title: Website is returning "CSI/tbsd_" and "CSI/_tbnd" errors in browsers
body: <p>I have a website that is returning some odd warning messages and errors in both Firefox and Chrome. </p>
  
  <p>Firefox returns these errors:</p>
  
  <pre><code>GET http://fonts.googleapis.com/css?family=Varela+Round 200 OK 7c8e43d.js (line 18)
  13:27:41.46 CSI/tbsd_
  13:27:41.48 CSI/_tbnd
  </code></pre>
  
  <p>Chrome returns this error:</p>
  
  <pre><code>XMLHttpRequest cannot load http://fonts.googleapis.com/css?family=Varela+Round. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin is therefore not allowed access. 
  </code></pre>
  
  <p>I'm guessing that this problem is related to Google Fonts API and <code>Access-Control-Allow-Origin</code> How can I fix the errors for this?</p>