$ git clone git@github.com:adaniliuk/webpack-sourcemap-testing.git$ cd webpack-sourcemap-testing$ yarn$ yarn build$ yarn test-> runs$ node test-sourcemaps.jsand throws error
$ git clone git@github.com:adaniliuk/webpack-sourcemap-testing.git$ cd webpack-sourcemap-testing$ yarn$ yarn build$ yarn test -> runs $ node test-sourcemaps.js and throws error