So I have following configuration for Sync Gateway which connected to my Couchbase Server:
/opt/couchbase-sync-gateway/bin/sync_gateway -url="http://xxx.xxx.xxx.xxx:8091-bucket=“default” -interface=“xxx.xxx.xxx.xxx:4984” -adminInterface=“xxx.xxx.xxx.xxx:4985”
I have tested the Pull and Push, both working perfectly.
The response status is 200, response body is just only two characters: 
I also tried to get the available users by doing GET on: http://xxx.xxx.xxx.xxx:4985/default/_user
But I just get the same response status 200 with response body only two characters: 
Am I missing anything here?