Incremental Font Transfer focuses on a new dedicated server-side protocol, PatchRequest, based on the optimal results it demonstrated in the initial research reported in the Progressive Font Enrichment report w3.org/TR/PFE-evaluation/
This is particularly useful for languages where fonts need to cover a very wide range of characters - typically when an ideographic writing system is used (e.g. in Chinese and Japanese) - downloading a multi-mega bytes font for a page makes downloadable fonts unpractical.
Secure Payment Confirmation is a proposal to prevent fraud in on-line payments while keeping as smooth a user experience as possible using authenticators (e.g. on-device fingerprint confirmation) via #WebAuthN - and the experiment run by @stripe is showing impressive results!
Secure Payment Confirmation combines built-in browser payment primitives with Web Authentication #WebAuthn to enable 2-factor confirmation of on-line payments, as an alternative to e.g. SMS-based validation
2️⃣ DOM Overlays allows to reuse #HTML & #CSS to overlay interactive content on top an #AR view, e.g. to build a user interface. Watch @AdaRoseCannon demo and explanation of the DOM Overlays #APIyoutube.com/iQDDa549TN8