Bug 232043

Summary:	Regression: Safari Tab Crashing on iOS 15.0 when Japanese text is drawn onto a Canvas with -apple-system font
Product:	WebKit	Reporter:	Jesse Jorgenson <jjorgenson>
Component:	Canvas	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED DUPLICATE
Severity:	Major	CC:	dino
Priority:	P2
Version:	Other
Hardware:	iPhone / iPad
OS:	Other
URL:	https://codepen.io/jessejorgenson/pen/abymLLX

Description Jesse Jorgenson 2021-10-20 14:14:00 PDT

Minimum Repro: https://codepen.io/jessejorgenson/full/abymLLX and https://codepen.io/jessejorgenson/pen/abymLLX

When drawing text onto a Canvas via context.fillText, Safari on iOS 15 is crashing if that text is Japanese and you use `-apple-system` in your font list. If you remove `-apple-system` or the Japanese characters, the crash stops.

Notes
* I can reproduce this in both the simulator with iOS 15.0 and physical iPad with iPadOS 15.0
* We cannot reproduce this on iOS 14 and below
* I also saw the crash when using `system-ui` in the font list

Comment 1 Sam Sneddon [:gsnedders] 2021-10-21 02:11:57 PDT


*** This bug has been marked as a duplicate of bug 230187 ***