Re: [users@httpd] Image caching / Expiry times / 304s

Matthew Claridge <mclaridge@xxxxxxxxxxxxx> · Wed, 07 Jun 2006 13:13:37 +0100

on 06/06/2006 15:35 Joshua Slive said the following:

On 6/6/06, Matthew Claridge <mclaridge@xxxxxxxxxxxxx> wrote:

on 06/06/2006 15:16 Joshua Slive said the following:

> On 6/6/06, Matthew Claridge <mclaridge@xxxxxxxxxxxxx> wrote:
>
>> Apache does send a Cache-control header of "max-age=0", which if I'm
>> right means it isn't updatiing the expiry time?
>
>
> It means the content is marked as expired.  What mod_expires config
> are you using?
>
> Joshua.

<Location /images/>
    <IfModule mod_expires.c>
        ExpiresActive On
        ExpiresByType image/jpg A432000
        ExpiresByType image/jpeg A432000
        ExpiresByType image/gif A432000
        ExpiresByType image/png A432000
        ExpiresByType image/ico A432000
    </IfModule>
</Location>

Seems like you have something else weird going on.  The config used on
www.apache.org is
     ExpiresActive On
     ExpiresDefault A86400

And yet I get updated (non-zero) cache-control headers on 304 responses:

telnet www.apache.org 80

Trying 192.87.106.226...
Connected to www.apache.org.
Escape character is '^]'.
GET / HTTP/1.1
Host: www.apache.org
If-Modified-Since:  Thu, 01 Jun 2006 14:07:19 GMT

HTTP/1.1 304 Not Modified
Date: Tue, 06 Jun 2006 14:31:19 GMT
Server: Apache/2.2.0 (Unix) mod_ssl/2.2.0 OpenSSL/0.9.7g
ETag: "20122-331e-4152a2fa513c0"
Expires: Wed, 07 Jun 2006 14:31:19 GMT
Cache-Control: max-age=86400

So it looks like you have something else in your config that is
resetting your cache-control headers.

Joshua.

Looks like this is actually a bug in the 2.0 branch - we're using RHEL, 

so we're stuck on the 2.0.46-x releases and this bug seems to have crept 

in to an early 2.0 release and been fixed in 2.0.49

http://issues.apache.org/bugzilla/show_bug.cgi?id=25123

What a waste of time. Sorry. Thanks for your help though.

Matt

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