Here are ways to test notifications and get them working.
Full Test
If this works then you're all set.
If this app is not installed...
For best results, install this app on your device. In Chrome, it may
prompt you, and you can also look for the "Install" command in the
browser settings (as opposed to using it inside the broser app); on
the deskop, look for this icon in the address bar:
If "you must enable notifications"...
Wait for about 10 seconds (for the service worker to activate), then
Check App Permissions
In Apple iOS, check "Settings" -> "Notifications", look for the Time
Safari app (or the browser you're using), and make sure notifications
are enabled.
In Android, hold on to the app icon, then select "App Info", then
"Notifications" and make sure they're enabled. If you installed the
app with Chrome, go to Chrome "App Info", then "Storage & Cache" and
"Clear Storage"; this Chrome reset helps even if the app isn't run
inside the Chrome browser.
On a Mac, go to "Settings" and check "Notifications".
Check Browser Permissions
In Apple iOS, check Settings -> Notifications.
In Android, check Settings -> Notifications.
You can find more details about compatibility
here
Check OS Permissions
Mobile Phone - Apple iOS
Notifications require iOS 16.4 or higher. To check your iOS version,
go to Settings > General > About > Software Version.
Mobile Phone - Google Android
We recommend Chrome. It must be version 42 or higher. Check your
version under Settings -> About Chrome.
Desktop - Mac
Requires Mac OS 13; see your macOS version under Apple -> About
This Mac.
Windows desktop
In Windows, check Settings -> Notifications.
You can find more details about compatibility
here
Reinstall
If all else fails, uninstall the app, ensure all the browser tabs with
it are closed, and clear out caches and storage.
Clear cache for site. (In Chrome, go to `chrome://settings/cookies`
and "all site data and permissions"; in Firefox, go to
`about:preferences` and search for "cache" then "Manage Data", and
also manually remove the IndexedDB data if the DBs still show.)
Clear notification permission. (in Chrome, go to
`chrome://settings/content/notifications`; in Firefox, go to
`about:preferences` and search for "notifications".)
Unregister service worker. (in Chrome, go to
`chrome://serviceworker-internals/`; in Firefox, go to
`about:serviceworkers`.)
Clear Cache Storage. (in Chrome, in dev tools under Application; in
Firefox, in dev tools under Storage.)