1443148 - Disabled HTMLElement does not fire events dispatched through JS (dispatchEvent)

Status: RESOLVED DUPLICATE of bug 329509

(Core :: DOM: Events, defect, P3)

Description

[Oscar Johansson]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.186 Safari/537.36

Steps to reproduce:

1. Create any element that support the [disabled]-attribute (input, button, textarea etc.).
2. Setup a event listener for a CustomEvent on the element.
3. Trigger the event on the HTMLElement

See  my explanation and code example here:
https://stackoverflow.com/questions/49065256/trigger-event-on-disabled-htmlelement


Actual results:

The event handler did not get called even though I expected it should.


Expected results:

The expected result should be that the event handler should fire. 
According to the w3 spec nothing is mentioned on any other events that mouse events should not be dispatched:

https://www.w3.org/TR/2011/WD-html5-20110525/association-of-controls-and-forms.html#attr-fe-disabled

"A form control that is disabled must prevent any click events that are queued on the user interaction task source from being dispatched on the element."

Comment 1

[Anne (:annevk)]

This is easy to reproduce: https://software.hixie.ch/utilities/js/live-dom-viewer/?saved=5844.

Given that this works in Chrome and Safari and the standard doesn't mention this at all, I'm inclined to agree with OP that we should fix this.