1832528 - background-image set via variable to an svg data uri flickers if set to a mask image too.

Status: VERIFIED FIXED

(Core :: Graphics: ImageLib, defect)

Description

[Emilio Cobos Álvarez (:emilio)]

(As reported by rossi in bug 1581268 comment #7)

I have this exact bug in v113.0 (macos), you can see it for example on this website: https://docusaurus-openapi.tryingpan.dev/petstore/add-pet
when you click through the menu items or just switch between "default" and "example" in the code sample on the right hand side - the arrows in the sidebar menu are flickering. as soon as you replace the css var with the actual svg url() from the var, it stops flickering.

I can repro that.

Comment 1

[Emilio Cobos Álvarez (:emilio)]

Attachment: test-case

Okay so the key to reproduce the bug here is that you need to use the same image as a mask and as a background.

This is because masks load with different cors modes so we miss the cache for one, then insert that and miss the cache for the other, ad infinitum.

Comment 2

[Emilio Cobos Álvarez (:emilio)]

Attachment: Bug 1832528 - Make cors mode part of the image cache key. r=tnikkel

So that we can hold entries loaded with different CORS modes, such as
masks and backgrounds.

Comment 3

[Emilio Cobos Álvarez (:emilio)]

Attachment: Bug 1832528 - Add a test. r=tnikkel

Comment 4

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/2a4a5c3dd88c
Make cors mode part of the image cache key. r=tnikkel

Comment 5

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/acf9b0ad85cc
Add a test. r=tnikkel

Comment 6

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Created web-platform-tests PR https://github.com/web-platform-tests/wpt/pull/40238 for changes under testing/web-platform/tests

Comment 7

[Cristian Tuns]

https://hg.mozilla.org/mozilla-central/rev/2a4a5c3dd88c
https://hg.mozilla.org/mozilla-central/rev/acf9b0ad85cc

Comment 8

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Upstream PR merged by moz-wptsync-bot

Comment 9

[Ardelean Oana, Desktop Test Engineering [:oardelean]]

Reproducible on a 2023-05-23 Nightly build on Windows 10.
Verified as fixed on Firefox 115.0b5(build ID: 20230613195413) and Nightly 116.0a1(build ID: 20230615094111) on Windows 10, macOS 12, Ubuntu 22.