Bug 216615

Summary:	CSS Styling changes OpenType substitution
Product:	WebKit	Reporter:	Stefan Huber <sh>
Component:	CSS	Assignee:	Nobody <webkit-unassigned>
Status:	NEW ---
Severity:	Normal	CC:	mmaxfield, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	Safari 13
Hardware:	All
OS:	All

Description Stefan Huber 2020-09-16 11:53:17 PDT

Steps to reproduce the problem:
If a formatting applies to a string where the characters should get replaced with a OpenType-Font-Feature (included in the Font) the replacement is no longer happening. Detailed description, comparisons, test-fonts and code in my bug report:
https://signalwerk.github.io/css-opentype-substitution/ 

This bug was also in Chrome and the bug got fixed in October 2019 (link in bug report). Firefox was not affected.

Comment 1 Radar WebKit Bug Importer 2020-09-16 13:28:21 PDT

<rdar://problem/69010422>