I am running Apache in front of a Tomcat instance. Apache proxies every request that comes through and passes it on to Tomcat. The current configuration is such that Apache puts a ProxyPass
on the root (/). There are however, new requirements, which specify that a call to the root of the domain should return a static splash page, and any other call should be proxied.
This means:
www.domain.com -> static page
www.domain.com/username - proxy to Tomcat
Making multiple ProxPass directives is not a good idea, because there are a lot of paths that must be supported by the Tomcat instance, and many of them change.