How to send a notification to a user?

Question

Push technologies

https://peter-gribanov.github.io/serviceworker/ here on this site I changed the id token that was displayed on the smartphone. But it continues to send to the laptop

, what parameter should I specify to send it to a specific user?

Answer 1

Clear the cache on both devices and try to send again, the token always detects the device + browser and the service worker should receive "its" notifications