title: Not able to set up <customErrors mode="off"> for a mvc3 .net web app
body: <p>I need set CustomErrors on OFF in my web.config in IIS 7.5 for my MVC 3 web app.</p>
  
  <p>Using this code the CustomError are still in default mode.</p>
  
  <p>Could you tell me what I'm ding wrong here? Thansk</p>
  
  <pre><code> &lt;system.web&gt;
      &lt;customErrors mode="off"&gt;
  &lt;/customErrors&gt;
  ...
  </code></pre>
  
  <p>EDIT Solution (case sensitive problem)</p>
  
  <pre><code> &lt;system.web&gt;
      &lt;customErrors mode="Off"&gt;
  &lt;/customErrors&gt;
  ...
  </code></pre>