This should "just work", and can build on the resolution to #68 .
https://www.google.com/search?q=http_proxy

This would allow proxying behind a corporate firewall without any/every 3rd party module using axios requiring code changes to support proxying.

lib/core/mergeConfig.js
'use strict';
var utils = require('../utils');
/**
 * Config-specific merge-function which creates a new config-object