diff --git a/bt5/erp5_web_renderjs_ui/PathTemplateItem/web_page_module/rjs_gadget_erp5_page_form_js.js b/bt5/erp5_web_renderjs_ui/PathTemplateItem/web_page_module/rjs_gadget_erp5_page_form_js.js
index d063da7e66af6d0e828f5d02e2a48627819cde33..ddd6e1c7bbc507e0afe15bb5bc800c3af4eb3543 100644
--- a/bt5/erp5_web_renderjs_ui/PathTemplateItem/web_page_module/rjs_gadget_erp5_page_form_js.js
+++ b/bt5/erp5_web_renderjs_ui/PathTemplateItem/web_page_module/rjs_gadget_erp5_page_form_js.js
@@ -274,6 +274,23 @@ and handling data send&receive.
 
           new_state.erp5_document = JSON.stringify(new_state.erp5_document);
           return gadget.changeState(new_state);
+        })
+        .push(undefined, function (error) {
+          if ((error instanceof jIO.util.jIOError) &&
+              (error.status_code === 404)) {
+            // If user is authenticated, hal style return 404 in case of unauthorized
+            // XXX use 403 instead?
+            // redirect user to the parent page with a message?
+            // XXX couscous
+            return gadget.notifySubmitted({
+              'message': error.message,
+              'status': 'error'
+            })
+              .push(function () {
+                return gadget.redirect({command: 'history_previous'});
+              });
+          }
+          throw error;
         });
     })
 
diff --git a/bt5/erp5_web_renderjs_ui/PathTemplateItem/web_page_module/rjs_gadget_erp5_page_form_js.xml b/bt5/erp5_web_renderjs_ui/PathTemplateItem/web_page_module/rjs_gadget_erp5_page_form_js.xml
index b818e102be5423faff031884a571da2d8d3ec853..5213dcd194fa33e616c8bc1dedb178a216767abf 100644
--- a/bt5/erp5_web_renderjs_ui/PathTemplateItem/web_page_module/rjs_gadget_erp5_page_form_js.xml
+++ b/bt5/erp5_web_renderjs_ui/PathTemplateItem/web_page_module/rjs_gadget_erp5_page_form_js.xml
@@ -234,7 +234,7 @@
                   </item>
                   <item>
                       <key> <string>serial</string> </key>
-                      <value> <string>999.25844.45625.48025</string> </value>
+                      <value> <string>996.45584.23925.17988</string> </value>
                   </item>
                   <item>
                       <key> <string>state</string> </key>
@@ -252,7 +252,7 @@
                           </tuple>
                           <state>
                             <tuple>
-                              <float>1649336938.64</float>
+                              <float>1638984141.13</float>
                               <string>UTC</string>
                             </tuple>
                           </state>