Missing core‑js polyfills after @babel/preset‑env compilation
When compiling a project with @babel/preset-env , the resulting bundle runs in Node 10 and throws ReferenceError: Promise is not defined . The Babel configuration is Babel 7.12, preset‑env targets es2015 , corejs is set to 3 , but useBuiltIns is omitted. The build is produced with babel-cli and executed in an older runtime. The error suggests a missing polyf