Unable to instrument function in dependecy for debugging

[gerdint]

If I go to a function in one of my deps (such as ring.middleware.session.cookie) and try to instrument a function there, such as the below on line 77 (in v1.9.5):

(defn- ^String serialize [x options]
  {:post [(= x (deserialize % options))]}
  (pr-str x))

... the function does not seem to be instrumented for debugging when invoking Calva Debug: Instrument Top Level Form for Debugging.

[PEZ]

I wonder why it doesn't work. We may need to look at what nrepl is doing when instrumenting. Also would be interesting to see if this works with CIDER.

[gerdint]

Yeah, CIDER's behaviour would be enlightening.