This tutorial explains how to add web push notifications to a domain and to all its subdomains using Pushpad.
If you are struggling with the error above, but all your icons of the push package are of the correct size, you have probably set the wrong DPI.
These days we have investigated an issue related to Safari.
Sometimes it happens that you subscribe to the push notifications of a website, but after some time you don’t receive notifications anymore.
At first we thought that our system had a bug, but it’s not like that.