title: Docker open a url in the host browser
body: <p>I have installed xdg-utils in my docker container using apt-get install xdg-utils</p>
  
  <p>I want the command <code>xdg-open 'http://www.freedesktop.org/'</code> to open the specified url into the host browser.</p>
  
  <p>right now it throws this error :</p>
  
  <pre><code>root@pravin:/# xdg-open 'http://www.freedesktop.org/'
  /usr/bin/xdg-open: 778: /usr/bin/xdg-open: www-browser: not found
  /usr/bin/xdg-open: 778: /usr/bin/xdg-open: links2: not found
  /usr/bin/xdg-open: 778: /usr/bin/xdg-open: elinks: not found
  /usr/bin/xdg-open: 778: /usr/bin/xdg-open: links: not found
  /usr/bin/xdg-open: 778: /usr/bin/xdg-open: lynx: not found
  /usr/bin/xdg-open: 778: /usr/bin/xdg-open: w3m: not found
  xdg-open: no method available for opening 'http://www.freedesktop.org/'
  </code></pre>
  
  <p>How do I get docker to use the browser of the host os?</p>