Two weeks ago we shipped changes that cut Portable Wallets execution time by at least 40% at both p75 and p90. INP for interactions related to those scripts dropped ~25%. Overall INP improved by −8 ms (p75) and −16 ms (p90) across all Shopify stores using quick buy buttons 🚀

#JavaScript: When it comes to breaking up long tasks, the scheduler API seems quite convenient: await scheduler.yield(); Alas, not supported by Safari yet: caniuse.com/mdn-api_sche... Thankfully, providing your own fallback implementation is easy: web.dev/articles/opt...

✨ SPDY STREAM 011 ✨ w/ @krzksz.bsky.social & @yoav.ws After deploying the SPECULATION RULES API to their merchants, they join me this week to discuss the experience and their findings. Join us! (updated day and time) 📆 Thursday Sept 25 ⏰ 11am EST, 5pm CEST 🔗 bit.ly/spdy-stream-011