# config.yml
    docker:
      - image: webpackcontrib/circleci-jdk9-node9- CircleCI specific dependencies & runtime user configuration.
 - Docker tooling ( Engine, Compose, Dockerize ).
 - Node Version Manager ( Version defaults to node:latest )
 - Google Closure Compiler
 - Java JDK 9
 
This container does not have a headless browser configuration