anchor.diff:  
   ===== Headers
   
  -In order to extract headers you should use the `get-headers` function. As usual, it is a
  -polymorphic function and you could use it with a context instance without problems. The
  -return value is a clojure map.
  +Like the http request body, the http headers are available through the `:headers` key
  +entry. In order to extract some header, just perform the apropiate lookup:
  +
  +[source, clojure]
  +----
  +(get-in context [:headers :origin])
  +;; => "https://github.com"
   
   If a header has multiple values, the value will be a vector.
  -
  -[source, clojure]
  -----
  -(ct/get-headers context)
  -;; => {:content-type ...}
  -----
   
   
   ===== Cookies
  
positive.code:   (ct/run-server my-hello-world-handler))
  ----
  
  
  _Catacumba_ comes with a little collection of <<examples,Examples>> that may help you
  setup your first project.
  
  
  
negative.code: ----
  (def myechohandler
    [context]
    (let [^String body (slurp (:body context))]
      (http/ok body)))
  ----
  
  The `slurp` function uses the abstractions defined on the `clojure.java.io` namespace
  for read the content of the provided resourse as string and return it.
  
  Furthermore, _catacumba_ offers a more flexible way to parsing body data based on the
  incoming content type, but it is explained with more details in the
  