In the %JBOSS_HOME%\server\< serverName>\deploy\jbossweb-tomcatXX.sar\conf\web.xml file, there's a filter mapping: | <filter> | <filter-name>CommonHeadersFilter</filter-name> | <filter-class>org.jboss.web.tomcat.filters.ReplyHeaderFilter</filter-class> | <init-param> | <param-name>X-Powered-By</param-name> | <param-value>Servlet 2.4; JBoss-4.0.5.GA (build: CVSTag=Branch_4_0 date=200610162339)/Tomcat-5.5</param-value> | </init-param> | </filter> | | <filter-mapping> | <filter-name>CommonHeadersFilter</filter-name> | <url-pattern>/*</url-pattern> | </filter-mapping> Try removing this entire section or maybe just the init-param (I haven't tried so don't exactly know whether removing the entire filter mapping will cause any issues). View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4178682#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...