edibility of honey locust leaves/pods

I wonder if the reactions that people are getting are perhaps due to oxalate crystals in the pods or something similar?  I only got the reaction when eating part of the pod but when scooping out the pulp then just drying that part i had no reaction at all and it was fine.  The pain from the pod part reminded me of eating beets that had too high of an oxalate content.  

I ate some young honey locudt leaves yesterdsy. They were delicious. Springtime here in Victoria Australis