title: Passing data between different views failure
body: <p>I get the <code>userID</code> on Router and pass to View.</p>
  
  <p>Router data transfer code:</p>
  
  <pre><code>AdminPanelView.usr = m_login.toJSON().userID;
  console.log(AdminPanelView.usr); //print user id
  </code></pre>
  
  <p>AdminPanelView.js</p>
  
  <pre><code>var usr = new UserModel();
  var addAdminPanelView = Backbone.View.extend({
      save: function(usr) {
          console.log({ usr: usr.toJSON() }); // print the screenshot's value on line 52
      }
  });
  
  return {
      addAdminPanelView: addAdminPanelView,
      usr: usr
  }
  </code></pre>
  
  <p>How do I fix this?</p>
  
  <p><a href="https://i.stack.imgur.com/Oh3CE.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Oh3CE.png" alt="Screenshot"></a></p>