Warning: Page has Expired

[Coder Coder]

Hi, I get the following message when the back-button is clicked
"Warning: Page has Expired". This message only appeared after I used
the following line of code.

Page.Response.Expires = 20;


Is there any way to avoid that message and still use the power of the
Cache.

- Thanks

[Alvin Bruney]

you won't get that error if there is server side activity. increase the
timeout
"Coder Coder" <coder5811@yahoo.com> wrote in message
news:f547ce3b.0307291315.39c9d80d@posting.google.c om...

> Hi, I get the following message when the back-button is clicked
> "Warning: Page has Expired". This message only appeared after I used
> the following line of code.
>
> Page.Response.Expires = 20;
>
>
> Is there any way to avoid that message and still use the power of the
> Cache.
>
> - Thanks

[david_sternberg]

After researching this problem through the archives. I have found numerous
fixes for this issue of which none have worked for me. I'm running ColdFusion
Server Enterprise 7,0,0,91690. This problem occurs after I click the back
button on the browser to a page where a form was submitted. This is a recent
problem that surfaced this week. Last week this was not an issue. We did not
upgrade or anything. My users are going ape-crap about this.

I have tried the following tags that I have found in forums:

<cfheader name="cache-control" value="Public">
<CFHEADER NAME="Cache-Control" VALUE="max-age=7200">
<CFHEADER NAME="cache-control" VALUE="private">
<CFHEADER NAME="cache-control" value=7200>

None have worked for me.

Some one recommended using the code below and the user said it fixed the
problem. It did not for me:
<CFHEADER NAME="Cache-Control" VALUE="max-age=7200">
<cfcache action="CLIENTCACHE" timespan="#CreateTimeSpan(0,1,0,0)#">

This seems to be a known issue my Macromedia. They said it was fixed in
updater3 of cf mx 6.1 but did they screw up and not have the fix in the 7.0s?

I'm running my apps on cf mx on a linux box. I don't have access to the
administration of the machine.

Any suggestions would be great.
Thanks
Dave