title: Unable to locate runnable browser in Docker container
body: <p>While trying to run <strong>ipython notebook</strong> command inside docker container, the following error happens:
   No web browser found: could not locate runnable browser.</p>
  
  <p>p.s. I'm using jupyter/all-spark-notebook:4.0 image</p>
  
  <pre><code>$ sudo docker run -it -p 8888:8888 jupyter/all-spark-notebook:4.0 ipython notebook
  
  Writing notebook server cookie secret to /.local/share/jupyter/runtime/notebook_cookie_secret
  Serving notebooks from local directory: /home/jovyan/work
  0 active kernels 
  The IPython Notebook is running at: http://localhost:8888/
  Use Control-C to stop this server and shut down all kernels (twice to   skip confirmation).
  No web browser found: could not locate runnable browser.
  </code></pre>