This is what I use, seems to work pretty well. I put it into an include
file and use it in the header of all the pages I serve up that require
cache control.
I belive this was from someone else on the list from not too long ago:
<!--- Client side cache prevention --->
<!--- Setup our expire times for Netscape and Internet Explorer --->
<cfoutput>
<!--- Internet Explorer Date Formate: (Fri, 30 Oct 1998 14:19:41
GMT) --->
<cfset
MSIEtimestamp='#dateformat(now(),"DDD")#,#dateformat(now(),"DD")#
#dateformat(now(),"Mmm")# #timeformat(now(),"HH:MM:SS")#'>
<!--- Netscape Date Formate: Netscape (Wednesday, Apr 26 2000
17:45:25 PM) --->
<cfset
NETSCAPEtimestamp='#dateformat(now(),"DDDD")#,#dateformat(now(),"MMM")#
#dateformat(now(),"dd")# #dateformat(now(),"YYY")#
#timeformat(now(),"HH:MM:SS tt")#'>
</cfoutput>
<!--- Tell HTTP Header to force expire of page - nocache --->
<cfif HTTP_USER_AGENT contains "MSIE">
<cfheader name="Expires"
value="<cfoutput>#MSIEtimestamp#</cfoutput>">
<cfheader name="Pragma" value="no-cache">
<cfheader name="cache-control" value="no-cache, no-store,
must-revalidate">
<cfhtmlhead text='<meta http-equiv="Expires"
content="0">'>
<cfelse>
<cfheader name="Expires"
value="<cfoutput>#NETSCAPEtimestamp#</cfoutput>">
<cfheader name="Pragma" value="no-cache">
<cfheader name="cache-control" value="no-cache, no-store,
must-revalidate">
<cfhtmlhead text='<meta http-equiv="Expires"
content="0">'>
</cfif>
Joshua Miller
Head Programmer / IT Manager
Garrison Enterprises Inc.
www.garrisonenterprises.net
[EMAIL PROTECTED]
(704) 569-9044 ext. 254
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-----Original Message-----
From: Jared Clinton [mailto:[EMAIL PROTECTED]]
Sent: Monday, December 09, 2002 5:24 PM
To: CF-Talk
Subject: RE: Warning: Page has Expired
AFAIK:
To get the page has expired message, you have to have posted information
from a form submission.
But why would you want to?
Jared Clinton.
-----Original Message-----
From: Stevens, Jason [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, 10 December 2002 8:16 AM
To: CF-Talk
Subject: Warning: Page has Expired
I have no doubt that this is a no brainer but I can't seem to find the
answer. I've tried setting the expiration in the meta tag but it doesn't
seem to give me the result I want.
I want a page to expire if it is either refreshed or if someone tries to
hit the back button to see the page. How would I go about that? I would
like to invoke that standard page that we've all seen before with
"Warning: Page has Expired".
Thanks
-Jason
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