wekan/client/components/users/router.js

Router.route('/profile/:username', {
  name: 'Profile',
  template: 'profile',
  waitOn: function() {
    return Meteor.subscribe('profile', this.params.username);
  },
  data: function() {
    var params = this.params;
    return {
      profile: function() {
        return Users.findOne({ username: params.username });
      }
    };
  }
});