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From Plüm, Rüdiger, VF-Group <ruediger.pl...@vodafone.com>
Subject AW: new webaccel appliance
Date Tue, 18 Sep 2007 16:46:00 GMT


> -----Ursprüngliche Nachricht-----
> Von: Fernando - Dfcom 
> Gesendet: Dienstag, 18. September 2007 16:18
> An: dev@httpd.apache.org
> Betreff: new webaccel appliance
> 

> 
> 
> debian:/cache# grep 'fd.jpg?' * -r
> Binary file 
> 3IT/6la/Omd/Jn@/287/BxY4K0g.header.vary/uaR/FRo/84M/RjT/oFp/MO
> eRbRg.header 
> matches
> Binary file 
> 3IT/6la/Omd/Jn@/287/BxY4K0g.header.vary/3qK/eDq/v0G/pKc/LmQ/eK
> 1JffA.header 
> matches
> 
> 
> debian:/cache# cat 
> 3IT/6la/Omd/Jn@/287/BxY4K0g.header.vary/uaR/FRo/84M/RjT/oFp/MO
> eRbRg.header
> È"¤õ_:Þt:)ÍÀf:
>               &ÕÀf:http://teste.com.br:80/img/fd.jpg?Date: 
> Tue, 18 Sep 2007 
> 02:48:34 GMT
> Server: Apache
> Last-Modified: Thu, 21 Jun 2007 16:01:32 GMT
> ETag: "dd09a4-1aa-a904ef00"
> Accept-Ranges: bytes
> Content-Type: image/jpeg
> Via: 1.1 teste.com.br
> Vary: Accept-Encoding
> Content-Encoding: gzip
> 
> Host: www.rodadaalimentos.com.br
> User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; pt-BR; 
> rv:1.8.1.5) 
> Gecko/20070713 Firefox/2.0.0.5
> Accept: image/png,*/*;q=0.5
> Accept-Language: pt-br,pt;q=0.8,en-us;q=0.5,en;q=0.3
> Accept-Encoding: gzip,deflate
> Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
> Referer: http://www.rodadaalimentos.com.br/estilos.css
> Max-Forwards: 10
> Via: 1.1 teste.com.br
> X-Forwarded-For: 201.81.185.230
> X-Forwarded-Host: www.rodadaalimentos.com.br
> X-Forwarded-Server: teste.com.br
> 
> 
> debian:/cache# cat 
> 3IT/6la/Omd/Jn@/287/BxY4K0g.header.vary/3qK/eDq/v0G/pKc/LmQ/eK
> 1JffA.header
> È"@Ééð_:@)Át:H²µ¼f:¼¼¼f:http://teste.com.br:80/img/fd.jpg?Date
> : Tue, 18 Sep 
> 2007 02:47:25 GMT
> Server: Apache
> Last-Modified: Thu, 21 Jun 2007 16:01:32 GMT
> ETag: "dd09a4-1aa-a904ef00"
> Accept-Ranges: bytes
> Content-Type: image/jpeg
> Via: 1.1 teste.com.br
> Vary: Accept-Encoding
> Content-Encoding: gzip
> 
> Accept: */*
> Referer: http://www.rodadaalimentos.com.br/inscritos.html
> Accept-Language: pt-br
> Accept-Encoding: gzip, deflate
> User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)
> Host: www.rodadaalimentos.com.br
> Max-Forwards: 10
> Via: 1.1 teste.com.br
> X-Forwarded-For: 201.81.185.230
> X-Forwarded-Host: www.rodadaalimentos.com.br
> X-Forwarded-Server: teste.com.br

This works "as designed". Please see the difference between the accept headers sent by
IE6 and Firefox

IE6    : Accept-Encoding: gzip, deflate
Firefox: Accept-Encoding: gzip,deflate

IE6 adds an additional space between gzip and deflate.
As the response varies on Accept-Encoding two representations of the response get saved
(which are actually the same).
It could be argued that this should not matter.

Regards

Rüdiger


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