Service worker can't be registered.

[hv0905]

Environment

• Environment: Staging(Pre-release)
• Last git commit: aaaaaa
• Platform: Web Desktop\Web Mobile\Electron\PWA\TWA
• Browser: Chrome\Edge\Firefox\Safari\Others

How to repro

Service worker can't be registered.

Expected situation

I expect that...

Other information

1. This is because navigator.serviceWorker.controller is null when sw isn't registered. But supportWebPush() will return false when it's null, which blocks the sw to be registered.
2. It's improper to check supportWebPush when registering sw, since sw provides many other functions, such as caching.