Sentry Source Maps Not Working After a Vite Deploy

Last month a React/Vite release gave us the worst kind of production alert: Sentry had the error, but the stack trace pointed at assets/index-9f3a.js:1:48291. The customer saw a blank panel in admin, support had a screenshot, and our logs only said Cannot read properties of undefined. The bug was real, but without source maps every frame landed in the minified bundle, so triage turned into…