Steps:

• Open the ChoosePage helper, for example when changing a page to a redirection to another page
• select a page in the list
• select another language in the language combobox

the following error occures :
2015-12-14T16:52:02.205+01:00 ERROR [Ametys.data.ServerComm] Une erreur est survenue dans le traitement de la réponse serveur (TypeError: node is undefined)
._checkUserRight@http://localhost:8080/cms/plugins/web/resources/js/Ametys/web/helper/ChoosePage.js:296:32