After I published my last article about building a Chrome extension that speaks browser notifications aloud, a commenter asked a question I didn't have a good answer to. He pointed out that a lot of web apps — Slack, Gmail, most modern tools — fire their notifications from a service worker via r...
Source: [Dev.to](https://dev.to/mbilalkhan192003/i-spent-a-week-trying-to-intercept-slack-push-notifications-from-a-chrome-extension-heres-why-9mc)