visibilityjs
Wrapper for the Page Visibility API
Wrapper for the Page Visibility API
EventSource polyfill for browser and node.js
Common layer to be used by crypto libraries based on WebCrypto API for input validation.
A BroadcastChannel that works in New Browsers, Old Browsers, WebWorkers, NodeJs, Deno and iframes
Polyfill for the Proxy object
Test for deep equality - Node.js `assert.deepStrictEqual()` algorithm as a standalone module
Polyfill for Scoped CSS
A cross browser solution to scrolling during drag and drop.
Collection of Web polyfills.
A polyfill for the asynchronous clipboard API
Web Streams, based on the WHATWG spec reference implementation
MDN polyfills
Polyfill for CSS `position: sticky`
A Javascript polyfill for browsers that don't support the object-fit CSS property
Just code for one API by enjoying this polyfill for the Web Audio API.
React.createRef() polyfill
The URLSearchParams polyfill.
WebGL2 API Polyfills for WebGL1 WebGLRenderingContext
An implementation and polyfill of the Resize Observer draft.
A browser polyfill for W3C EventSource (http://www.w3.org/TR/eventsource/)