[Webkit-unassigned] [Bug 282530] New: Masks not working depending on unknown condition
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Mon Nov 4 02:42:16 PST 2024
https://bugs.webkit.org/show_bug.cgi?id=282530
Bug ID: 282530
Summary: Masks not working depending on unknown condition
Product: WebKit
Version: Other
Hardware: PC
OS: Linux
Status: NEW
Severity: Minor
Priority: P2
Component: CSS
Assignee: webkit-unassigned at lists.webkit.org
Reporter: tuurmartens4 at gmail.com
CC: koivisto at iki.fi
Created attachment 473123
--> https://bugs.webkit.org/attachment.cgi?id=473123&action=review
minimal reproduction file
Sorry for the bad title.
I've been trying to find out exactly what is going on, but it hasn't been easy.
Anyhow, I'm not sure of exactly what triggers this bug, which I realize isn't very helpful. I'll post this here so perhaps more eyes could look into it, as will I, as much as is possible.
Scenario sketch:
I want a gradient "blob". I tried to use a blurred out SVG for that, but that caused rendering issues in every single browser I tried.
So we opted to use a solid color div with a mask applied to it.
I got the mask small enough to fit in 1.5KiB, so it's part of the html file because I can only seem to attach one attachment.
For some reason this mask works only sometimes, and the only browsers where I encounter issues are webkit-based.
In the attached file it seems to work on some window widths, but not others, so try messing with the window size.
Once again my apologies for making such a vague report, but my intention is to bring more eyes upon the issue.
What actually happens:
The result SOMETIMES is a solid color, as if the mask was never applied. Other times, it behaves as expected. Possibly related to image size.
What is supposed to happen:
The mask is visually applied.
Reproduced in:
WebKitGTK 2.46.1
GStreamer 1.24.7
GTK 4.17.0
Libadwaita 1.7.0
Distributor: GNOME
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