[Webkit-unassigned] [Bug 45239] New: failure to display required ligatures

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Sun Sep 5 01:41:30 PDT 2010


           Summary: failure to display required ligatures
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Macintosh Intel
               URL: http://unifraktur.sourceforge.net/letterspacing.html#b
        OS/Version: Mac OS X 10.5
            Status: UNCONFIRMED
          Severity: Trivial
          Priority: P2
         Component: Text
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: j_mach_wust at shared-files.de

Steps to reproduce
1. Have a Latin fraktur (Latf) font that features correctly encoded required ligatures (e.g. the fonts at http://unifraktur.sf.net).
2. Use that font on a webpage (e.g. via style="font-family: YourFont;")
3. Display that page in Safari.

Expected result
Fraktur typography features required ligatures (ch, ck, ſt, tz). A correct fraktur font should encode them as required ligatures (through OpenType or AAT). A browser should honor that encoding – Firefox on Max OS X already does it!

Actual result
Safari (unlike Firefox!) appears not to display any ligatures in the Latin script at all, not even the required ligatures.

Example URL
This is an example of a webpage that embeds (through @font-face) a Latin fraktur font with correctly encoded required ligatures. The webpage also shows screenshots of the correct text rendering from Firefox:

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