Thanks, I had assumed localhost and localhost:port would be considered the same domain but they are not ( so probably the reason for the CORS errors I'm getting). The working webserver "http://spark.furore.com/fhir/Patient" is a public non-healthshare repository that you can query against. It is sending back response headers that allow the query to process and return data.

Ok thanks for the info. Just seeing what possibilities are out there right now. Was looking at installing SMART apps ( with OAuth2) to view content inside the FHIR repository I configured.

Doing the following: do ##class(HS.Util.Installer.FHIRServices).OAuthServer()

Threw the following error: "Information Exchange Registry namespace not found in this instance.
OAuth Server must be in the same instance as the Registry."