Bug 258655 - Safari TP 173 cannot show JPEG XL placed to the top of https://jpegxl.info
Summary: Safari TP 173 cannot show JPEG XL placed to the top of https://jpegxl.info
Status: RESOLVED MOVED
Alias: None
Product: WebKit
Classification: Unclassified
Component: Images (show other bugs)
Version: Safari Technology Preview
Hardware: Unspecified macOS 13
: P2 Normal
Assignee: Nobody
URL:
Keywords: InRadar
: 259361 (view as bug list)
Depends on:
Blocks: 208235
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Reported: 2023-06-28 19:18 PDT by Tetsuharu Ohzeki [UTC+9]
Modified: 2023-07-31 12:59 PDT (History)
5 users (show)

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Description Tetsuharu Ohzeki [UTC+9] 2023-06-28 19:18:29 PDT 
## Environment
- macOS 13.4.1（22F82）, Intel
- Safari TP 173 (Safari 17.0, WebKit 18616.1.20.2)


## Steps to Reproduce

1. Open https://jpegxl.info


## Actual Behavior

- "JPEG XL logo / browser support test" image is not shown.
    - Safari fails to decode?
- But the fallback image is also not shown.
- By Network Tab in Web Inspector, Safari downloaded https://jpegxl.info/logo.jxl.
    - The request was sent with `Accept: image/webp,image/avif,image/jxl,image/heic,image/heic-sequence,video/*;q=0.8,image/png,image/svg+xml,image/*;q=0.8,*/*;q=0.5` header.

## Expected Behavior

Show "JPEG XL logo / browser support test" image properly with JPEG XL.
Comment 1 Tetsuharu Ohzeki [UTC+9] 2023-06-29 04:33:39 PDT 
I confirmed this is reproduced on macOS 13.4.1 (Apple Silicon).
Comment 2 Alexey Proskuryakov 2023-06-30 11:26:09 PDT 
Tank you for the report, we are investigating.
Comment 3 Radar WebKit Bug Importer 2023-07-05 19:19:16 PDT 
<rdar://problem/111822589>
Comment 4 Myles C. Maxfield 2023-07-11 19:46:59 PDT 
We determined why this is happening. It's an issue with Apple's internal build system. Moving to <rdar://problem/111822589>
Comment 5 Alexey Proskuryakov 2023-07-20 13:13:47 PDT 
*** Bug 259361 has been marked as a duplicate of this bug. ***
Comment 6 Alexey Proskuryakov 2023-07-27 18:55:49 PDT 
Please test with STP 175.
Comment 7 Myles C. Maxfield 2023-07-27 20:29:25 PDT 
STP 175 does indeed have JPEG XL enabled, but we are tracking an issue about graphical distortion using it. We are investigating them at https://bugs.webkit.org/show_bug.cgi?id=259587
Comment 8 Myles C. Maxfield 2023-07-31 12:59:02 PDT 
We are intentionally disabling JPEG XL on Ventura and Monterey (but not Sonoma, and not non-macOS) until we can figure out the graphical distortion problem. See commits.webkit.org/266408@main
Comment 9 Myles C. Maxfield 2023-07-31 12:59:16 PDT 
*** intentionally and temporarily disabling