<script>
if ('serviceWorker' in navigator) {
window.addEventListener("load", () => {
navigator.serviceWorker.register('/sw.js')
.then(reg => console.log("Service worker registered"))
.catch(err => console.error(`Service Worker Error: ${err}`));
});
} else {
console.log("Service Worker is not supported by browser.");
}
</script>
JS Service Worker
![](https://media.dev.to/cdn-cgi/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F914425%2F2e229c80-c8c3-4133-863f-e8630e9cb717.png)