diff -r 86d603d4b265 -r 3143195e91b4 server/bo_client/config/environment.js
--- a/server/bo_client/config/environment.js	Thu Feb 16 18:22:19 2017 +0100
+++ b/server/bo_client/config/environment.js	Fri Feb 17 22:01:32 2017 +0100
@@ -1,14 +1,14 @@
 /* jshint node: true */
 
 module.exports = function(environment) {
-  var rootURL = '/';
-  var ENV = {
+  const rootURL = '/';
+  const ENV = {
     modulePrefix: 'bo-client',
     podModulePrefix: 'bo-client/pods',
     environment: environment,
     rootURL: rootURL,
     locationType: 'auto',
-    i18n : {
+    i18n: {
       defaultLocale: 'fr'
     },
     EmberENV: {
@@ -25,15 +25,16 @@
     APP: {
       // Here you can pass flags/options to your application instance
       // when it is created
-      'bo-doc-viaf-autocomplete' : {
-          viafQueryUrl: "http://viaf.org/viaf/AutoSuggest?query=",
-          viafBaseUrl: "http://viaf.org/viaf/",
+      'bo-doc-viaf-autocomplete': {
+        viafQueryUrl: 'http://viaf.org/viaf/AutoSuggest?query=',
+        viafBaseUrl: 'http://viaf.org/viaf/',
       },
-      'bo-doc-bnf-autocomplete' : {
-          bnfQueryUrl: rootURL + "proxy/bnf/?term=",
-          bnfBaseUrl: "http://data.bnf.fr/",
-          bnfSparqlUrl: rootURL + "proxy/bnf-sparql"
-      }
+      'bo-doc-bnf-autocomplete': {
+        bnfQueryUrl: rootURL + 'proxy/bnf/?term=',
+        bnfBaseUrl: 'http://data.bnf.fr/',
+        bnfSparqlUrl: rootURL + 'proxy/bnf-sparql'
+      },
+      backRootURL: '/'
     }
   };