Ok I got it working using a ..pages.xml entry.
<header name="Cache-Control" value="no-cache, no-store, max-age=0, must-revalidate" />
This does not help me though, so I started looking for back button implementations. I saw a lot of articles forums on how Seam should be able to handle this. But it does say how to implement this(???). I tried lots of tweaks but I can't get it to work.
How can I call the back button and see the correct state of the shopping cart, not the previous state? Or do I need to use jbpm?
Hope anyone can provide me with some info, thanks