Tomcat – Apache forwarding to tomcat shows a blank page

apache-2.2mod-proxyproxypasstomcat

I have an application running on tomcat at http://www.example.com:9090/mycontext. The host name in server.xml points to www.example.com. I do not have localhost anymore. I am using apache to forward requests to tomcat using mod_proxy. Things work fine as long as the ProxyPath is /mycontext. The server name setup in virtual host is www.abc.com and http://www.abc.com/mycontext works fine. However I would like to ignore the context path and simply use http://www.abc.com/ to forward requests to http://www.example.com:9090/mycontext. When I do this, apache shows me a blank page. What am I missing here? I have not changed anything in server.xml except the default host to www.example.com. 

<VirtualHost *:80>
 ServerName www.abc.com

 ProxyRequests Off
 ProxyPreserveHost On

 <Proxy *>
 Order deny,allow
 Allow from all
 </Proxy>

 ProxyPass / http://www.example.com:9090/mycontext
 ProxyPassReverse / http://www.example.com:9090/mycontext
 </VirtualHost>

Thanks

Best Answer

Matching trailing slashes are important in mod_proxy.

ProxyPass / http://www.example.com:9090/mycontext

This will take a request to http://www.abc.com/something and proxy it to http://www.example.com:9090/mycontextsomething - not terribly helpful!

Try this configuration, instead:

ProxyPass / http://www.example.com:9090/mycontext/
ProxyPassReverse / http://www.example.com:9090/mycontext/

Also - if Tomcat's expecting www.example.com as a host header, then you probably do not want that ProxyPreserveHost On directive.

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