https://lists.w3.org/Archives/Public/public-webapps/2011JanMar/0197.html
Re: Proposal for a page visibility API from Glenn Maynard on 2011-01-20 (public-webapps@w3.org from...
page visibility apiproposalglennmaynardpublic
https://developer.chrome.com/blog/page-visibility-api-have-i-got-your-attention?hl=id
Page Visibility API - Apakah Anda sudah menarik perhatian? | Blog | Chrome for Developers
Untungnya, Page Visibility API baru memungkinkan aplikasi Anda mengetahui apakah aplikasi terlihat atau tidak.
page visibility apichrome for developersandasudahperhatian
https://5apps.com/news/stories?tags=page-visibility-api%2Cw3c
5apps News | Tags: page-visibility-api, w3c
Link list for PWA developers and designers
page visibility apinewstags