title: Google Apps Script remove warning banner
body: <p>I am putting a GeoChart on my Google Site using a Google Apps Script. Viewing the page when I am not logged into my google account shows a grey banner at the top with states: "This application was created by another user, not by Google." See it <a href="https://sites.google.com/site/christinegbraun/data" rel="noreferrer">here</a>. </p>
  
  <p><a href="https://i.stack.imgur.com/Ibju6.png" rel="noreferrer"><img src="https://i.stack.imgur.com/Ibju6.png" alt="screenshot"></a></p>
  
  <p>Is there a way to remove this banner or move it to the bottom of the page so it looks better? I found a short discussion <a href="https://code.google.com/p/google-apps-script-issues/issues/detail?id=522" rel="noreferrer">here</a> (see fourth comment), but this did not work with the HtmlOutput object I am using in the <code>doGet</code> </p>
  
  <pre><code>function doGet() {
  return HtmlService.createHtmlOutputFromFile('prate').setSandboxMode(HtmlService.SandboxMode.IFRAME);
  }
  </code></pre>