Bug 207068

Summary: REGRESSION (STP): Animated box leaves trails on 1x display
Product: WebKit Reporter: Simon Fraser (smfr) <simon.fraser>
Component: Layout and RenderingAssignee: Nobody <webkit-unassigned>
Status: NEW    
Severity: Normal CC: ap, bfulgham, simon.fraser, webkit-bug-importer, zalan
Priority: P2 Keywords: InRadar
Version: Safari Technology Preview   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
Testcase
none
Non-compositing testcase none

Simon Fraser (smfr)
Reported 2020-01-31 13:53:08 PST
Created attachment 389408 [details] Testcase Attached test case shows the text in the box leaving pixel trails.
Attachments
Testcase (566 bytes, text/html)
2020-01-31 13:53 PST, Simon Fraser (smfr) 		no flags
Details
Non-compositing testcase (860 bytes, text/html)
2020-02-04 11:19 PST, Simon Fraser (smfr) 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Alexey Proskuryakov
Comment 1 2020-02-01 18:29:21 PST
I don't see a pixel trail in Safari 14608.4.9.1.4 on macOS Mojave, nor with STP 98. Is this a regression?
Simon Fraser (smfr)
Comment 2 2020-02-03 10:35:28 PST
Only seems to happen on non-Retina.
Alexey Proskuryakov
Comment 3 2020-02-03 13:56:04 PST
Cannot reproduce with Safari 13.0.5 of Mojave, can reproduce with STP 99.
Radar WebKit Bug Importer
Comment 4 2020-02-03 13:56:16 PST
<rdar://problem/59124327>
Simon Fraser (smfr)
Comment 5 2020-02-04 11:19:03 PST
Created attachment 389682 [details] Non-compositing testcase
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