Neo4j javascript example error: WebSocket connection to 'ws://localhost:7687/' failed: ERR_CONNECTION_REFUSED

I am trying to make the example neo4j javascript project run in my work machine. npm install completed fine and I am able to run the webpack dev using npm run dev.

When I navigate to the test page, http://localhost:8080/webpack-dev-server, the page renders fine but does not connect to the running Neo4j instance. There are no passwords, etc in the file. The error message is:

WebSocket connection to 'ws://localhost:7687/' failed: Error in connection establishment: net::ERR_CONNECTION_REFUSED

org.neo4j.server.webserver.address=0.0.0.0 in the neo4j-server.conf and dbms.connector.bolt.address=0.0.0.0:7687 in neo4j.conf

Neo4j version: 2.3.8

Please advise if some other settings are needed.

via anarche