title: How to enable sourcemaps with grunt, browserify, and babelify
body: <p>I'd like to generate sourcemaps for jsx files that are transpiled with babelify and browserify. It seems that some sourcemaps are being generated as a base64 encoded comment at the bottom of my output file, but stacktraces do not honor them.</p>
  
  <p>My grunt task looks like the following:</p>
  
  <pre><code>browserify: {
    options: {
      browserifyOptions: {
        debug: true
      },
      debug: true,
      transform: ['babelify']
    },
    app: {
      src: 'src/app.jsx',
      dest: 'dist/app.js'
    }
  },
  </code></pre>