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Valid WebP image does not display in Safari 
https://bugs.webkit.org/show_bug.cgi?id=235316
Summary Valid WebP image does not display in Safari
Paul Neave
Reported 2022-01-18 04:03:44 PST
Created attachment 449378 [details] Sample WebP image The attached WebP image does not display correctly in Safari. It is a simple transparent image with a horizontal line. It loads and displays correctly in Chrome and Firefox. This affects Mac and iOS Safari browsers.
Attachments
Sample WebP image (84 bytes, image/webp)
2022-01-18 04:03 PST, Paul Neave 		no flags
Details
Another WebP image (54 bytes, image/webp)
2022-08-10 03:44 PDT, Paul Neave 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Radar WebKit Bug Importer
Comment 1 2022-01-19 13:00:09 PST
<rdar://problem/87786954>
Sam Sneddon [:gsnedders]
Comment 2 2022-01-21 08:28:03 PST
This isn't a WebKit bug, but rather in ImageIO, given opening it in Preview equally causes an error.
Paul Neave
Comment 3 2022-01-24 06:32:25 PST
Thanks Sam. Is this Apple's ImageIO? https://developer.apple.com/library/archive/documentation/GraphicsImaging/Conceptual/ImageIOGuide/imageio_intro/ikpg_intro.html If so, can a bug report be filed there?
Paul Neave
Comment 4 2022-08-10 03:44:44 PDT
Created attachment 461525 [details] Another WebP image Here’s another example of a WebP image that fails to load in Safari and Mac Preview. This bug only seems to affect very simple and/or highly compressed images such as this one.
Sam Sneddon [:gsnedders]
Comment 5 2022-08-10 15:28:43 PDT
(In reply to Paul Neave from comment #3) > Thanks Sam. Is this Apple's ImageIO? > https://developer.apple.com/library/archive/documentation/GraphicsImaging/ > Conceptual/ImageIOGuide/imageio_intro/ikpg_intro.html If so, can a bug > report be filed there? Ah, sorry, I missed this previously. See https://feedbackassistant.apple.com, though I did forward the original bug there. (And it does now work on macOS 13 beta 5.) (In reply to Paul Neave from comment #4) > Created attachment 461525 [details] > Another WebP image > > Here’s another example of a WebP image that fails to load in Safari and Mac > Preview. This bug only seems to affect very simple and/or highly compressed > images such as this one. That also works on macOS 13 beta 5.
Paul Neave
Comment 6 2022-08-11 05:56:33 PDT
That's great, thanks Sam. Hopefully this fix will come to iOS 16 too.
Sam Sneddon [:gsnedders]
Comment 7 2022-08-11 07:18:51 PDT
(In reply to Paul Neave from comment #6) > That's great, thanks Sam. Hopefully this fix will come to iOS 16 too. It should also work on iOS 16 beta 5 (it's, uh, just easier to verify on the computer I'm typing on); there shouldn't be any difference here.
Alexey Proskuryakov
Comment 8 2022-08-15 09:04:56 PDT
*** Bug 243930 has been marked as a duplicate of this bug. ***
Xidorn Quan
Comment 9 2022-08-15 14:56:57 PDT
Is there any chance that the fix would be backported to earlier versions?
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