> Also, font testing should be made expensive [eg, one check per second]. Check if we have font "scrabble", OK, but not get list of all fonts. There's no way o

> Also, font testing should be made expensive [eg, one check per second]. Check if we have font "scrabble", OK, but not get list of all fonts. There's no way of doing that without making the whole browser really slow. Browsers don't expose any way to get a list of fonts: all you can do is try drawing some text with a given font "scrabble" and then see if it draws with different metrics to the fallback font. Therefore, you'd have to make every new font used on a page take a second before it got drawn, practically forcing every page to use a single font.