My Angular 2 app coded in typescript 2 uses this polyfill. I have set module:"es2015" in tsconfig.json to allow for tree-shaking using Rollup.js as recommended by Angular

When I run the app in the browser, I get the error

global is not defined

I have tried using rollup-plugin-commonjs to convert the library to es2015

rollup.config.js

plugins: [
        nodeResolve({jsnext: true, module: true}),
        commonjs({
            include: 'node_modules/intl/**/*',
        })
]

When I run the app in the browser, I get the error:

IntlPolyfill is not defined

On a line like:

IntlPolyfill.__addLocaleData({locale:"en-US",...});

I noticed here that the library is written in es6 so it should be compatible with rollup. Any tips on how to use this library as es6 modules?