simply....because we don't use ajax4jsf in our project and this will remove a useless filter (for our project) and also remove the need to include richefaces* jar in our ear files. Maybo also sightly improve performance(?) and reduce the loength odf stacktraces ..lol IMHO, there should be an option in seam to simply disable the ajax4jsf filter View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4091012#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...