Header set Cache-Control "max-age=0, no-cache, no-store, must-revalidate"
Header set Pragma "no-cache"
Header set Expires "Wed, 11 Jan 1984 05:00:00 GMT"
Header set Pragma "no-cache"
Header set Expires "Wed, 11 Jan 1984 05:00:00 GMT"
If you're using URL rewriting, enter the above in the extra .htaccess content box at Admin -> Settings -> SEO so that it'll get included every time the .htaccess is recreated. If not using URL writing, you can make your own .htaccess file with that content in the directory where you've installed WSN.