The CA API Gateway ("Gateway") is throwing errors when transacting with the Google Maps API. Depending on the configuration of the Gateway and it's certificate store, the errors encountered will range.
The common error encountered speaks to certificate validation / verification issues and a lack of trust for the certificate presented by Google's servers.
An example error encountered when key usage enforcement policies are in place: Unable to obtain HTTP response from <GoogleMapsAPI_URL>: Certificate not verified. Caused by: Certificate key usage or extended key usage disallowed by key usage enforcement policy for activity: sslServerRemote