What AOL says, and what they actually do, are two completely different
things. Not only do they cache pages with URL variables, they cache form
submissions, cookies and HTTP authentication headers. I've had several of my
dynamic sites compromised in this way, and in one case had a serious
security violation caused by their caching of the HTTP authentication
headers.
AOL is not a good neighbor, and they do not act in good faith.
Michael J. Sheldon
Internet Applications Developer
Phone: 480.699.1084
http://www.desertraven.com/
PGP Key Available on Request
-----Original Message-----
From: MATTHEW EHRENS [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, May 03, 2000 15:18
To: [EMAIL PROTECTED]
Subject: Re: [RE: AOL and Caching]
AOL does not cache objects containing a Question Mark. This is checked
first,
regardless of file extension / mime type. Most CFM's fall under this
category
... however, your root page will probably not: ie: http://www.company.com/
....
Other than that, you can use those Cache-Control Headers Michael Sheldon
mentioned below. You really should only need Cache-Control Headers for
objects that don't contain question marks...
More details on AOL's caching at:
http://webmaster.info.aol.com/index.cfm?article=12
Thanks,
Matt
--------------------------------------------------
"Mike Sheldon" <[EMAIL PROTECTED]> wrote:
The following has worked for me in preventing AOL from caching dynamic
pages. Note that this must be included in ALL pages you do not wish to be
cached. (I like to put it in Application.cfm)
<CFSET gmts = gettimezoneinfo()>
<CFSET gmt = gmts.utcHourOffset>
<CFIF gmt EQ 0>
<CFSET gmt = "">
<CFELSEIF gmt GT 0>
<CFSET gmt = "+" & gmt >
</CFIF>
<CFHEADER NAME="Pragma" VALUE="no-cache">
<CFHEADER NAME="Cache-Control" VALUE="no-cache, must-revalidate">
<CFHEADER NAME="Last-Modified" VALUE="#dateformat(now(), 'ddd, dd mmm
yyyy')# timeformat(now(), 'HH:mm:ss') GMT#gmt#">
<CFHEADER NAME="Expires" VALUE="Mon, 26 Jul 1997 05:00:00 GMT">
Michael J. Sheldon
Internet Applications Developer
Phone: 480.699.1084
http://www.desertraven.com/
PGP Key Available on Request
-----Original Message-----
From: Skip Ogden [mailto:[EMAIL PROTECTED]]
Sent: Monday, May 01, 2000 18:55
To: [EMAIL PROTECTED]
Subject: AOL and Caching
I searched the archives (or should I say struggled through them) and found
nothing.
Is there something I need to know regarding CF and AOL? AOL seems to be
caching templates and serving them instead of pulling up the latest and
greatest.
Thanks in advance.
Skip Ogden
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