Test repo for Chrome extensions service worker migration questions
In my observation it gets killed approximately every 320 seconds in version 89.0.4328.0 (Official Build) canary (x86_64)
Install unpacked extension from the dist folder
Inspect web socket
Open this page — https://github.com/maikudou/chrome-service-worker
Inspect page
Observe logs in consoles
Socket lives untill there are connections to it and to sockets form it
Socket is killed every 320 seconds