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
statusText: 'NOT FOUND',
        responseText: 'Resource not found'
      });
      setTimeout(function () {
        expect(config.baseURL).toEqual('/api');
        expect(config.url).toEqual('/foo');
        done();
      }, 100);
    });
  });
  it('should allow overriding Content-Type header case-insensitive', function (done) {
    var response;
    var contentType = 'application/vnd.myapp.type+json';
    axios.post('/foo', { prop: 'value' }, {
      headers: {
        'content-type': contentType
      }
    }).then(function (res) {
      response = res;
    });
    getAjaxRequest().then(function (request) {
      expect(request.requestHeaders['Content-Type']).toEqual(contentType);
      done();
    });
  });
  it('should support binary data as array buffer', function (done) {
    var input = new Int8Array(2);
    input[0] = 1;
    input[1] = 2;
    axios.post('/foo', input.buffer);