RESOLVED MOVED 248003
SVG path artifact showing up along bounding box 
https://bugs.webkit.org/show_bug.cgi?id=248003
Summary SVG path artifact showing up along bounding box
Jonathan Olson
Reported 2022-11-16 17:29:29 PST
Created attachment 463562 [details] A horizontal black line appears incorrectly above the arrow Overview: As of Safari 16, visual artifacts (1-pixel wide lines) are showing up as if they are part of a stroked path. This is reproducible, persistent, and appears to happen along the top edge of the bounding box of the path. Steps to reproduce: View the following HTML: <html> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>Arrow bug test</title> </head> <body> <svg focusable="false" width="1502" height="566"> <g transform="matrix(0.84317049365593055299,0.00000000000000000000,0.00000000000000000000,0.84317049365593055299,319.29670724816355686926,0.00000000000000000000)"> <g transform="scale(0.80000000000000004441)"> <path d="M 429.73685877293036128322 152.33263688218951870113 L 475.96967537052415764265 314.78633972164936949412 L 471.16063094948151501740 316.15494914600617448741 L 482.48002585411597920029 328.52916827259900856006 L 485.58776421260949973657 312.04912087293575950753 L 480.77871979156685711132 313.41773029729256450082 L 434.54590319397306075189 150.96402745783271370783 L 429.73685877293036128322 152.33263688218951870113 Z" style="fill: rgb(50,130,215); stroke: rgb(64,64,64);"></path> </g> </g> </svg> </body> </html> Actual results: <attached> (there is a black line above the arrow) Expected results: There should be no black line along the top. It should just show the arrow Build Date & Hardware: macOS 13.0.1 Safari Version 16.1 (18614.2.9.1.12) Release 157 (Safari 16.4, WebKit 18615.1.11.7) Additional information: Discovered in https://github.com/phetsims/geometric-optics-basics/issues/31. Adding "M0 0" at the end of the SVG path definition seems to prevent the bug from happening.
Attachments
A horizontal black line appears incorrectly above the arrow (12.93 KB, image/png)
2022-11-16 17:29 PST, Jonathan Olson 		no flags
Details
Test case (958 bytes, text/html)
2022-11-17 09:59 PST, Simon Fraser (smfr) 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Alexey Proskuryakov
Comment 1 2022-11-16 22:05:23 PST
I can reproduce as described.
Simon Fraser (smfr)
Comment 2 2022-11-17 09:59:53 PST
Created attachment 463588 [details] Test case
Simon Fraser (smfr)
Comment 3 2022-11-17 10:00:39 PST
Can you reproduce in Safari Tech Preview 157?
Jonathan Olson
Comment 4 2022-11-17 11:33:40 PST
I was able to reproduce this in Safari Tech Preview 157.
Radar WebKit Bug Importer
Comment 5 2022-11-23 17:30:16 PST
<rdar://problem/102635866>
Said Abou-Hallawa
Comment 6 2023-01-11 11:33:33 PST
I can reproduce this bug on MacBook Pro AS only. I can't reproduce it on Intel machines. Bug is in a component below WebKit.
Simon Fraser (smfr)
Comment 7 2023-02-20 11:01:33 PST
*** Bug 245652 has been marked as a duplicate of this bug. ***
Simon Fraser (smfr)
Comment 8 2023-02-20 11:02:24 PST
*** Bug 252133 has been marked as a duplicate of this bug. ***
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