Polyfill CanvasRenderingContext2D and Path2D (currentTransform, resetTransform, imageSmoothingEnabled, etc...)
Polyfills Path2D api for canvas rendering
Path2D API for node. Can be used for server-side rendering with canvas
Babel helper to create your own polyfill provider
Web Streams, based on the WHATWG spec reference implementation
A Babel plugin to inject imports to core-js@2 polyfills
A Babel plugin to inject imports to regenerator-runtime
Polyfill for the URLPattern API
A Babel plugin to inject imports to core-js@3 polyfills
A polyfill for the internal diagnostics_channel module
A native "Headers" class polyfill.
Node.js os.homedir polyfill for older versions of node.js.
Bare minimum fetch polyfill in 500 bytes
A WebCodecs polyfill (ponyfill, really), using libav.js
Lightweight promise polyfill. A+ compliant
A window.fetch polyfill.
A robust & optimized `String.prototype.includes` polyfill, based on the ECMAScript 6 specification.
A lightweight and trustworthy URL polyfill for React Native
A polyfill for the Resize Observer API
Polyfills for various browsers including commonly used language features
Polyfill for Temporal (https://github.com/tc39/proposal-temporal), an ECMA TC39 Stage 3 proposal
A lightweight polyfill for Temporal, successor to the JavaScript Date object
Fast polyfill for TextEncoder and TextDecoder, only supports utf-8
Polyfill/ponyfill for the AbortController DOM API + optional patching of fetch (stub that calls catch, doesn't actually abort request).