diff --git a/apps/api/documents/api.js b/apps/api/documents/api.js
index 054872c42..ee433be10 100644
--- a/apps/api/documents/api.js
+++ b/apps/api/documents/api.js
@@ -303,6 +303,8 @@
             if ( msg ) {
                 if ( msg.type === "onExternalPluginMessage" ) {
                     _sendCommand(msg);
+                } else if (msg.type === "onExternalPluginMessageCallback") {
+                    postMessage(window.parent, msg);
                 } else
                 if ( msg.frameEditorId == placeholderId ) {
                     var events = _config.events || {},