Why is :malformed? comes before :known-content-type?. The example got me confused, since it basically tries to parse the body first then actually checking the content type if it is supported

And in this issue https://github.com/clojure-liberator/liberator/issues/29. It suggests body parsing to be done in :valid-content-header?. If it's a better place, what is the "correct" way of using :malformed? decision point?