node_modules/cross-fetch/dist/node-ponyfill.js

var nodeFetch = require('node-fetch');
var realFetch = nodeFetch.default || nodeFetch;

var fetch = function (url, options) {
  // Support schemaless URIs on the server for parity with the browser.
  // Ex: //github.com/ -> https://github.com/
  if (/^\/\//.test(url)) {
    url = 'https:' + url;
  }
  return realFetch.call(this, url, options);
};

fetch.polyfill = false;

module.exports = exports = fetch;
exports.fetch = fetch;
exports.Headers = nodeFetch.Headers;
exports.Request = nodeFetch.Request;
exports.Response = nodeFetch.Response;

// Needed for TypeScript.
exports.default = fetch;