Look into using opentype.js to make font download

Opentype: https://github.com/nodebox/opentype.js

• Doesn't support CALT or LIGA
• Doesn't support kerning Now it does!

Zips: https://gildas-lormeau.github.io/zip.js/core-api.html#zip-writing https://stuk.github.io/jszip/documentation/examples.html