title: OpenSansSemiBold seems unavailable on localhost
body: <p>I've recently been overhauling my frontend code to use Stylus instead of CSS. Mostly it's gone okay but now wherever I use the font <code>OpenSansSemiBold</code> it just looks like the browser's default font. Even when I manually add the <code>font-family: 'OpenSansSemiBold'</code> attribute in Chrome developer tools it doesn't change to the correct font, whereas doing that works on my currently-deployed live version of the site. Any idea what might be preventing this font from being found?</p>
  
  <p>EDIT: I'm using nginx on local (same as on live). Google's fonts are imported just above where the preprocessed CSS is imported like so:</p>
  
  <pre><code>&lt;link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,600,800' rel='stylesheet' type='text/css'&gt;
  </code></pre>