title: How to omit sourcemaps in Angular-CLI 6+
body: <p>I want to build with <code>ng build</code> without sourcemaps. In previous versions, I could use the <code>--no-sourcemap</code> or <code>--sourcemap=false</code> parameter, but now I get:  </p>
  
  <blockquote>
    <p><code>Unknown option: '--sourcemap'</code></p>
  </blockquote>
  
  <p>How can I omit source maps in Angular-CLI 6+?</p>