Bug 201390

Summary: Regression: in SVG - RadialGradient doesn't render as part of a stroke
Product: WebKit Reporter: Opher Vishnia <opherv>
Component: SVGAssignee: Nobody <webkit-unassigned>
Status: RESOLVED MOVED    
Severity: Normal CC: jonathan.olson, megan_gardner, sabouhallawa, simon.fraser, webkit-bug-importer, zimmermann
Priority: P2 Keywords: InRadar
Version: Safari Technology Preview   
Hardware: iPhone / iPad   
OS: Unspecified   
See Also: https://bugs.webkit.org/show_bug.cgi?id=202383
Attachments:
Description Flags
Demonstration of the regression on iOS 13 vs 12 none

Opher Vishnia
Reported 2019-09-01 11:30:00 PDT
Created attachment 377827 [details] Demonstration of the regression on iOS 13 vs 12 Regression bug on Safari iOS13.1 beta (17A5821e): In an SVG - when applying a RadialGradient as a stroke of an element, the stroke doesn't render at all. (In contrast to a solid color for the stroke, which is rendered) This works as expected on iOS12. See attached screenshot A reduced test case can be found here: https://codepen.io/OpherV/pen/oNvemmL
Attachments
Demonstration of the regression on iOS 13 vs 12 (88.04 KB, image/jpeg)
2019-09-01 11:30 PDT, Opher Vishnia 		no flags
Details
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Radar WebKit Bug Importer
Comment 1 2019-09-01 13:50:35 PDT
<rdar://problem/54934773>
Simon Fraser (smfr)
Comment 2 2019-09-01 20:15:12 PDT
This bug is in a framework below WebKit, so we'll track it internally.
Opher Vishnia
Comment 3 2019-09-15 05:38:33 PDT
Are there any updates regarding this issue? (We don't have transparency since it was moved internally) I tested with the latest beta version and the issue was still present. Is a fix slated for 13 release? It affects products we already have in production...
Simon Fraser (smfr)
Comment 4 2019-09-15 14:00:26 PDT
I suggest you work around it for now.
Jonathan Olson
Comment 5 2019-09-19 12:26:09 PDT
Also noticing this in the iOS 13.0 that just went live, and in the 13.1 beta (on mobile devices, not able to reproduce in simulators or a MacBook). It seems to be happening whenever the start and end of the radial gradient is different, AND this seems to be happening in both Canvas and SVG (so it definitely seems to be a framework issue below WebKit). My own reproductions are at https://github.com/phetsims/scenery/blob/master/tests/radial-gradient.html.
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