Bug 149610

Summary: Valid GIF image appears broken
Product: WebKit Reporter: Eddie Kohler <ekohler+webkit>
Component: New BugsAssignee: Nobody <webkit-unassigned>
Status: RESOLVED INVALID    
Severity: Normal CC: ap
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Mac   
OS: OS X 10.10   
Attachments:
Description Flags
Working image.
none
Non-working image. none

Eddie Kohler
Reported 2015-09-28 17:05:52 PDT
Created attachment 262029 [details] Working image. This comment: https://github.com/kohler/gifsicle/issues/50#issuecomment-143871959 shows two 3-color, single-frame GIF images, 3840x1100 in size. The two images contain the same image data, encoded slightly differently. Both images are as far as I can tell valid GIFs, and they are both displayed correctly by Chrome and Firefox. But Safari and Webkit nightly (r190281) treat the first image as broken. I'm attaching the images too.
Attachments
Working image. (9.10 KB, image/gif)
2015-09-28 17:05 PDT, Eddie Kohler 		no flags
Details
Non-working image. (4.84 KB, image/gif)
2015-09-28 17:06 PDT, Eddie Kohler 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Eddie Kohler
Comment 1 2015-09-28 17:06:29 PDT
Created attachment 262030 [details] Non-working image.
Alexey Proskuryakov
Comment 2 2015-09-28 23:12:59 PDT
<rdar://problem/22892589>
Alexey Proskuryakov
Comment 3 2015-09-28 23:15:38 PDT
Thank you for the report! This image fails to open not just in Safari, but also in Preview.app. As such, this is an issue in lower level system framework, not in WebKit. I have moved it to Apple internal bug tracker for investigation. Closing as INVALID as a non-WebKit bug.
Alexey Proskuryakov
Comment 4 2015-10-27 09:06:39 PDT
This should work properly in OS X 10.11 El Capitan. Thank you again for the report!
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