Cannot read property 'stopPropagation' of undefined when confirming record deletion

[panfiva]

I am using react admin 3.0.0-beta.3 with dataProvider = jsonServerProvider('http://jsonplaceholder.typicode.com'); 3.0.0-beta.3

I have a sample edit form for posts per react-admin tutorial (https://github.com/marmelab/react-admin/blob/next/docs/Tutorial.md) and added "undoable={false}" to edit form. This setting triggers confirmation prompt. When I click "confirm", I get an error "Cannot read property 'stopPropagation' of undefined". I also notice that the browser is javascript files.

Attached screenprint shows files reloaded after I clicked confirm and the error message.

Source Code is attached.

react-admin-app-3x.zip

[vnnw]

Same here.

[djhi]

Thanks for the report!

[fzaninotto]

fixed by #3889