Quick example of replacing referer on login request

login-router.js

const _ = require('lodash');
const axios = require('axios');
const qs = require('querystring');
const axiosCookieJarSupport = require('axios-cookiejar-support').default;
const tough = require('tough-cookie');

class Router {

	axios;

	constructor(ref) {

		axiosCookieJarSupport(axios);
		const cookieJar = new tough.CookieJar();

		// Set your defaults here
		ref = ref ? ref : {
			domain: 'www.blackhatworld.com',
			path: 'seo/need-simple-script-to-fake-referrer.1239917/'

		};

		const config = {
			headers: {
				'Referer': `https://${ref.domain}${ref.path}`,
				'Origin': `https://${ref.domain}`,
				'Host': ref.domain,
				'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.129 Safari/537.36',
				'Content-Type': 'application/x-www-form-urlencoded' // Change to your content type, ie https://stackoverflow.com/questions/23714383/what-are-all-the-possible-values-for-http-content-type-header

			},
			withCredentials: true,
			jar: cookieJar
		};

		this.axios = axios.create(config);

	}

	// You would edit this to whatever you need

	async login(endpoint) {
		return new Promise(async (resolve, reject) => {
			try {

				let data = qs.stringify({
					                        'username': 'LOGIN',
					                        'password': 'PASSWORD'
				                        });

				let response = await this.axios.post(endpoint, data);

				if (response.data.result) {
					resolve(response.data.result);
				}
				else {
					reject('Request failed.');
				}

			} catch (err) {
				reject(err);
			}
		});
	}

}

/**
 * Example use
 *
 */

const router = new Router({ domain: 'www.google.com', path: '/somepath' });

router.login('https://www.google.com/someloginendpoint').then(response => {
	console.log(response);
});

module.exports = Router;