blog/src/components/atoms/Typekit.tsx

import React from 'react'
import { Script } from 'gatsby'

const script = `
  (function(d) {
      var config = {
          kitId: '${process.env.GATSBY_TYPEKIT_ID}',
          scriptTimeout: 3000,
          async: true
      },
      h=d.documentElement,t=setTimeout(function(){h.className=h.className.replace(/\bwf-loading\b/g,"")+" wf-inactive";},config.scriptTimeout),tk=d.createElement("script"),f=false,s=d.getElementsByTagName("script")[0],a;h.className+=" wf-loading";tk.src='https://use.typekit.net/'+config.kitId+'.js';tk.async=true;tk.onload=tk.onreadystatechange=function(){a=this.readyState;if(f||a&&a!="complete"&&a!="loaded")return;f=true;clearTimeout(t);try{Typekit.load(config)}catch(e){}};s.parentNode.insertBefore(tk,s)
  })(document);
`

export default function Typekit(): JSX.Element {
  return <Script id="typekit" dangerouslySetInnerHTML={{ __html: script }} />
}