Bug 220775

Summary:	Safari 14.0.2 seems to have broken some WebPs
Product:	WebKit	Reporter:	Eric Portis <e>
Component:	Images	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED DUPLICATE
Severity:	Major	CC:	ysuzuki
Priority:	P2
Version:	Safari 14
Hardware:	Mac (Intel)
OS:	macOS 10.15

Description Eric Portis 2021-01-20 11:31:53 PST

Some WebP images that worked on 14.0.1 on both Big Sur and iOS are broken on 14.0.2.

Test page: https://codepen.io/eeeps/pen/GRjLRrV

14.0.2
Big Sur screenshot: https://o.img.rodeo/14.0.2-webp/Screen_Shot_2021-01-20_at_10.20.36_AM.png
(left WebP fails, right WebP succeeds)
iOS 14.3 screenshot: https://o.img.rodeo/14.0.2-webp/IMG_4A1C1C0C29B3-1.jpg
(ditto)

14.0.1
Big Sur screenshot (via Browserstack...): https://o.img.rodeo/14.0.2-webp/Screen_Shot_2021-01-20_at_11.28.17_AM.png
(both images succeed)

Here's another test page for what seems like the same issue, and an associated support ticket for Cloudflare:
https://campaign.kurly.com/test/webp.html
https://community.cloudflare.com/t/fully-transparent-png-file-that-was-converted-webp-format-desnt-work-on-safari-14-0-2/231297)


This appears to be affecting some (not all) WebPs generated from both Cloudflare and Cloudinary.

Comment 1 Yusuke Suzuki 2021-01-20 11:48:58 PST

Looks like this is dupe of 219977

*** This bug has been marked as a duplicate of bug 219977 ***