title: Get MimeType of Image by Javascript in Chrome
body: <p>For some image elements in a web page, the file extension is not provided. Here is an example.</p>
  
  <pre><code>http://c.fsdn.com/allura/p/pdfsam/icon
  </code></pre>
  
  <p>How can I get the image's mimetype by javascript if the file extension is not provided? If possible I am looking for a solution that does not require to get the mimetype detail from Ajax or Network connection. I am looking something like a DOM property:</p>
  
  <pre><code>img.mimeType
  </code></pre>
  
  <p>I am try to get the detail for Google Chrome.</p>