1342948 - Transform highlighter not always displayed when hovering degree value and it remains stuck when displayed

Status: NEW

Description

[Bogdan Maris [:bogdan_maris], Release Desktop QA]

Created attachment 8841591 [details]
Screencast showing the issue

[Affected versions]:
- Firefox 51.0.1
- Firefox 52 beta 9
- latest Aurora 53.0a2
- latest Nightly 54.0a1

[Affected platforms]:
- Mac OS X 10.11
- Windows 10 x64
- Ubuntu 16.04 x32

[Steps to reproduce]:
1. Visit demopage https://bug1312103.bmoattachments.org/attachment.cgi?id=8837541
2. Right click on the icosahedron (geometrical figure with 20 faces) and select inspect element
3. From the Rules panel, hover over 'transform' value.

[Expected result]:
- overlay that shows the original element without transformation is visible on the page no matter where the cursor position is on the transform value.

[Actual result]:
- overlay is not always shown if mouse cursor is positioned on (x deg) values.
- when the overlay is displayed, it's stuck on the page. (moving the cursor on other elements inside Inspector will make it go away)

[Regression range]:
- This is not a recent regression, it's a regression from 2016-05-09:

m-c:

Last good revision: fd8bdef8ef752875c509141b3345ab9e722d6cec
First bad revision: 748b70bcdbc95a4f3e72ca53a23c8f766049d011
Pushlog:
https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=fd8bdef8ef752875c5
09141b3345ab9e722d6cec&tochange=748b70bcdbc95a4f3e72ca53a23c8f766049d011


m-i:

Last good revision: 3740695ca00976b5ce2e21424adab26cf19954d8
First bad revision: 730147bfebe3d2c7d3fe1d0848189a8cb0cc8927
Pushlog:
https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=3740695ca00976b5ce2e21424adab26cf19954d8&tochange=730147bfebe3d2c7d3fe1d0848189a8cb0cc8927

[Additional notes]:
- Attached is a screencast showing the issue.

Comment 1

[Gerry Chang [:gchang]]

Too late for 51 and we've built 52 RC. Mark 51 won't fix.

Comment 2

[Xidorn Quan [:xidorn] UTC+10]

Sounds like an issue of devtools, but I have no idea why adding new color syntax could break that.

Comment 3

[Patrick Brosset <:pbro>]

Inspector bug triage (filter on CLIMBING SHOES).

Comment 4

[Julien Cristau [:jcristau] (back Nov 5)]

Mass wontfix for bugs affecting firefox 52.

Comment 5

[Liz Henry (:lizzard) (needinfo? me)]

Dropping this from regression triage since the dev tools team is aware of the issue and has set a priority.