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TIL: @Cloudflare doesn't support the
Vary
HTTP header, which means the origin server can't do any content negotiation, for example send WebP or AVIF for a JPEG request… <developers.cloudflare.com/cache/about/cache-control/#other> @fastly supports it, just saying… 😅 nicolas-hoizey.com/notes/2022/03/15/3/ -
It looks like @Cloudflare supports
Vary
for images after all: blog.cloudflare.com/vary-for-images-serve-the-correct-images-to-the-correct-browsers/ (The docs should be updated IMHO) But only for Pro, Business, and Enterprise Customers… 😞