title: Bing Maps V8 -Uncaught ReferenceError: Microsoft is not defined
body: <p>I am using bing map in my application for searching.
  Bing map V8 control.</p>
  
  <p>I have used this CDN </p>
  
  <pre><code>&lt;script type='text/javascript' src='http://www.bing.com/api/maps/mapcontrol?callback=GetMap&amp;key=api_key' async defer&gt;&lt;/script&gt;
  </code></pre>
  
  <p>after that when I am trying to use Microsoft.Maps. It is saying:</p>
  
  <pre><code>Uncaught ReferenceError: Microsoft is not defined
  
  new Microsoft.Maps.Color(100,100,0,100); 
  </code></pre>
  
  <p>Any one have idea about this?</p>