title: npm add root CA
body: <p>I am looking for a way to add a custom CA to NPM so I can download from a location using said certificate (an internal git-server) without having to nuke all CA-checking with</p>
  
  <pre><code>npm config set strict-ssl false
  </code></pre>
  
  <p>Is there any way of achieving this or not? (if not: is there already a defect?)</p>