the js files my users don\'t see the changes until they clear their cache. Is this the only option to pu

Answer 1

You need to use versioning on your file includes. Anytime you change the URI of your file includes, the browser won't find a cache match and will re-download the include.

For example:

Where 232 is your modifiable version number that should be changed whenever you release new code.

Alternatively, you can use query strings:

The point is that you should change the file include URI in some manner whenever you want your visitors to re-download the file.

If you use PHP or another server-side language, you can setup this versioning to occur automatically whenever your file includes are modified: http://derek.io/blog/2009/auto-versioning-javascript-and-css-files/