iOS/Safari 17 does not support COLR/CPAL (v0) format color font

I take these websites to test COLR/CPAL(v0) format color font:

  1. https://yoksel.github.io/color-fonts-demo/
  2. https://pixelambacht.nl/chromacheck/

In my iOS 17 device, both websites show unsupported of COLR/CPAL (v0) color font, however, on my other iOS 16 devices, it is supported.

COLR/CPAL (v0) color font format is widely supported on mainstream browsers currently, from Blink (Chrome) to WebKit (Safari desktop), why does iOS deprecate it?

  • May be best to file a bug report on <https://bugs.webkit.org/> about this issue with a reproducible test case (or links to those websites if they reproduce the bug).

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