ASP Headers not refreshing AJAX in Firefox

[gyung]

Originally I had a problem with IE because I forgot to set the no-cache in the ASP pages that AJAX calls. Now that I added the headers, it works fine in IE, but still doesn't refresh properly in FF. I maintain the correct last browsed position using sessions, and works flawlessly in IE (so far), but FF, when the BACK button is used, it doesn't update.

I'm assuming is a cache problem, because as soon as I refresh the page manually (F5), it works fine (I programmed it that way).

I'm using:

    Response.AddHeader "Expires", "Mon, 08 May 1983 05:00:00 GMT"
 
    Response.AddHeader "Last-Modified", Now & " GMT"
 
    Response.AddHeader "Cache-Control", "no-cache, must-revalidate"
 
    Response.AddHeader "Pragma", "no-cache"
 
    Response.Expires = -1

I'm not sure if I'm not in the right section to ask, but hopefully there's another way to refresh using ASP... JSP didn't work for me either.

[gyung]

After lots and lots of searching, I found a script that is working.
I guess one of these things properly tell FF not to cache. Hope this will help someone with a similar problem :)

    Response.Expires = -1
    Response.AddHeader "Cache-Control", "no-cache"
    Response.AddHeader "Cache-Control", "private"
    Response.AddHeader "Cache-Control", "no-store"
    Response.AddHeader "Cache-Control", "must-revalidate"
    Response.AddHeader "Cache-Control", "max-stale=0"
    Response.AddHeader "Cache-Control", "post-check=0"
    Response.AddHeader "Cache-Control", "pre-check=0"
    Response.AddHeader "Pragma", "no-cache"
    Response.AddHeader "Keep-Alive", "timeout=3, max=993"
    Response.AddHeader "Expires", "Sun, 08 May 1983 05:00:00 GMT"

[iam_clint]

thanks for posting your fix it really helps for those unanswered questions, because someone out there will have a similiar problem and end up at this thread and see the fix :)

[Atli]

I'm betting its the

Response.AddHeader "Cache-Control", "no-cache"

that did the trick.

It worked for me in a simular situation a while ago.