A browser polyfill (as an ES6 module) for the CustomEvent Constructor
An EventTarget Polyfill
A polyfill for creating CustomEvents on IE9+ if the native implementation is missing.
A polyfill for http://www.w3.org/TR/eventsource/
TypeScript definitions for event-source-polyfill
Web Components Polyfills
HTML Custom Elements Polyfill
Web Streams, based on the WHATWG spec reference implementation
Babel helper to create your own polyfill provider
Utilities for rendering Remote DOM elements using [React](https://reactjs.org/).
A browser polyfill for W3C EventSource (http://www.w3.org/TR/eventsource/)
A Babel plugin to inject imports to core-js@2 polyfills
A Babel plugin to inject imports to regenerator-runtime
Synthetic Shadow Root for LWC
Polyfill for the URLPattern API
ECMAScript 6 Symbol polyfill
A shim for the setImmediate efficient script yielding API
Polyfill of self.scheduler API
A Babel plugin to inject imports to core-js@3 polyfills
A Headers class polyfill and transformation library.
A polyfill for the internal diagnostics_channel module
EventSource polyfill for browser and node.js
the complete solution for node.js command-line programs
Cache polyfill for the ServiceWorker