Human boy working on web standards at Google
The visual viewport API gives you details on how the user zooms and scrolls around your page.
Async functions allow you to write promise-based code as if it were synchronous
A deep-dive into the service worker lifecycle.
Chrome 46 brought new methods to caches, as does Chrome 47, and probably 48. It never stops.
"Promises simplify deferred and asynchronous computations. A promise represents an operation that hasn't completed yet."
Every click interaction in mobile browsers is hampered with a 300ms delay, but that's gone in Chrome 32 for mobile-optimised sites!