I noticed that Immutant immutant.web.middleware/wrap-session function doesn't set a ring-session cookie by default

the wrap-session middleware in Ring core does the [following](https://github.com/ring-clojure/ring/blob/eaf3af0449ad96b3f036a1ea9391af797e3654d9/ring-core/src/ring/middleware/session.clj#L17):

(defn- session-options
  [options]
  {:store        (options :store (mem/memory-store))
   :cookie-name  (options :cookie-name "ring-session")
   :cookie-attrs (merge {:path "/"
                         :http-only true}
                        (options :cookie-attrs)
                        (if-let [root (options :root)]
                          {:path root}))})

I think it would be good to match this behavior as other middleware can rely on the cookie name

does anybody know if immutant has any proxyname configuration similar to tomcat, for when it's run behind a proxy?