title: How to set url and callback url field for twitter app development?
body: <p>I am trying to create a twitter application and got stuck on url and callback url field.</p>
  
  <p>I am using it for personal project and hence I set url fields as <code>http://127.0.0.1/</code> but I get <code>Invalid website url</code> message.</p>
  
  <p>What url should I enter?</p>