'elementor - execute javascript after custom form submit action

I added a custom "after form submit" action for elementor but if I recho some result I get console errors when using "submit_success" event listener:

Uncaught ReferenceError: originalEvent is not defined (common.min.js)
Uncaught TypeError: e.data is undefined (preloaded-elements-handlers.min)

I don't know what to return to avoid them and get my code executed. Maybe I use a wrong approach?



Solution 1:[1]

Found the solution myself: I need to use the $ajax_handler method like $ajax_handler->data['hello world'] inside the run() function.

Sources

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Source: Stack Overflow

Solution Source
Solution 1 Insomnia88