231686 2021-10-13 10:55:55 -0700 Browser crashes when drawing Japanese text on a canvas with some fonts 2021-10-14 23:05:49 -0700 1 1 1 Unclassified WebKit Canvas Safari 15 iPhone / iPad Other RESOLVED DUPLICATE 230187 InRadar P2 Major --- 1 mouad.debbar webkit-unassigned dino mmaxfield webkit-bug-importer wenson_hsieh oldest_to_newest 1803860 0 mouad.debbar 2021-10-13 10:55:55 -0700 ## TL;DR Repro: https://jsfiddle.net/9w2u1z7k/9/show Simply load the repro link above on an iPhone iOS 15 Safari. The browser will crash. Older versions of iOS work fine, so this is a regression in iOS 15. ## Details When drawing Japanese or Chinese text on a canvas (e.g. "こんにちは世界" or "測試") with a font chain that includes "-apple-system", the browser crashes. The problem disappears if the text is in English (e.g. "Hello World"). The problem also disappears if "-apple-system" is removed from the font family chain. 1803939 1 webkit-bug-importer 2021-10-13 13:28:49 -0700 <rdar://problem/84213820> 1804593 2 ap 2021-10-14 16:45:47 -0700 Duplicate of bug 230187? 1804633 3 wenson_hsieh 2021-10-14 18:02:26 -0700 (In reply to Alexey Proskuryakov from comment #2) > Duplicate of bug 230187? I've confirmed that it does not reproduce for me on a build of macOS that contains that fix. I think it's safe to assume that it's a dupe of #230187. 1804706 4 mmaxfield 2021-10-14 23:05:49 -0700 *** This bug has been marked as a duplicate of bug 230187 ***