script.js
navigator.serviceWorker.register("sw.js") async function send(){ const perm=await Notification.requestPermission() if (perm=="granted"){ const ws=new WebSocket("wss://ws.postman-echo.com/raw") ws.onopen=()=>{ ws.send("") } ws.onmessage=async ()=>{ const sw=await navigator.serviceWorker.ready sw.showNotification(``, { body: ``, icon: "" } ) } } }
sw.js
self.oninstall=()=>{}