How to reproduce :

• surcharge an i18n key in WEB-INF/i18n/plugins/multimedia/message_fr.xml like this :

  <?xml version="1.0" encoding="UTF-8"?>
  <!--
     Copyright 2010 Anyware Services
  
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
     You may obtain a copy of the License at
  
         http://www.apache.org/licenses/LICENSE-2.0
  
     Unless required by applicable law or agreed to in writing, software
     distributed under the License is distributed on an "AS IS" BASIS,
     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     See the License for the specific language governing permissions and
     limitations under the License.
     -->
  <catalogue xml:lang="fr">
  	<message key="CONTENT_PHOTOS_GALLERY_DESCRIPTION">Galerie de photos : cliquez sur l'icône pour activer l'onglet "Contenu" afin d'accéder à "Modifier le contenu".</message>
  </catalogue>

• Then restart and try to acces to the cms
  > a JS error occured : SyntaxError: missing } after property list
  http://localhost:8113/cms/locations/index.html
  Line 541
  This line begins by : org.ametys.ribbon.RibbonManager.getInstance().getControls()["org.ametys.web.addcontent"] = new org.ametys.web.content.ZoneMenu