Bug 250786 - Apple Watch incorrectly sets Accept header with `image/webp` but cannot decode
Summary: Apple Watch incorrectly sets Accept header with `image/webp` but cannot decode
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: Images (show other bugs)
Version: Safari 16
Hardware: Other iOS 16
: P2 Normal
Assignee: Nobody
URL:
Keywords: InRadar
Depends on:
Blocks:
 
Reported: 2023-01-18 12:56 PST by styfle
Modified: 2023-01-18 14:12 PST (History)
4 users (show)

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Description styfle 2023-01-18 12:56:08 PST 
The web browser on Apple Watch (links sent in Messages/Mail open this way) will send the `Accept` header advertising `image/webp` but it cannot decode WebP images.

This bug appears to be affecting Apple Watch only (does not reproduce on macOS or iOS).

To reproduce, use iMessage to send the following link and tap to open on Apple Watch:

https://next-image-apple-watch.vercel.app

See related issue:

https://github.com/vercel/next.js/issues/21233
Comment 1 Radar WebKit Bug Importer 2023-01-18 14:12:45 PST 
<rdar://problem/104396846>