> So maybe I should enable this... After enabling WARN, I'm getting stuff like: 2013/10/15 09:54:27| WARNING: found whitespace in HTTP header name {Cache Control: no-cache} 2013/10/15 09:54:27| WARNING: found whitespace in HTTP header name {Cache Control: no-store} 2013/10/15 09:54:27| WARNING: found whitespace in HTTP header name {Cache Control: must-revalidate} 2013/10/15 09:54:27| WARNING: found whitespace in HTTP header name {Cache Control: max-age=0} and 2013/10/15 01:15:45| WARNING: unparseable HTTP header field {: } 2013/10/15 01:18:19| WARNING: unparseable HTTP header field {: } and 2013/10/15 07:47:15| WARNING: unparseable HTTP header field {::RETURN::NOTAVAILABLE::/mibe/404/ in the ActVersionMode} 2013/10/15 09:35:11| WARNING: found whitespace in HTTP header name {JSESSIONID=AC28912A7C462A9752761882F4A31BCE; Path=/cae: } 2013/10/15 09:35:11| WARNING: found whitespace in HTTP header name {JSESSIONID=AC28912A7C462A9752761882F4A31BCE; Path=/cae: } Just for the fun of it: How do I correlate these warning to actual requests done by clients? -- Ralf Hildebrandt Charite Universitätsmedizin Berlin ralf.hildebrandt@xxxxxxxxxx Campus Benjamin Franklin http://www.charite.de Hindenburgdamm 30, 12203 Berlin Geschäftsbereich IT, Abt. Netzwerk fon: +49-30-450.570.155