Bug 309949

Summary: SVG favicons don't respect media query overrides, notably for dark mode
Product: WebKit Reporter: Pawel Grzybek <mail>
Component: SVGAssignee: Nobody <webkit-unassigned>
Status: NEW    
Severity: Normal CC: ahudson, annevk, dev, karlcow, nileshprajapati, owlsy, sabouhallawa, tomac, zimmermann
Priority: P2 Keywords: InRadar
Version: Safari 26   
Hardware: Mac (Apple Silicon)   
OS: macOS 26   
See Also: https://bugs.webkit.org/show_bug.cgi?id=199134
Attachments:
Description Flags
The preview of favicon rendering in Chrome, Firefox and Safari (top to bottom order) none

Pawel Grzybek
Reported 2026-03-13 23:57:13 PDT
Created attachment 478679 [details] The preview of favicon rendering in Chrome, Firefox and Safari (top to bottom order) SVG favicons don't respect media query overrides. Tested and reproduced on Safari Version 26.3. Here is a minimal reproduction example. ``` <!-- index.html --> <link rel="icon" href="/icon.svg" type="image/svg+xml" /> ``` ``` <!-- icon.svg --> <svg viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg"> <style> .bg { fill: #ffffff; @media (prefers-color-scheme: dark) { fill: #000000; } } </style> <rect x="0" y="0" width="100" height="100" class="bg" /> </svg> ``` Here is an example of a website that uses this technique. https://nn1.dev
Attachments
The preview of favicon rendering in Chrome, Firefox and Safari (top to bottom order) (1011.26 KB, image/jpeg)
2026-03-13 23:57 PDT, Pawel Grzybek 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Karl Dubost
Comment 1 2026-03-16 18:01:08 PDT
Confirmed. Thanks for the testcase.
Karl Dubost
Comment 2 2026-03-16 20:44:25 PDT
Maybe the same bug than Bug 199134
Anne van Kesteren
Comment 3 2026-03-16 23:01:52 PDT
No, we need to do something different for favicons.
Anne van Kesteren
Comment 4 2026-03-16 23:02:05 PDT
<rdar://150316861>
Owl
Comment 5 2026-04-11 06:52:35 PDT
I hope this can be implemented soon. Currently trying to create a light and dark mode friendly SVG icon for OpenWrt’s LuCI interface and Safari is the only one that ignores the prefers-color-scheme to show the dark mode version of the icon. At this point I am just accepting that Safari currently only uses the light mode/default icon, even if it is very poorly contrasting the Safari UI in dark mode.
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