title: JavaScript error in Firefox only: Permission denied to access property "toJSON"
body: <p>In Google picker on the file selection, I am converting the token into JSON Like this:</p>
  
  <pre><code>access_token = JSON.stringify(token);
  </code></pre>
  
  <p>It is giving an error in Firefox</p>
  
  <blockquote>
    <p>Permission denied to access property "toJSON"</p>
  </blockquote>
  
  <p>The same code is working fine in Chrome and IE11.</p>