Hi Pedaars, I am not familiar with [node].actionName. What does that return, exactly?

For example, is it the value of the name attribute in the button:

<button name="buy" onclick="doStuff(this)">

or is it referring to the action that triggered the event, like "click"?

it is a custom property in a stencilJS button component

A custom property of an HTML node? Is it an attribute of the tag?

Regarding event.path there is a pattern to extend that to browsers which use the standardized method composedPath in the following reply. Maybe it will help?

https://stackoverflow.com/a/39245638

yes it is an attribute of the tag

Pedaars said

yes it is an attribute of the tag

So could you change from

event.srcElement.actionName

to

event.target.getAttribute('actionName')

(You only need srcElement if you are supporting IE8 and earlier)