- Reverted change that removed response.callbacks

program/js/app.js

@@ -4931,6 +4931,11 @@ function rcube_webmail()
       eval(response.exec);
     }
 
+    // execute callback functions of plugins
+    if (response.callbacks && response.callbacks.length) {
+      for (var i=0; i < response.callbacks.length; i++)
+        this.triggerEvent(response.callbacks[i][0], response.callbacks[i][1]);
+
     // process the response data according to the sent action
     switch (response.action) {
       case 'delete':