title: Office API Javascript - Loading error telemetryproxy.html not found
body: <p>I tried to load Office.js to my application.</p>
  
  <p>I've added the <code>&lt;script src="https://appsforoffice.microsoft.com/lib/1/hosted/Office.js" type="text/javascript"&gt;&lt;/script&gt;</code></p>
  
  <p>and I get warning and error in console.</p>
  
  <pre><code>Warning: Office.js is loaded outside of Office client
  </code></pre>
  
  <p>and Error: <code>o15apptofilemappingtable.js:11 GET https://telemetryservice.firstpartyapps.oaspapps.com/telemetryservice/telemetryproxy.html 404 (Not Found)</code></p>
  
  <p>I created app.js contains: </p>
  
  <pre><code>Office.initialize = function (reason) {
  $(document).ready(function () {
      switch (reason) {
          case 'inserted': console.log('The add-in was just inserted.');
          case 'documentOpened': console.log('The add-in is already part of 
                the document.');
      }
    });
  };
  </code></pre>
  
  <p>Someone can help me please how can I fix it?</p>
  
  <p>Thanks!</p>