Credit for that solution goes to the guys at Cynergy.

The max-age value lets a cached version sit on the client for x 
seconds for cases where you want to read new data periodically, but 
not necessarily on every visit.  Perfect for my needs.

--- In [EMAIL PROTECTED], "iko_knyphausen" <[EMAIL PROTECTED]> wrote:
>
> 
> First of all, thanks much to everyone for helping out. You saved me 
a
> lot of head-ache. I ended up with the latest suggestion from Doug
> 
> Response.CacheControl = "max-age=0, must-revalidate"       (this is
> ASP/VBscript)
> 
> This seems to do the trick ...
> -Iko
> 
> 
> --- In [EMAIL PROTECTED], "Doug Lowder" <douglowder@> 
wrote:
> >
> > Ran into the same problem here. The root issue is a bug in some
> > versions of IE. You can apply an MS patch at all clients (likely 
not
> > a feasible solution), or set the cache-control header to "max-
age=0,
> > must-revalidate". That header seems to work across all browsers,
> > with or without SSL.
> >
> > --- In [EMAIL PROTECTED], "iko_knyphausen" iko@ wrote:
> > >
> > >
> > > It works ok in FF but not in IE. Peter Farland kindly had a long
> > > exchange with me offline, and it seems in my case that the 
offending
> > > HTTP response is in the header pragma "CacheControl = No-cache".
> > Problem
> > > is, without the pragma I am not getting up-to-date data from my
> > > HTTPService requests.
> > >
> > > So the problem has been isolated, but not solved just yet.
> > >
> > >
> > > --- In [EMAIL PROTECTED], Tom Chiverton 
<tom.chiverton@>
> > > wrote:
> > > >
> > > > On Sunday 08 Apr 2007, iko_knyphausen wrote:
> > > > > in relative URL calls. And I think it does, because the web 
site
> > > accepts
> > > > > both SSL and non-SSL, and the errors I am receiving don't 
happen
> > > when I
> > > > > load the same app from the same location without https.
> > > >
> > > > Are you using IE ? Does Firefox work fine on the SSL site ?
> > > > If you use a network traffic sniffer, what is going on ?
> > > >
> > > >
> > > > --
> > > > Tom Chiverton
> > > > Helping to vitalistically administrate cutting-edge products
> > > > on: http://thefalken.livejournal.com
> > > >
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