weird, i haven't had that issue! i run a site that's set up¹ to redirect image requests to a WebP version if the Accept header allows it; half our team uses Macs w/ Safari and no one reported any issues with images.

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¹ wordpress + webp-express: https://github.com/rosell-dk/webp-express i guess it's possible they special-case Safari, i'll check later

But whatever the case is, Safari definately does not support webp and special exceptions need to be made to support this edge case.

Nope you are right, when reading the linked issues, safari doesn’t have webp support.

  Accept: image/png, image/svg+xml, image/*;q=0, video/*;q=0.8, */*;q=0.5

i also tested it in Firefox, which sends:

  Accept: image/webp, */*

honestly, i'm not entirely sure how

  image/*;q=0
  */*

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edit: looking at the generated .htaccess, it appears that WebP is served only if Accept contains an explicit `image/webp` (no wildcards), so that explains it.

I count that as a good thing about ios safari.

Roll20 is also such a niche thing already it's not really a fair example. People who want to use roll20 will use another browser because they want to play dnd with their friends. Most stores don't have that social aspect.

It takes someone who really cares about these issues to bother switching back and forth between two different browsers because you want to use a non-Chromium for most things but have to use Chromium for a couple of things. The vast majority would just say "well, whatever" and switch completely.