diff --git a/apps/common/main/lib/controller/ExternalDiagramEditor.js b/apps/common/main/lib/controller/ExternalDiagramEditor.js
index ad90550a1..518b24e76 100644
--- a/apps/common/main/lib/controller/ExternalDiagramEditor.js
+++ b/apps/common/main/lib/controller/ExternalDiagramEditor.js
@@ -141,7 +141,12 @@ define([
             handler: function(result, value) {
                 if (this.isHandlerCalled) return;
                 this.isHandlerCalled = true;
-                externalEditor && externalEditor.serviceCommand('queryClose',{mr:result});
+                if (this.diagramEditorView._isExternalDocReady)
+                    externalEditor && externalEditor.serviceCommand('queryClose',{mr:result});
+                else {
+                    this.diagramEditorView.hide();
+                    this.isHandlerCalled = false;
+                }
             },
 
             setChartData: function() {
diff --git a/apps/common/main/lib/view/ExternalDiagramEditor.js b/apps/common/main/lib/view/ExternalDiagramEditor.js
index 511fe6585..29f6e8021 100644
--- a/apps/common/main/lib/view/ExternalDiagramEditor.js
+++ b/apps/common/main/lib/view/ExternalDiagramEditor.js
@@ -82,11 +82,9 @@ define([
                 disabled: true
             });
             this.btnCancel = new Common.UI.Button({
-                el: $('#id-btn-diagram-editor-cancel'),
-                disabled: true
+                el: $('#id-btn-diagram-editor-cancel')
             });
 
-            this.$window.find('.tool.close').addClass('disabled');
             this.$window.find('.dlg-btn').on('click', _.bind(this.onDlgBtnClick, this));
         },