Problem with mod_headers ?

André Warnier <aw@xxxxxxxxxx> · Tue, 30 Dec 2008 18:48:36 +0100

Hi.

I am a bit at my wit's end here.

Using Apache 2.2.3 under Suse Linux, with a mod_jk re-director to Tomcat 

for certain links, such as the one of which question below.

I am using a Tomcat java application which unfortunately sets the 

Content-Type response header wrongly : it says "text/html; 

charset=iso-8859-1" instead of "text/html; charset=iso-8859-2", and 

there is no way I can change that application itself.

So I am trying to rectify that header after-the-fact, using mod_headers.
Unfortunately, it does not seem to work.

I have this Vhost configuration (snippet) :

SetEnvIf REQUEST_URI "/servlet\.[^\.]+$" is-jk
Header always set Content-Type: "text/html; charset=ISO-8859-2" env=is-jk
Header always set Test-Header: "VHost level" env=is-jk

<LocationMatch "/servlet\.[^.]+$">
  SetHandler jakarta-servlet
  Header always set Content-Type: "text/html; charset=ISO-8859-2"
  Header always set Test-Header: "Location level"
</LocationMatch>

I capture the HTTP headers resulting from a request, using the 

LiveHttpHeaders plugin of Firefox, as follows (sorry for the email 

wrap-around, and sensitive bits edited-out with XXX):

POST /starweb/XXX/servlet.starweb HTTP/1.1
Host: XXX.XXX.XXX

User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.8.1.15) 

Gecko/20080623 Firefox/2.0.0.15

Accept: 

text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5

Accept-Language: en-gb,en;q=0.7,de-de;q=0.3
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 300
Connection: keep-alive

Referer: 

http://XXXX/starweb/wideoteka/servlet.starweb?path=wideoteka/wideoteka-sso.web&auth=y

Cookie: XXXX, JSESSIONID=3AD2CE2435CDCC2CFD3C90D7DF23868B
Pragma: no-cache
Cache-Control: no-cache
Content-Type: application/x-www-form-urlencoded
Content-Length: 273

HTTP/1.x 200 OK
Date: Tue, 30 Dec 2008 17:30:33 GMT

Server: Apache/2.2.3 (Linux/SUSE) mod_jk/1.2.28-dev-727724 

mod_perl/2.0.2 Perl/v5.8.8

Content-Type: text/html;charset=ISO-8859-1
Test-Header: Location level
Expires: Mon, 26 Jul 1997 05:00:00 GMT
Pragma: no-cache
Keep-Alive: timeout=15, max=100
Connection: Keep-Alive
Transfer-Encoding: chunked

As can be seen above, the "Test-Header" that I set with mod_headers 

comes out perfectly, from the Location section.

But the Content-Type header, which I believe should be set in the same 

exact conditions, does not.

Does anyone have an idea why ?

Thanks.

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