Kajover

Thank you very much! Interesting why it worked before but it makes sense.

Use the option provided by WP Super Cache (quoted below) and add your page for instance “/contact/” to the list.

Add here strings (not a filename) that forces a page not to be cached. For example, if your URLs include year and you dont want to cache last year posts, it’s enough to specify the year, i.e. ’/2004/’. WP-Cache will search if that string is part of the URI and if so, it will not cache that page.

Thank you, but this is what I did the first time and it did not work, unless I left something out. It would be great if it could delete the user’s cookies or cache (I do not know about that) upon clicking the link redirecting the user to the other design.

It could maybe help if WP Super Cache empties the cache after someone clicked at the hyperlink (“site.com/?wptheme=test”). Can this be done somehow?