Created attachment 150318 [details] testcase Download the STIX fonts (especially the STIXGeneral font) http://sourceforge.net/projects/stixfonts/ and open the testcase. You'll see that only the non-plane 1 characters are displayed. I tested it on Safari 5.1.7 on Windows 7. Because of this bug, STIX fonts are disabled in MathJax. See https://github.com/mathjax/MathJax/issues/265
Does this work for you in Safari on OS X?
(In reply to comment #1) > Does this work for you in Safari on OS X? MathJax only disables these fonts on PC, so I would say it works on OS X. I asked the question on the MathJax issue.
I think non-BMP characters don’t work in any font in Safari on Windows.
See bug 24230.
*** This bug has been marked as a duplicate of bug 24230 ***