Babel not Polyfilling Fetch when using babel-preset-env

Question

I\'m using Webpack and Babel to build and transpile my ES6 code. However I am missing important Polyfills when trying to support older browsers. e.g iOS8.

Here\'s my

Answer 1

In my case Error was ReferenceError: fetch is not defined

I had the error on firebase with global this and server rendering, following some solutions,I ended up with adding a plugin in webpack then rebuilding I ended with a bunch of errors in the type of "multi ..." which are basically that there are multiple definitions of that library

    new webpack.ProvidePlugin({
           Promise: 'es6-promise',
           fetch: 'imports-loader?this=>global!exports-loader?exports!global.fetch!whatwg-fetch',}),
  

AND FINALLY IN RESOLVE section

mainFields: ['main']