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[Suggestion] No-cache header

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Posted by Samson   USA  (683 posts)  [Biography] bio
Date Sun 02 Oct 2005 05:13 PM (UTC)
Message
A suggestion. Don't know if it's just the proxy at work or what but very often when I go to read the forum from there I am forced to do a reload several times to convince it that I want to see current data. It will often be holding some very stale copies in the cache. Maybe a no-cache header or something would solve this? It doesn't happen when I'm at home and not using a proxy.
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Posted by Nick Gammon   Australia  (23,016 posts)  [Biography] bio   Forum Administrator
Date Reply #1 on Sat 08 Oct 2005 12:28 AM (UTC)
Message
I'm not sure I can influence the HTTP headers. I don't notice the problem myself. Might be an aggressive proxy server that re-serves up the same page even when you hit refresh.

- Nick Gammon

www.gammon.com.au, www.mushclient.com
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Posted by Samson   USA  (683 posts)  [Biography] bio
Date Reply #2 on Sat 08 Oct 2005 02:40 AM (UTC)
Message
Yeah, that's what I'm thinking too, but I can't exactly go to the proxy admins and ask them to knock it off either :P

You might want to look into this:
http://us2.php.net/manual/en/function.header.php

Has some information that looks relevent, including an example of a no-cache header directive.
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Posted by Nick Gammon   Australia  (23,016 posts)  [Biography] bio   Forum Administrator
Date Reply #3 on Fri 04 Aug 2006 06:38 AM (UTC)
Message
OK, I added this to the header:


Cache-Control: no-cache, must-revalidate


See if that works better. :)

- Nick Gammon

www.gammon.com.au, www.mushclient.com
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