Chrome on XP can't access some web-font characters

[dpvc]

Chrome on Windows XP can't access four character from the web fonts used by MathJax. These are the combining arrow above (U+20D7), the combining dot above (U+0307), combining double acute accent (U+030B), and the combining long solidus overlay (U+0338).

[fred-wang]

Is is specific to web fonts or does it also happen with local fonts?

[dpvc]

I think it also affects local fonts.

[dpvc]

Of course, the characters affected seem to change from version to version.

[fred-wang]

Marking "Do Not Write Automated Test". This kind of bug when a browser can't access a character from a font is difficult to test and tests like "comparing if two different characters display differently" are not really efficient, especially if the set of characters affected changes from version to version. I prefer to let you doing manual testing.

[dpvc]

This is a duplicate of issue #239.

[dpvc]

The issue239 branch of my fork of MathJax works around the characters that Chrome can't display. The dot, double acute accent, and solidus overlay were relatively easy, as other characters in the font could be used for these. The vector arrow was harder as I had to use the regular right arrow, which is too big. But at least it gets the point across.