Bug 198334

Summary: SVG random lines appearing and legit lines disappearing while panning
Product: WebKit Reporter: y.chen5
Component: SVGAssignee: Nobody <webkit-unassigned>
Status: NEW    
Severity: Normal CC: sabouhallawa, simon.fraser, webkit-bug-importer, zalan, zimmermann
Priority: P2 Keywords: InRadar
Version: Safari 12   
Hardware: All   
OS: All   
Attachments:
Description Flags
full example + video
none
SVG file none

y.chen5
Reported 2019-05-29 08:33:57 PDT
Created attachment 370852 [details] full example + video Lines not defined in SVG will appear and disappear randomly when panning around. Lines defined in SVG might disappear randomly when panning around. Video: https://youtu.be/BqlItab0k_g No fancy SVG feature like script or media query. The only elements used are text/path Live exaple: https://codepen.io/alt22247/pen/vwzBmL Can't reproduce this with small files. The larger the file the worst this gets.
Attachments
full example + video (42.16 MB, application/x-zip-compressed)
2019-05-29 08:33 PDT, y.chen5 		no flags
Details
SVG file (97.77 KB, image/svg+xml)
2019-05-29 13:55 PDT, Said Abou-Hallawa 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Alexey Proskuryakov
Comment 1 2019-05-29 13:42:42 PDT
I can reproduce. Looks like lines that span tiles sometimes draw wrong.
Radar WebKit Bug Importer
Comment 2 2019-05-29 13:43:04 PDT
<rdar://problem/51234986>
Said Abou-Hallawa
Comment 3 2019-05-29 13:55:06 PDT
Created attachment 370882 [details] SVG file
Simon Fraser (smfr)
Comment 4 2019-05-29 13:58:50 PDT
This looks like a bug in a framework below WebKit.
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