Website name will be auto-filled when message title is left blank
Website URL
URL must be started with "https://"
4. Upload sw.js
Download sw.js file and upload it to the root path of your website. (ex. If the file sw.js is located in the 'example.com' domain, it should be accessible at example.com/sw.js)
If you upload it correctly, you should be able to access it externally like this: