not sure how to handle the redirect response in the resource

backend

// Gets user avatar url
router.get('/:userId/avatar', function(req, res) {
  console.log("User", req.user.pictureUrl);
  if (req.user.pictureUrl) {
    console.log("redirecting avatar")
    res.redirect(req.user.pictureUrl)
  } else {
   console.log("redirecting default")
    res.redirect('/img/userProfileAvatar.png')
  }
})

home.html

<div class="span6" id="activities">
      <h3 class="span2">Activity</h3>
      {{activities[0].actor.avatar()}}

user.js

  User.prototype.avatar = function() {
   console.log(this);
   this.avatar = User.query({prefix: 'users/'+ this._id +'/avatar'}, function (avatar){
     console.log(this.avatar);
     return avatar;
   });
  }