How do I use custom font offline, on CocoonJS?

I scoured the earth for some info on this. Forums here, manuals, this https://www.scirra.com/tutorials/237/ho ... nts?page=2

But nothing works out.

Is there any possible way to use a custom font with CocoonJS without a net connection, so local storage of the font? I seem to only find 2-3 years old threads explaining how to do that but none work out.

Any help is appreciated (Spritefonts won't do unfortunately)

Managed to make a font work in Canvas+, which looks awful since it compresses and lowers colors or something. Webview+ which looks great in CocoonJS isn't showing the font. This hole has no end