    # File lib/merb-core/dispatch/cookies.rb, line 96
        def self.included(base)
          # Allow per-controller default cookie domains (see callback below)
          base.class_inheritable_accessor :_default_cookie_domain
          base._default_cookie_domain = Merb::Config[:default_cookie_domain]

          # Add a callback to enable Set-Cookie headers
          base._after_dispatch_callbacks << lambda do |c|
            headers = c.request.cookies.extract_headers("domain" => c._default_cookie_domain)
            c.headers.update(headers)
          end
        end