Why Your React App Breaks When You Refresh on Vercel (And the 2-Minute Fix)

So you finally deploy your React app to Vercel. It works. You click around, everything's smooth. Then you navigate to another page, hit refresh and… Boom. 404 Page Not Found. https://media.giphy.com/media/v1.Y2lkPTc5MGI3NjExNzNlb2Y5cjM0b3ZoaGc1c2txaD...