There's an issue when attempting to perform a cfhttp call inside of Docker to localhost on MacOSX.
For some reason, this issue does not appear to exist on Windows. Instead of hitting localhost, you must use the
"Service Name" as defined in your docker-compose.yml file, and the container's exposed port
(NOT the one you're using outside of the container).
version: '3.3'
  services:
    myservice: