progressive-web-apps

If my web app consists of more than one subdomain, does that mean I have to have multiple service workers, one for each subdomain? Or can I have one service worker that works across subdomains? Each subdomain is considered a different origin, so yes, you will need to register a service worker for each one. Each of these workers will have its own cache and scope. Each subdomain is considered a different origin and you must register a service worker for each origin but you can reuse the same source for the service worker by setting the Service-Worker-Allowed response header to the list of scopes

It is written here that the push notifications will work even if the browser is closed, but I tested it and it is not the case. I receive push-notifications only if the browser is open (doesnt matter if the particular webpage is open or not). I tested this on chrome for Desktop & chrome for Android (after updating to latest version). my question is :- For push notifications to work should the browser be open? Note:- I used this for testing. According to Can I Use , Chrome and Firefox desktop browsers require the browser to be running for receiving push notifications; mobile browsers typically

Does the new iOS 12 safari support web push notification with service worker? In the last version of iOS there was service worker but there wasn't the pushManager object. iOS don't support the W3C Spec web push notifications yet. But there is a Safari specific API for web notifications. Refer to this answer on multiple options you have. https://stackoverflow.com/a/49803408/1057093 Update: Corrected the Answer in the above link to clarify proprietary solution is only for OS X - Safari and no solution for iOS Safari yet. Custom in app notification is the best we can do today for iOS Safari. I