Can't use the files from CDN
If I add the script using the CDN, I will get this error

> downloadable font: download failed (font-family: "Keyrune" style:normal weight:normal stretch:normal src index:1): content blocked source: http://cdn.jsdelivr.net/keyrune/latest/fonts/keyrune.woff2?v=3.0.1

hence no set symbol will be shown