title: getting xml data always in extjs ajax responce with c# svc file
body: <p>I have a Extjs ajax request where i'm making request to svc (C#) - it always returns xml data .</p>
  
  <pre><code>proxy: {
      type: 'ajax'
      , url: '/Service/TestService.svc/getUserList'
      ,actionMethods: {
          read: 'POST'
      }
      ,reader: {
          type: 'json'
          ,root: 'records'
          ,totalProperty: 'count'
      }
      ,writer: {
          type: 'json'
      }
      ,extraParams: {
          mode: 'list'
      }
  }
  </code></pre>
  
  <p>How i can get response in json format. <img src="https://i.stack.imgur.com/mLxMy.png" alt="enter image description here"></p>