1965069 - Drag-and-drop reordering of skills on LinkedIn does not complete

Status: VERIFIED FIXED

(Web Compatibility :: Site Reports, defect, P2)

Description

[caohfi7dh]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:138.0) Gecko/20100101 Firefox/138.0

Steps to reproduce:

1. Open https://www.linkedin.com and log into your account
2. Go to your profile and click the pencil icon in the Skills section to edit
3. Click on the three dots and then Reorder
4. Try to drag a skill to reorder it

Actual results:

The drag starts but the skill item snaps back to its original position—drop is not completed.

Expected results:

Dragging a skill should allow reordering it by dropping it into a new position, as it works in Chrome.

Comment 1

[caohfi7dh]

Attachment: screencast.gif

Comment 2

[Timea Zsoldos [:tzsoldos], Desktop QA]

Thank you for the report. I was able to reproduce the issue on Win 11 ARM and Win 11 using Firefox build 140.0a1(20250508215032).
Marking issue as new for engineering input.

Comment 3

[Marco Bonardo [:mak]]

Moving to Web Compat for investigation

Comment 4

[Sean Feng [:sefeng211]]

mozregression led me to https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=962f032aff105cd8340964e5702ef2186d15ed46&tochange=3c952710a4cd42c0b793e191e7ee0909430fd846

So Bug 1918856 regressed this, I am moving this layout team's radar.

Comment 5

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

Set release status flags based on info from the regressing bug 1918856

Comment 6

[Emilio Cobos Álvarez [:emilio]]

Safari matches our behavior (https://commits.webkit.org/289431@main). Would be better to fix this in Chromium because our behavior follows the spec more closely.

A simple CSS intervention might be something like setting border-spacing: 0 0.1px or so on the relevant element, so that you get the two-value serialization...

Comment 7

[Emilio Cobos Álvarez [:emilio]]

Blink does already match our behavior for specified shorthands, making it extra-silly: https://chromium-review.googlesource.com/c/chromium/src/+/6563724

Comment 8

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

:mrobinson, since you are the author of the regressor, bug 1918856, could you take a look?

For more information, please visit BugBot documentation.

Comment 9

[Martin Robinson (email:[e-mail])]

It seems that if all major browsers do the same thing here, we probably shouldn't revert this?

Comment 10

[Emilio Cobos Álvarez [:emilio]]

Yeah to be clear chrome doesn't do the same, but only on the computed style. That's why I sent comment 7 their way.

Comment 11

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

Set release status flags based on info from the regressing bug 1918856

Comment 12

[Jeff Muizelaar [:jrmuizel]]

Can we add a WPT test for this?

Comment 13

[Emilio Cobos Álvarez [:emilio]]

There are multiple, see css/css-tables/parsing/border-spacing-computed.html etc. Or you mean something else?

Comment 14

[Jeff Muizelaar [:jrmuizel]]

https://wpt.fyi/results/css/css-tables/parsing/border-spacing-computed.html?label=experimental&label=master&aligned shows Chrome passing all the tests. Could there be a test for the behaviour that we want Chrome to have that they fail?

Comment 15

[Emilio Cobos Álvarez [:emilio]]

That's because https://chromium-review.googlesource.com/c/chromium/src/+/6563724 landed, which made it pass, am I missing something?

Comment 16

[Jeff Muizelaar [:jrmuizel]]

I think it is me that was confused. Is this correct?

• Chrome release currently has the behaviour that LinkedIn expects.
• Chrome changed their behaviour to match ours in https://chromium-review.googlesource.com/c/chromium/src/+/6563724
• Once that ships linkedin will break in Chrome too

Comment 17

[Emilio Cobos Álvarez [:emilio]]

Yes, the underlying bug LinkedIn is dependent on is fixed in chromium trunk but not release yet.

Comment 18

[Randell Jesup [:jesup] (needinfo me)]

Looks like they fixed it, perhaps forced by Chrome updating and shipping

Comment 19

[Raul Bucata]

Verified as FIXED using the RC Build

Tested with:

Browser / Version: Firefox 142.0-candidate build 1
Operating System: Windows 10 PRO x64, Mac OSX 10.15