Apparently, it's a refresh of the original one. web.dev/add-manifest/ @petele made a nice article about it. Seems to me its replacement for old manifest.json in web.dev/progressive-web-apps…
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Best easter egg? 😁 Web servers doesn't know which MIME to use for extension .webmanifest to serve this file, yet. It should be application/manifest+json w3c.github.io/manifest/#medi… @w3cdevs @w3c Just noticed the date, so I'm not sure right now 😏
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Replying to @yangWao @w3c
See the discussion on github github.com/w3c/manifest/issu…

Apr 8, 2020 Β· 9:49 AM UTC