https://drafts.csswg.org/css-fonts/#family-name-value "Any identifier which could be misinterpreted as a pre-defined keyword in the font-family value definition, or the CSS-wide keywords, is not allowed." We should be extra cautious to forbid usage of unquoted pre-defined keyword (serif, system-ui,...) when parsing a <family-name>
<rdar://problem/113746537>
Pull request: https://github.com/WebKit/WebKit/pull/16602
Pull request: https://github.com/WebKit/WebKit/pull/17938
Committed 268203@main (f52eb126c71f): <https://commits.webkit.org/268203@main> Reviewed commits have been landed. Closing PR #16602 and removing active labels.
*** Bug 262316 has been marked as a duplicate of this bug. ***