title: asset-path Rails 4 - Will not compile to /assets
body: <p>I am working with a font file, of which looks like this:</p>
  
  <pre><code>@font-face {
    font-family: 'FontAwesome';
    src: url(asset-path('fontawesome-webfont.eot', font));
    src: url(asset-path('fontawesome-webfont.eot', font)) format('embedded-opentype'),
      url(asset-path('fontawesome-webfont.woff', font)) format('woff'),
      url(asset-path('fontawesome-webfont.ttf', font)) format('truetype'),
      url(asset-path('fontawesome-webfont.svg', font)) format('svg');
  //  src: url('#{$FontAwesomePath}/FontAwesome.otf') format('opentype'); // used when developing fonts
    font-weight: normal;
    font-style: normal;
  }
  </code></pre>
  
  <p>I was under the impression that this syntax:  <code>url(asset-url('...'), font));</code> from a SCSS file should render /assets/font.oet, for instance, in the CSS file that is gets compressed to. </p>
  
  <p>That is not what is happening.  It doesn't change at all.  I still see <code>url(asset-url('...'), font));</code> in the CSS file.</p>
  
  <p>My Setup:</p>
  
  <p>I have all my SCSS files housed under app/assets/stylesheets.  I pull all the SCSS files into Application.css.scss via @import tags. (Could this be a reason why asset-path will not parse?).</p>
  
  <p>*<em>I need something that will render the asset pipeline MD5 fingerprint when I run <code>RAILS_ENV=production bundle exec rake assets:precompile</code>, so if asset-url will NOT render the fingerprint, can you please point me to a helper that will *</em></p>
  
  <p>Appreciate the help.</p>