When setting the header's Content-Type to 'application/xml' or 'application/json' the server returns the DSTU2 standard Content-Type response.

[VictorHarris]

When setting the header's Content-Type to 'application/xml' or 'application/json' the server returns the DSTU2 standard Content-Type response.

For example, including the header Content-Type: application/xml in the request prompts the server to return Content-Type:application/json+fhir in the response. It should be fhir+json.

Ref: https://www.hl7.org/fhir/http.html#mime-type