babel-plugin-es6-promise

Babel plugin that rewrites Promise references to the es6-promise polyfill only when necessary (i.e., when the native Promise is not available). Version 1.1.1 is the latest stable release. Key differentiator: it conditionally loads the polyfill based on environment, reducing bundle size for modern platforms. Requires es6-promise as a separate dependency (peer dependency). Tested with Node 0.10+, but primarily useful for legacy browser support and older Node versions.