Just in case anyone else goes looking for a resolution that doesn't involve using a package from unstable, there is a workaround documented on this link (http://issues.apache.org/bugzilla/show_bug.cgi?id=37770#c34) that worked for me. Add the following two lines to file httpd.conf: SetEnv force-proxy-request-1.0 1 SetEnv proxy-nokeepalive 1 Hope that helps someone... James