Web App Install Banner

You can deploy code on Firebase directed, because that hosting support HTTPS.

Requirement

• Is served on HTTPS
• Service worker registered on your site
• Has a web app manifest with
  • short_name
  • 192x192 png icon
  • a related_applications object with information about the app
• Be visited by the user twice, over two separate days during the course of two weeks.
• For testing usefully, enable chrome://flags/#bypass-app-banner-engagement-checks

Demo Screen

https://install-banner.firebaseapp.com/

Reference

• https://developers.google.com/web/fundamentals/app-install-banners/
• https://developer.mozilla.org/zh-TW/docs/Web/Manifest
• https://ithelp.ithome.com.tw/articles/10191976?sc=rss.qu