update security handling for user namespace

app/assets/javascripts/user/quser.js.coffee

@@ -13,7 +13,9 @@ window.Quser=
     $.getJSON(data_host + '/user/list_info.json?' + authentication_string, (res) -> Quser.handle_active_list_default_actions(res))
   handle_active_list: (callback) ->
     $.getJSON(data_host + '/user/list_info.json?' + authentication_string, (res) ->
-      if !res.list_active
+      if(res.ok == false && res.status && res.status == 401)
+        direct_to_site('obtain_user_token') 
+      else if !res.list_active
         redirect_to 'user_root', {list_closed: 'true'}
         return
       window.active_list = res
@@ -22,6 +24,9 @@ window.Quser=
     )
   handle_active_list_default_actions: (response)->
     response ||= {}
+    if(response.ok == false && response.status && response.status == 401)
+      direct_to_site('obtain_user_token') 
+      return
     if response.table_number
       $('.table-number').text(response.table_number)
     if response.supplier_name