Decoding a falsy http response body causes error

[lotuc]

muuntaja.core/decode-response-body will throw error on falsy values:

(require '[muuntaja.core :as m])

(m/decode-response-body
 {:body "null" :headers {"Content-Type" "application/json"}})
(m/decode-response-body
 {:body "false" :headers {"Content-Type" "application/json"}})
(m/decode-response-body
 {:body "false" :headers {"Content-Type" "application/edn"}})

It's caused by the code here.

[ikitommi]

Oh, that's not good. PR welcome.