This is a problem I've seen reported on very old versions of mod_jk, but it seems (apparently) to have a new life in 1.2.27 and possibly other recent versions.
If a user puts a double slash (http://mysite.com//myapp/myjsp.jsp) instead of a single slash in a url, apache does not recognize it as part of a normal pattern (eg JkMount /myapp/*.jsp) to be forwarded to tomcat and displays it as html/text instead of as a jsp, revealing the source. My system: Httpd: Apache 2.0.46 Jk: 1.2.27 (from binary posted on http://apache.mirrors.timporter.net/tomcat/tomcat-connectors/jk/binaries/lin ux/jk-1.2.27/i386/mod_jk-1.2.27-httpd-2.0.61.so) Tomcat: 5.5.27 I'd be happy to hear someone say I misconfigured something, but I'm not sure what I could misconfigure to make this happen. I've worked around by doing things like JkMount /*.jsp ajp13 JkMount /*.do ajp13 Etc, but this is not a good solution. George Payne