title: Meteor.user() on iron-router server side
body: <p>How can check, on server side route, if user is logged?</p>
  
  <p>I would add check on 'before', but Metor.user() don't work here.</p>
  
  <p>thanks in advance.</p>
  
  <p>p.s. I have found <a href="https://stackoverflow.com/questions/16532316/how-to-get-meteor-user-to-return-on-the-server-side">How to get Meteor.user() to return on the server side?</a>, but not work on iron-router</p>