title: Performance impact of using css / javascript source-maps in production?
body: <ul>
  <li>Should source-maps be used in production environment? Do they provide any benefits other than debugging?</li>
  <li>Do they impact app load time due to the additional server round-trips? Are browsers smart enough to load <code>.map</code> assets after app is loaded and rendered?</li>
  <li>If a browser cannot find the <code>.map</code> asset (<code>404</code> error), would there be performance impact? Should I care about fixing it?</li>
  </ul>
  
  <p>Note that fixing the last one may not be as easy as serving the <code>.map</code> assets if there are complicated concat / minify build steps.</p>