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.

test/specs/requests.spec.js
}
    axios('/foo', {
      responseType: 'arraybuffer'
    }).then(function (data) {
      response = data;
    });
    getAjaxRequest().then(function (request) {
      request.respondWith({
        status: 200,
        response: str2ab('Hello world')
      });
      setTimeout(function () {
        expect(response.data.byteLength).toBe(22);
        done();
      }, 100);
    });
  });
  it('should support URLSearchParams', function (done) {
    var params = new URLSearchParams();
    params.append('param1', 'value1');
    params.append('param2', 'value2');
    axios.post('/foo', params);
    getAjaxRequest().then(function (request) {
      expect(request.requestHeaders['Content-Type']).toBe('application/x-www-form-urlencoded;charset=utf-8');
      expect(request.params).toBe('param1=value1&param2=value2');
      done();
    });
  });
});