A window.fetch JavaScript polyfill.

Standard Library

History.js gracefully supports the HTML5 History/State APIs (pushState, replaceState, onPopState) in all browsers. Including continued support for data, titles, replaceState. Supports jQuery, MooTools and Prototype. For HTML5 browsers this means that you can modify the URL directly, without needing to use hashes anymore. For HTML4 browsers it wi…

Automatic polyfill service.

ECMAScript 5 compatibility shims for legacy (and modern) JavaScript engines

🐕 Bare minimum 500b fetch polyfill.

A Javascript library for working with native objects.

Shim to insulate apps from spec changes and prefix differences. Latest adapter.js release:

👇💥 JavaScript library for handling Force Touch, 3D Touch, and Pointer Pressure.

A project committed to making file access and data transfer easier, efficient for React Native developers.

Polyfill for the HTML dialog element

🎚 HTML5 input range slider element jQuery polyfill

📱 Make videos playable inline on the iPhone (prevents automatic fullscreen)

🗻 Polyfill object-fit/object-position on <img>: IE9, IE10, IE11, Edge, Safari, ...

📡 BroadcastChannel to send data between different browser-tabs or nodejs-processes 📡 + LeaderElection over the channels https://pubkey.github.io/broadcast-channel/

A polyfill for the Resize Observer API

DEPRECATED: A position: sticky polyfill that works with filamentgroup/fixed-fixed for a safer position:fixed fallback.

Client-side support for CSS custom properties (aka "CSS variables") in legacy and modern browsers

Element.scrollIntoView ponyfills for things like "if-needed" and "smooth"

Use WebVR today, without requiring a special browser build.