Prevent back page visit after logout in seam

[eswaramoorthy1986]

Dear All



how to  prevent back page visit after logout in seam . I would be thankful if you could help me on this issue

I use this code for logout

Name("authenticator")
public class Authenticator
{
    @Logger private Log log;

    @In Identity identity;
   
    public String authenticate() {
         log.info("User logged in: " + identity.getPrincipal().getName());
         
        return "home";
    }
   
    public String logout() {
       log.info("User logging out..");
         identity.logout();
         Session.instance().invalidate();
         return "login";
    }

}