How to process a form, but be able to use browser back button?

I have a situation where I am using a xforms:switch to render a tabbed form 
(very much like the vcard demo).

The issue I have is that I need to have a "preview" trigger on the last tab, 
which processes the current form data through a cocoon pipeline and displays 
the preview.  But I need the user to be able to hit the back button on the 
browser, and get back to the form display as it was when they hit the preview 
trigger.

What seems to happen is that I get the last form screen displayed (from the 
browser cache), but if you click on a tab you get a blank page.

Is there a preferred way of getting this kind of behaviour with Chiba?

Andrzej Jan Taramina
Chaeron Corporation: Enterprise System Solutions
http://www.chaeron.com



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