title: OpenSans Semibold Normal displayed as Italic
body: <p>I have problem with Open Sans font imported from Google Web Fonts.
  OpenSans Semibold (600) normal is suddenly on all my webpages rendered in italic.
  I tried force font-style to normal etc. but with same results. After changing font weight to 500 or 800 it's back to normal style.</p>
  
  <pre><code>@font-face {
      font-family: 'Open Sans';
      font-style: normal;
      font-weight: 600;
      src: local('Open Sans Semibold'), local('OpenSans-Semibold'), url(http://fonts.gstatic.com/s/opensans/v13/MTP_ySUJH_bn48VBG8sNSuY5mlVXtdNkpsMpKkrDXP4.woff) format('woff');
  }
  </code></pre>
  
  <p><a href="http://jsfiddle.net/q6gszkvt/2/" rel="nofollow noreferrer">JSFiddle</a></p>
  
  <p>Even Google Fonts shows it in italic.
  <a href="https://i.stack.imgur.com/a8z0e.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/a8z0e.png" alt="enter image description here"></a></p>