Tobias Ahlin - animation performance
- Pseudo elements for animations perform very well
Paul Bakausperfmatters
- context for performance is very important
- waiting times increase anticipation
- perception of value → locksmith
- preemptive start: load logged in state on login screen
- resource hints
- precognition
Bram Stein webfonts
- font-display value with “fallback”
- preload tag, not available yet
- fontsloading API in JavaScript, style unstyled content using events and body classes
Marcy Sutton - accessibility
- Accessibility tree
- default inputs have good Accessibility
- -airbnb is usable without js
Karl groves
-screen readers need to know what is happening → live results
Estelle weyl
- don’t make your site pretty, make it usable
Yan
- letsencrypt (uses challenges to identify domains)
Tobias
- http2 progressive jpegs usimg scanlines
@Detonite