diff --git a/app/assets/javascripts/rename.js b/app/assets/javascripts/rename.js
index 02e6eb0d..20570498 100644
--- a/app/assets/javascripts/rename.js
+++ b/app/assets/javascripts/rename.js
@@ -145,7 +145,6 @@ $(document).on('turbolinks:load', function(){
 
     // Elements that can be renamed
     var room_title = $('#room-title');
-    var room_blocks = $('#room_block_container').find('a');
     var recording_rows = $('#recording-table').find('tr');
 
     // Configure renaming for room header
diff --git a/app/assets/javascripts/room.js b/app/assets/javascripts/room.js
index ab02eabe..c4361069 100644
--- a/app/assets/javascripts/room.js
+++ b/app/assets/javascripts/room.js
@@ -62,13 +62,13 @@ $(document).on('turbolinks:load', function(){
     //show all elements & their children with a create-only class
     $(".create-only").each(function() {
       $(this).show()
-      if($(this).children().length > 0) $(this).children().show()
+      if($(this).children().length > 0) { $(this).children().show() }
     })
 
     //hide all elements & their children with a update-only class
     $(".update-only").each(function() {
       $(this).attr('style',"display:none !important")
-      if($(this).children().length > 0) $(this).children().attr('style',"display:none !important")
+      if($(this).children().length > 0) { $(this).children().attr('style',"display:none !important") }
     })
   })
 
@@ -81,13 +81,13 @@ $(document).on('turbolinks:load', function(){
     //show all elements & their children with a update-only class
     $(".update-only").each(function() {
       $(this).show()
-      if($(this).children().length > 0) $(this).children().show()
+      if($(this).children().length > 0) { $(this).children().show() }
     })
 
     //hide all elements & their children with a create-only class
     $(".create-only").each(function() {
       $(this).attr('style',"display:none !important")
-      if($(this).children().length > 0) $(this).children().attr('style',"display:none !important")
+      if($(this).children().length > 0) { $(this).children().attr('style',"display:none !important") }
     })
 
     updateCurrentSettings($(this).closest("#room-block").data("room-settings"))
@@ -105,7 +105,7 @@ $(document).on('turbolinks:load', function(){
     //set dropdown value
     if (settings.joinViaHtml5) {
       updateDropdown($(".dropdown-item[value='html5']"))
-    } else if (settings.joinViaHtml5 == false) {
+    } else if (settings.joinViaHtml5 === false) {
       updateDropdown($(".dropdown-item[value='flash']"))
     } else { //default option
       updateDropdown($(".dropdown-item[value='default']"))
diff --git a/app/assets/javascripts/sort.js b/app/assets/javascripts/sort.js
index 35ed9d1d..09452868 100644
--- a/app/assets/javascripts/sort.js
+++ b/app/assets/javascripts/sort.js
@@ -92,6 +92,8 @@ $(document).on('turbolinks:load', function(){
         }
         else if(order === "desc"){
           return b_val.localeCompare(a_val);
+        } else {
+          return undefined;
         }
 
 
diff --git a/app/controllers/account_activations_controller.rb b/app/controllers/account_activations_controller.rb
index 9e7eee79..549253d9 100644
--- a/app/controllers/account_activations_controller.rb
+++ b/app/controllers/account_activations_controller.rb
@@ -17,6 +17,8 @@
 # with BigBlueButton; if not, see <http://www.gnu.org/licenses/>.
 
 class AccountActivationsController < ApplicationController
+  include Verifier
+
   before_action :ensure_unauthenticated
   before_action :find_user
 
@@ -44,7 +46,7 @@ class AccountActivationsController < ApplicationController
       flash[:alert] = I18n.t("verify.already_verified")
     else
       begin
-        @user.send_activation_email(verification_link)
+        @user.send_activation_email(user_verification_link)
       rescue => e
         logger.error "Error in email delivery: #{e}"
         flash[:alert] = I18n.t(params[:message], default: I18n.t("delivery_error"))
@@ -58,10 +60,6 @@ class AccountActivationsController < ApplicationController
 
   private
 
-  def verification_link
-    request.base_url + edit_account_activation_path(token: @user.activation_token, email: @user.email)
-  end
-
   def ensure_unauthenticated
     redirect_to current_user.main_room if current_user
   end
diff --git a/app/controllers/concerns/verifier.rb b/app/controllers/concerns/verifier.rb
new file mode 100644
index 00000000..b6bc852b
--- /dev/null
+++ b/app/controllers/concerns/verifier.rb
@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+# BigBlueButton open source conferencing system - http://www.bigbluebutton.org/.
+#
+# Copyright (c) 2018 BigBlueButton Inc. and by respective authors (see below).
+#
+# This program is free software; you can redistribute it and/or modify it under the
+# terms of the GNU Lesser General Public License as published by the Free Software
+# Foundation; either version 3.0 of the License, or (at your option) any later
+# version.
+#
+# BigBlueButton is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License along
+# with BigBlueButton; if not, see <http://www.gnu.org/licenses/>.
+
+module Verifier
+  extend ActiveSupport::Concern
+
+  # Returns the link the user needs to click to verify their account
+  def user_verification_link
+    request.base_url + edit_account_activation_path(token: @user.activation_token, email: @user.email)
+  end
+end
diff --git a/app/controllers/users_controller.rb b/app/controllers/users_controller.rb
index aea7b4ba..dc638764 100644
--- a/app/controllers/users_controller.rb
+++ b/app/controllers/users_controller.rb
@@ -18,6 +18,7 @@
 
 class UsersController < ApplicationController
   include RecordingsHelper
+  include Verifier
 
   before_action :find_user, only: [:edit, :update, :destroy]
   before_action :ensure_unauthenticated, only: [:new, :create]
@@ -141,10 +142,6 @@ class UsersController < ApplicationController
     @user = User.find_by!(uid: params[:user_uid])
   end
 
-  def verification_link
-    request.base_url + edit_account_activation_path(token: @user.activation_token, email: @user.email)
-  end
-
   def ensure_unauthenticated
     redirect_to current_user.main_room if current_user
   end