title: allow specific extension in forms authentication
body: <p>I am using forms authentication with </p>
  
  <p>
        
      </p>
  
  <pre><code>&lt;authorization&gt;
    &lt;deny users="?" /&gt;
  &lt;/authorization&gt;
  </code></pre>
  
  <p>However, I want to allow all calls made for specific extension say *.abc.</p>
  
  <p>I tried:</p>
  
  <pre><code>&lt;location path=".abc"&gt;
  &lt;system.web&gt;
    &lt;authorization&gt;
      &lt;allow users="*"/&gt;
    &lt;/authorization&gt;
  &lt;/system.web&gt;
  </code></pre>
  
  <p></p>
  
  <p>but wildcards are not allowed.</p>
  
  <p>How can I allow *.abc calls to work for all users?
  Is there any web.config element I can use OR anything I can do in AuthenticateRequest httpmodule?</p>