1738017 - Incorrect mouse event with elements stacked and preserve-3d

Status: NEW

(Core :: Web Painting, defect, P3)

Description

[demanghonj]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:93.0) Gecko/20100101 Firefox/93.0

Steps to reproduce:

I stacked element with position absolute, I set the css property transform-style: preserve-3d and I add click event listener on each element stacked.

Example: https://jsfiddle.net/v6qcemdh/

Actual results:

The click event is executed on hidden element

Expected results:

The click event should be executed on the visible element

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Core::Web Painting' component, and is moving the bug to that component. Please revert this change in case you think the bot is wrong.

Comment 2

[Miko Mynttinen]

Possibly same issue as bug 1715796.

Comment 3

[demanghonj]

I confirme that is the same issue as bug 1715796.

I implemented the workaround with display:none or mouse-pointer: none to jsfiddle: https://jsfiddle.net/aw0th7cx/1/

Comment 4

[Timothy Nikkel (:tnikkel)]

Based on regression testing it looks like bug 1208673 made us go from hitting the div 9 to hitting none of the divs. And then bug 1226904 made us go to hitting div 5.

Comment 5

[BugBot [:suhaib / :marco/ :calixte]]

Set release status flags based on info from the regressing bug 1208673

Comment 6

[BugBot [:suhaib / :marco/ :calixte]]

Set release status flags based on info from the regressing bug 1208673

Comment 7

[Pascal Chevrel:pascalc]

Timithy, we have two bugs for the same issue and both of them have a testcase (but bug 1715796 is still marked as UNCONFIRMED). Can we have only one duped over the other? Is that really a P2/S2? Thanks

Comment 8

[Timothy Nikkel (:tnikkel)]

This is probably S3. Regressed 7 years ago and we haven't got many reports. Bug 1715796 could be a different issue I'd have to look in more detail. To mark that bug confirmed I'd want to dissect the testcase and confirm that our behaviour is incorrect.