title: what is <embed id="coba-object" type="application/coba" />
body: <p>I find</p>
  
  <p><code>&lt;embed id="coba-object" type="application/coba"</code> , </p>
  
  <p>what is application/coba ? and i try to debug it using firebug, but it seems firebug could not handle it. what is used to generate the html ?
  if you can provide a tool to debug it , it would be helpful, thanks !</p>