add --no-optional in the hopes of fixing things

Dockerfile.port

@@ -17,7 +17,7 @@ RUN \
                 /app/d-zone && \
         echo "**** run npm install and build D-Zone ****" && \
                 cd /app/d-zone && \
-                npm install && \
+                npm install --no-optional && \
                 npm run-script build && \
         echo "**** delete git as we no longer need it ****" && \
                 apk del --purge \