chromiumVendor.js

async function chromiumVendor(){
  let chromium=navigator.userAgent.includes("Chrom")
  if(!chromium) return null
  if(navigator.userAgent.includes("Edg")) return "microsoft"
  if(navigator.brave) return "brave"
  let google=await new Promise(cb=>{
    let ae=false;
    function ov(){
      cb(speechSynthesis.getVoices().filter(e=>e.name.includes("Google")).length!=0)
      if(ae) speechSynthesis.removeEventListener("voiceschanged", ov)
    }
    if(speechSynthesis.getVoices().length==0) {
      ae=true
      speechSynthesis.addEventListener("voiceschanged", ov)
    } else ov()
  })
  if(google) return "google"
  return "other"
}