Supporting IE11

We officially support recent versions of Chrome, Firefox, Safari and Edge.

Internet Explorer is not officially supported, as in we don’t run tests for it, but you can be mostly confident it works with the right polyfills. But it does come with a risk of unexpected results in styling or functionality.

Polyfills

NPM

npm install core-js whatwg-fetch abortcontroller-polyfill md-gum-polyfill resize-observer-polyfill

Yarn

yarn add core-js whatwg-fetch abortcontroller-polyfill md-gum-polyfill resize-observer-polyfill

import 'core-js';
import 'whatwg-fetch';
import 'abortcontroller-polyfill/dist/polyfill-patch-fetch';
// Order matters: AbortController needs fetch which needs Promise (provided by core-js).

import 'md-gum-polyfill';
import ResizeObserver from 'resize-observer-polyfill';

window.ResizeObserver ??= ResizeObserver;

export { default } from '@uppy/core';
export * from '@uppy/core';