[Webkit-unassigned] [Bug 81853] DOM 3 Event, mousedown and mouseup default actions

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=81853

Ahmad Saleem <zlip.792 at gmail.com> changed:

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                 CC|                            |zlip.792 at gmail.com

--- Comment #6 from Ahmad Saleem <zlip.792 at gmail.com> ---
Based on test case from Comment 05, when I use trackpad to scroll up and down in Safari 15.6 on macOS 12.6 console, I don't get any warning or error (within Console) but in case of Chrome Canary 105, I get following message on both event (mousedown and mouseup):

[Intervention] Unable to preventDefault inside passive event listener due to target being treated as passive. See <URL>

Similarly, in Firefox Nightly 104, I get this message in Console:

Ignoring ‘preventDefault()’ call on event of type ‘wheel’ from a listener registered as ‘passive’.

I am not sure whether WPT UI Event have coverage for these events: https://wpt.fyi/results/uievents?label=master&label=experimental&aligned&q=uievent

Although - Draft do mention that the work is on-going for WPT (in Tests section): https://w3c.github.io/uievents/

Just wanted to share - what I learnt so far about. Thanks!

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