I have been trying to set the content type for the returned portal page to application/xhtml+xml in order to enable firefox to display inline svg After a few experiments I've discovered that I can't affect the overall page content type by changing the top level layout jsp. A look at the Portal source indicated to me that the ContentTypeInterceptor class appears to always set the content type to MediaType.HTML I'm wondering why this is, and what a good suggested way of customizing this interceptor might be. My first thought is to subclass ContentTypeInterceptor and override invoke to deliver application/xhtml+xml, then just replace this interceptor in my deployment I'm curious about why this ContentTypeInterceptor does what it does as I can't understand why its a good idea to override the contentType directives in the users content. The only idea I can come up with is that it helps handle content rendered from third party portlets which may not generate xhtml properly, by dropping all content to a lowest common denominator text/html and UTF-8. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3960248#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...