Polyfill Packages

Tiny KeyboardEvent#key shim for IE and MS Edge

HTML5 HTMLElement.dataset ponyfill

PostCSS plugin that updates the standard object-fit tag to work with the object-fit-images polyfill for browsers that do not natively support object-fit.

Transit is a data format and a set of libraries for conveying values between applications written in different languages. This library provides support for marshalling Transit data to/from Javascript.

The default blueprint for ember-cli addons.

<form>.requestSubmit() polyfill

CSSOM-valid and jsdom/Jest-compatible matchMedia polyfill for server-side unit tests

ES6 Harmony like collections such Map, WeakMap, and Set

ECMAScript Map like object.

ES2015 Number.MAX_SAFE_INTEGER ponyfill

A polyfill for SVG's SVGPathSeg and SVGPathSegList

Creating a common API for WebRTC in the browser

Polyfill for Function.prototype.bind

Polyfill for the Encoding Living Standard's API.

Polyfill for making HTML5 drag and drop possible in all browsers.

Polyfill for RFC 566: @cached

Polyfill for navigator.sendBeacon()

A polyfill for the `let` helper in Ember < 3.2

A canvas.toBlob() implementation

Development server for modern web apps