All requests to these servlets will go through the CacheFilter.
Cached objects expire in 5 seconds.
If a cache miss returns a blank page, that breaks the Flash Microsite that is calling this service.
The CacheFilter must always return the page in order for the system to work.

Servlet using forward (servlet uses RequestDispatcher.forward to dispatch to JSP, does not work)
Servlet using include (servlet uses RequestDispatcher.include to dispatch to JSP, works)
Servlet printing to OutputStream (servlet prints directly to Response's OutputStream, works)