Hi
In my application I met this interesting problem. Everything works correctly, button navigation is fine etc. But If I use https://vaadin.com/directory#addon/dock or https://vaadin.com/directory#addon/dmenu-widget after first button click addon is shown, but after second click I`m getting 4 js errors(see attachment, bug only with dmenu, tomorrow I can attach dock bug ). But it looks like gwt/vaadin error. Could anyone help me with that, or at least show me what I should looking for?
There is no additional bugs in server logs 
BRs
Paweł
13234.txt (113 KB)