Cannot read property 'confirm' of undefined

Flow
1

I get this error in client-side when I load the page. I use Vaadin 14.1.16.
(TypeError) : Cannot read property ‘confirm’ of undefined.
Also, the textArea does not appear on the page.
The comment label is on the right side while I expected to be under the select component.
Has it to do with browsers? or is some bug? is there any workaround or definitive solution for it?

18080837.png
18080840.java (4.57 KB)

2

the same error was reported a year ago, no answer yet
[same error]
(https://vaadin.com/forum/thread/17534478/typeerror-cannot-read-property-confirm-of-undefined)

PD: Restarting Payara solved it, must be some cached issue. Maven and/or Netbeans are not cleaning well before a redeploy