> The background for this proposal is that the PUA semantics are defined to be custom to the font - using system wide fallback for them is highly unlikely to return meaningful results to avoid .notdef's. Mostly, yes (there are some exceptions, like [CSUR](http://www.evertype.com/standards/csur/)). > the semantics of codepoints in PUA are intentionally undefined They should be, yes (CSUR is an _intentionally informal_ arrangement for developers of fonts for conlangs) > https://drafts.csswg.org/css-fonts/#char-handling-issues Right, agree this actually covers this already. -- GitHub Notification of comment by svgeesus Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/2110#issuecomment-361334336 using your GitHub accountReceived on Monday, 29 January 2018 18:10:26 UTC
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