title: Sourcemap support for firebase functions?
body: <p>I am trying to get sourcemaps to work, when developing firebase functions in typescript.</p>
  
  <p>In my <code>tsconfig.json</code> file a have source maps enabled.</p>
  
  <p>This generated the sourcemaps. I then include this line in my <code>index.ts</code> file: </p>
  
  <pre><code>import 'source-map-support/register';
  </code></pre>
  
  <p>And then it seems to work. Is this correct configured, and <code>source-map-support</code> to the projects <code>package.json</code> file?</p>