Hi
I am having trouble with a forms authentication web app that I am working on. Clicking the back button gives the error message 'web page has expired'. I've found a lot of threads on this but the solution always seems to be removing a line of code relating
to the caching behaviour - I can find no such code in my app. I've seen other solutions suggesting variations of the following code in page headers...
Context.Response.Cache.SetCacheability(HttpCacheability.Public)
This doesn't work for me either. All of my previous apps have been windows authentication and I've never had the issue before, so I assume this is something to do with the forms authentication. Any help would be greatly appreciated.
Thanks
Steve
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