diff --git a/api/js/egw_action/EgwActionObjectInterface.ts b/api/js/egw_action/EgwActionObjectInterface.ts
index db83621dcd..ef7433b40d 100644
--- a/api/js/egw_action/EgwActionObjectInterface.ts
+++ b/api/js/egw_action/EgwActionObjectInterface.ts
@@ -23,7 +23,7 @@ export interface EgwActionObjectInterface {
     //properties
     id?:string
     _state: number;
-	handlers : { [type : string]? : [{ type : string, listener : Function }] };
+	handlers : { [type : string] : [{ type : string, listener : Function }] };
     stateChangeCallback: Function;
     stateChangeContext: any;
     reconnectActionsCallback: Function;
diff --git a/api/js/egw_action/egw_action.ts b/api/js/egw_action/egw_action.ts
index e5b51b318a..edbde085d7 100755
--- a/api/js/egw_action/egw_action.ts
+++ b/api/js/egw_action/egw_action.ts
@@ -388,21 +388,26 @@ export class egwDragAction extends EgwDragAction {
     };
 })()
 
-let _dragActionImpl = null;
-
 export function getDragImplementation() {
-    if (!_dragActionImpl) {
-        _dragActionImpl = new EgwDragActionImplementation();
+	if(typeof window["_egwActionImpls"] != "object")
+	{
+		window["_egwActionImpls"] = {};
+	}
+	if(!window["_egwActionImpls"]._dragActionImpl)
+	{
+		window["_egwActionImpls"]._dragActionImpl = new EgwDragActionImplementation();
     }
-    return _dragActionImpl;
+	return window["_egwActionImpls"]._dragActionImpl;
 }
 
-
-let _dropActionImpl = null;
-
 export function getDropImplementation() {
-    if (!_dropActionImpl) {
-        _dropActionImpl = new egwDropActionImplementation();
+	if(typeof window["_egwActionImpls"] != "object")
+	{
+		window["_egwActionImpls"] = {};
+	}
+	if(!window["_egwActionImpls"]._dropActionImpl)
+	{
+		window["_egwActionImpls"]._dropActionImpl = new egwDropActionImplementation();
     }
-    return _dropActionImpl;
+	return window["_egwActionImpls"]._dropActionImpl;
 }
\ No newline at end of file