diff --git a/app/frontend/packs/locale.js.erb b/app/frontend/packs/locale.js.erb
new file mode 100644
index 000000000..4319f43c4
--- /dev/null
+++ b/app/frontend/packs/locale.js.erb
@@ -0,0 +1,10 @@
+import 'angular-i18n/angular-locale_<%= Rails.application.secrets.angular_locale %>.js';
+<% if Rails.application.secrets.moment_locale != 'en' %>
+import 'moment/locale/<%= Rails.application.secrets.moment_locale %>.js';
+<% end %>
+<% if Rails.application.secrets.summernote_locale != 'en-US' %>
+import 'summernote/lang/summernote-<%= Rails.application.secrets.summernote_locale %>.js';
+<% end %>
+<% if Rails.application.secrets.fullcalendar_locale != 'en' %>
+import 'fullcalendar/dist/lang/<%= Rails.application.secrets.fullcalendar_locale %>.js';
+<% end %>
diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 7f28ad931..60ef47237 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -95,18 +95,6 @@ module ApplicationHelper
     res
   end
 
-  ##
-  # check if the provided asset file is available
-  # @see https://github.com/rails/sprockets-rails/issues/298
-  #
-  def asset_available?(logical_path)
-    if Rails.configuration.assets.compile
-      Rails.application.precompiled_assets.include? logical_path
-    else
-      Rails.application.assets_manifest.assets[logical_path].present?
-    end
-  end
-
   private
 
   ## inspired by gems/actionview-4.2.5/lib/action_view/helpers/translation_helper.rb
diff --git a/app/views/application/index.html.erb b/app/views/application/index.html.erb
index 3b47fde1d..826fe672a 100644
--- a/app/views/application/index.html.erb
+++ b/app/views/application/index.html.erb
@@ -122,32 +122,6 @@
   </div>
 
 <%= javascript_packs_with_chunks_tag 'application' %>
-
-<!-- i18n of external libraries -->
-<script type="text/javascript" src="angular-i18n/angular-locale_#{Rails.application.secrets.angular_locale}.js"></script>
-<!-- if required locale does not exist, use the default "en" -->
-<% if asset_available?("moment/locale/#{Rails.application.secrets.moment_locale}.js") %>
-  <script type="text/javascript" src="moment/locale/#{Rails.application.secrets.moment_locale}.js"></script>
-<%
-  elsif Rails.application.secrets.moment_locale != 'en'
-    raise LoadError, "moment/locale/#{Rails.application.secrets.moment_locale}.js does not exists"
-  end
-%>
-<!-- if required locale does not exist, use the default "en-US" -->
-<% if asset_available?("summernote/lang/summernote-#{Rails.application.secrets.summernote_locale}.js") %>
-  <script type="text/javascript" src="summernote/lang/summernote-#{Rails.application.secrets.summernote_locale}.js"></script>
-<%
-  elsif Rails.application.secrets.summernote_locale != 'en-US'
-    raise LoadError, "summernote/lang/summernote-#{Rails.application.secrets.summernote_locale}.js does not exists"
-  end
-%>
-<!-- if required locale does not exist, use the default "en" -->
-<% if asset_available?("fullcalendar/dist/lang/#{Rails.application.secrets.fullcalendar_locale}.js") %>
-  <script type="text/javascript" src="fullcalendar/dist/lang/#{Rails.application.secrets.fullcalendar_locale}.js"></script>
-<%
-  elsif Rails.application.secrets.fullcalendar_locale != 'en'
-    raise LoadError, "fullcalendar/dist/lang/#{Rails.application.secrets.fullcalendar_locale}.js does not exists"
-  end
-%>
+<%= javascript_packs_with_chunks_tag 'locale' %>
 </body>
 </html>
diff --git a/babel.config.js b/babel.config.js
index 4df194934..0d4c8366a 100644
--- a/babel.config.js
+++ b/babel.config.js
@@ -1,9 +1,9 @@
-module.exports = function(api) {
-  var validEnv = ['development', 'test', 'production']
-  var currentEnv = api.env()
-  var isDevelopmentEnv = api.env('development')
-  var isProductionEnv = api.env('production')
-  var isTestEnv = api.env('test')
+module.exports = function (api) {
+  var validEnv = ['development', 'test', 'production'];
+  var currentEnv = api.env();
+  var isDevelopmentEnv = api.env('development');
+  var isProductionEnv = api.env('production');
+  var isTestEnv = api.env('test');
 
   if (!validEnv.includes(currentEnv)) {
     throw new Error(
@@ -12,7 +12,7 @@ module.exports = function(api) {
         '"test", and "production". Instead, received: ' +
         JSON.stringify(currentEnv) +
         '.'
-    )
+    );
   }
 
   return {
@@ -66,5 +66,5 @@ module.exports = function(api) {
         }
       ]
     ].filter(Boolean)
-  }
-}
+  };
+};