Polyfills for web worker's missing objects: localStorage, indexedDB etc
Tiny and mostly spec-compliant WebWorker polyfill
A tiny WebWorker polyfill for the file:// protocol
A tiny shim for WebWorker (data URI only) that works in Node.
A tiny WebWorker polyfill for the file:// protocol
ASP.NET Core SignalR Client
Web Streams, based on the WHATWG spec reference implementation
Babel helper to create your own polyfill provider
A Babel plugin to inject imports to regenerator-runtime
A Babel plugin to inject imports to core-js@2 polyfills
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.
Promise for webworkers
Lightweight promise polyfill. A+ compliant
Bare minimum fetch polyfill in 500 bytes
A window.fetch polyfill.
A lightweight and trustworthy URL polyfill for React Native
A robust & optimized `String.prototype.includes` polyfill, based on the ECMAScript 6 specification.
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