I was reading this: http://docs.codehaus.org/display/JETTY/LastModifiedCacheControl
It says
The Jetty default servlet allows the cache control hea
Need to add the following to your web.xml
<servlet> <servlet-name>default</servlet-name> <servlet-class>org.mortbay.jetty.servlet.DefaultServlet</servlet-class> <init-param> <param-name>cacheControl</param-name> <param-value>max-age=3600,public</param-value> </init-param> </servlet>