The project is a elasticsearch plugin collection, You can use it in green, not need to modify your elasticsearch any configuration
./run.sh start
# if you want use head , you must take this setting to your elasticsearch.yml
http.cors.enabled : true
http.cors.allow-origin : "*"
http.cors.allow-methods : OPTIONS, HEAD, GET, POST, PUT, DELETE
http.cors.allow-headers : X-Requested-With,X-Auth-Token,Content-Type, Content-Length