Merge branch 'master' of github.com:hapifhir/hapi-fhir-jpaserver-starter

src/main/java/ca/uhn/fhir/jpa/starter/JpaRestfulServer.java

@@ -190,6 +190,7 @@ public class JpaRestfulServer extends RestfulServer {
             config.addAllowedHeader("Accept");
             config.addAllowedHeader("X-Requested-With");
             config.addAllowedHeader("Content-Type");
+            config.addAllowedHeader("Prefer");
 
             config.addAllowedOrigin(HapiProperties.getCorsAllowedOrigin());
 

src/main/resources/hapi.properties

@@ -2,7 +2,7 @@
 # Adjust this to set the version of FHIR supported by this server. See
 # FhirVersionEnum for a list of available constants. Example values include
 # DSTU2, DSTU3, R4.
-fhir_version=DSTU3
+fhir_version=R4
 
 # This is the address that the FHIR server will report as its own address.
 # If this server will be deployed (for example) to an internet accessible