Jquery-ujs not working

Hi guys,
i already opened an issue on github, but justin meant this place is more appropriate for this topic, so here i am :wink: You can find the issue here.

The problem is, it seems i can not get jquery-ujs to work properly. In a freshly installed react-webpack-rails-tutorial-App the following code does not open a confirmation dialog:
<a data-confirm="Confirm me" method="delete" href="/myLink">Delete</a>

As described on github, nothing happens when the link is clicked. The browser does not follow the link and no errors or warnings are displayed. It seemjquery-ujs intercepts the click, but does not open the dialog.

Any help is appreciated.

Thanks a lot.