Hey, Brad:
Ok. I feel a little stupid (situation normal). I dug a little deeper in MY code and realized the REST API handlers I’ve built extend a base REST object (does a lot of validation, etc.) required by our system. That superclass included a preHandler method, so as a result, was overriding the preHandler defined in the Coldbox.cfc, I guess. Once I moved my multi-lingual code there, everything functions correctly. Sigh.
I did have Logbox logging in the system preHandler, which was not being fired when I accessed the REST APIs, and that is what was confusing me.
Thanks for all your ideas and help. It definitely pointed me in the right direction!
Cheers!
Kevin S. Anderson