HTTP codes in wipe_data API call

public/js/vroom.js

@@ -1173,15 +1173,18 @@ function initVroom(room) {
         },
         async: false,
         error: function(data){
-          $.notify(locale.ERROR_OCCURRED, 'error');
+          data = data.responseJSON;
+          if (data.msg){
+            $.notify(data.msg, 'error');
+          }
+          else{
+            $.notify(locale.ERROR_OCCURRED, 'error');*
+          }
         },
         success: function(data){
-          if (data.status && data.status === 'success' && $('#etherpadContainer').html() != ''){
+          if ($('#etherpadContainer').html() != ''){
             loadEtherpadIframe();
           }
-          else if (data.status !== 'success' && data.msg){
-            $.notify(data.msg, 'error');
-          }
         }
       });
     }

vroom.pl

@@ -1784,8 +1784,10 @@ any '/api' => sub {
     return $self->render(
       json => {
         msg    => $self->l('ERROR_OCCURRED'),
+        err    => 'ERROR_OCCURRED',
         status => 'error'
-      }
+      },
+      status => 503
     );
   }
   # Get a new etherpad session