I figured out the following:
I run a 2.4.6 Apache as reverse proxy in front of serveral backend servers. Therefor I use Rewrite with P flag and ProxyPassReverse.
My config looks like this:
RewriteRule ^/cms/(([a-z]{2})(-[a-z]{2})?)_([a-z]{2,})/(.*)$ http://twww2_I.example.com:8080/cps/rde/xchg/${lc:$4}/hs.xsl/$5?Locale=$2&wsLocale=$1&wsCountry=$4 [P,NC,QSA,L]
<Location /cms/>
ProxyPassReverse /cps/rde/xchg/de/hs.xsl/
ProxyPassReverse /cps/rde/xchg/at/hs.xsl/
ProxyPassReverse /cps/rde/xchg/de-de/hs.xsl/
ProxyPassReverse /cps/rde/xchg/ch-fr/hs.xsl/
ProxyPassReverse /cps/rde/xchg/gb/hs.xsl/
ProxyPassReverse /cps/rde/xchg/us/hs.xsl/
ProxyPassReverse /cps/rde/xchg/en-us_us/hs.xsl/
ProxyPassReverse /cps/rde/xchg/en-gb_gb/hs.xsl/
ProxyPassReverse /cps/rde/xchg/es/hs.xsl/
ProxyPassReverse /cps/rde/xchg/fi/hs.xsl/
ProxyPassReverse /cps/rde/xchg/fi_fi/hs.xsl/
</Location>
Now I request a URL (http://www.example.com/cms/de_de/basket.htm) which send a redirect 302 to https. The RP changes the location to http and I have a loop.
I sniffered between client and RP and backend. It is really the RP.
In other scenarios where I just have
<Location /app/>
ProxyPassReverse /
</Locationn>
it works as it should.
With Apache 2.2 I don' t have this issue.
-----Original Message-----
From: Rainer Jung [mailto:rainer.jung@xxxxxxxxxxx]
Sent: Saturday, August 24, 2013 10:50 PM
To: users@xxxxxxxxxxxxxxxx
Subject: Re: Apache 2.4 ReverseProxy Issue
On 21.08.2013 13:42, Womann, Sven wrote:
> Sorry, I meant to write example.com...
>
> I use include my RP-Rules in a dedicated file.
> There I work with RewriteRule ^/(.*)$ http://internal.example.com/$1
> [P,QSA,L] ProxyPassReverse is used in a Location directive like
>
> <Location />
> ProxyPassReverse /
> </Location>
>
> The 302 Location is full qualified, so normaly the ProxyPassReverse shouldn' t match...
A standards conforming Location header always if a full URL.
The only reason for a ProxyPassReverse is fixing Location headers, so your assumptions are not valid here ;)
If your backend already provides the correct Location headers for any redirect, then remove the ProxyPassReverse.
> The header is set correctly, but the 302 changes in front of the RP.
Regards,
Rainer
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