https://build.mozilla.org/tryserver-bui ... ablefonts/
- Known bugs:
- Windows: Postscript-style OTF fonts (i.e. CFF fonts) don't load
- Mac: Every now and then font load will fail and fallback font will show, investigating
- same-site origin restriction enabled by default (site A can't refer to fonts on site B)
- restriction can be disabled with gfx.downloadable_fonts.same-site-origin.enabled in about:config
- use of access control headers to allow cross-site usage not yet implemented
- for now, fonts are stored in mozfontxxx.ttf files in system temp directory. These may not get cleaned up if a crash occurs.
- unicode-range not yet implemented




