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Using the browser's Webcache [message #175070]

Wed, 10 August 2011 09:50

Luke
Messages: 10
Registered: June 2011

Karma:

Junior Member

Hi,

I'm trying to utilize the browser's Webcache with php. I have a
timestamp of the time when my site has been changed and I'm trying to
send a "304 Not Modified" if the user already has my page in his
cache. I'm using the function described on this page [1] under "Use
PHP to force a conditional GET". I also added the headers

header("Cache-Control: public");
header("Expires: Thu, 15 Apr 2012 20:00:00 GMT");
header("Pragma: cache");

but the page gets reloaded every time. These are the headers from the
server:

Status-Code:200 OK
Cache-Control:public
Connection:Keep-Alive
Date:Wed, 10 Aug 2011 08:20:44 GMT
Etag:"b393df7221a36ce8e02e96c7df308a16"
Expires:Thu, 15 Apr 2012 20:00:00 GMT
Keep-Alive:timeout=15, max=99
Last-Modified:Wed, 10 Aug 2011 07:50:04 GMT
Pragma:cache

I really can't figure out what the problem is.

Greetings from Germany
Lukas

[1] http://www.askapache.com/php/speed-up-sites-with-php-caching.html

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[Message index]

		Using the browser's Webcache By: Luke on Wed, 10 August 2011 09:50
		Re: Using the browser's Webcache By: Jerry Stuckle on Wed, 10 August 2011 10:57
		Re: Using the browser's Webcache By: Luke on Thu, 11 August 2011 08:54
		Re: Using the browser's Webcache By: Jerry Stuckle on Thu, 11 August 2011 10:45

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