const agent = new http.Agent({family: 4});
axios.get("http://mywebsite.com", {
      httpAgent: agent
    })
    .then((response) => {
       console.log(response);
    })

With above code, I get below error

http_client.js:55
throw new Error('Protocol "' + protocol + '" not supported. ' +
^

Error: Protocol "https:" not supported. Expected "http:"
at new ClientRequest (_http_client.js:55:11)

I am using Axios 0.15.3 and Node 6.10.0 version