+1 We ensure that React is advanced mode compatible and people routinely get pissed at me because I'm a stickler for bytes. But that's because React is a share

+1 We ensure that React is advanced mode compatible and people routinely get pissed at me because I'm a stickler for bytes. But that's because React is a shared core library where it's our job to be small and fast. When you're building an app, the trade-offs and priorities are different.