ArcadEd: I am aware of the issue, but I'm not sure what is causing it. Another reason for the plugin rewrite, as it's been a while since I've touched the code. I already have a few ideas how to refactor it for usage, performance and compatibility.
kiyoshi: That was a reason I got down to make Spritefont. It may not be the most elegant to handle, but at least it works, so I don't have to pull my hair with web fonts anymore!
If only I could figure out why it won't play nice with CocoonJS... Some archaic black magic they didn't add support for, perhaps?