Bug 245420

Summary:

Safari 16 fails to correctly apply strokeStyle to canvas paths

Product:

WebKit

Reporter:

Paul Neave <paul.neave>

Component:

Canvas

Assignee:

Nobody <webkit-unassigned>

Status:

RESOLVED DUPLICATE

Severity:

Major

CC:

dino

Priority:

Version:

Safari Technology Preview

Hardware:

All

OS:

iOS 16

Attachments:

Description	Flags
Demo HTML/JS	none

Paul Neave

Reported 2022-09-20 04:07:30 PDT

Created attachment 462469 [details] Demo HTML/JS Major bug in Safari 16 (iOS and macOS) when drawing paths with strokeStyle in 2D canvas. The demo code below draws three small lines. One red, one blue, and the last one red. In Safari 16, the third line is incorrectly colored blue. ``` <html> <body> <canvas id="canvas"></canvas> <script> const canvas = document.getElementById('canvas'); const context = canvas.getContext('2d'); context.lineWidth = 6; context.beginPath(); context.strokeStyle = 'red'; context.moveTo(30, 50); context.lineTo(50, 50); context.stroke(); context.beginPath(); context.strokeStyle = 'blue'; context.moveTo(60, 50); context.lineTo(80, 50); context.stroke(); context.beginPath(); context.strokeStyle = 'red'; context.moveTo(90, 50); context.lineTo(110, 50); context.stroke(); </script> </body> </html> ``` In all other browsers, including previous versions of Safari, the strokeStyle color is adhered to on a third call. In Safari 16, it does not update the color and it stays on the previous color.

Attachments
Demo HTML/JS (555 bytes, text/html) 2022-09-20 04:07 PDT, Paul Neave	no flags	Details
View All Add attachment proposed patch, testcase, etc.

Alexey Proskuryakov

Comment 1 2022-09-20 18:36:49 PDT

*** This bug has been marked as a duplicate of bug 245145 ***

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