anchor.diff: -FROM node:8.4-slim
  +FROM node:8.7-slim
   
   # Update container and install packages 
   RUN apt-get update 
  
positive.code: 
  # Link neuroglancer and install ndviz dependencies
  COPY package.json /usr/src/app/
  RUN npm link neuroglancer 
  RUN npm install
  
  # Bundle app source
  COPY . /usr/src/app
  
  # Compile typescript and copy files 
  RUN npm run build 
  
negative.code: RUN apt-get -y install git 
  
  # Install webpack and webpack-dev-server globally
  RUN npm install -g webpack@^3.5.5
  RUN npm install -g webpack-dev-server@^2.2.0
  
  # Install neuroglancer from neurodata source 
  