Twitter default Following Tab.js

// ==UserScript==
// @name        Twitter default Following tab
// @description Keep Following tab as your default tab
// @version     1.0
// @author      Ixion (illixion.com)
// @downloadURL https://gist.github.com/illixion/229c6229bfed8af2d4cf1eabbf518d0d/raw/fa20182836b68c77640ed09f47e31f88f970f080/Twitter%2520default%2520Following%2520Tab.js
// @match       https://twitter.com/home
// @match       https://mobile.twitter.com/home
// ==/UserScript==

function getElementByXpath(path) {
  return document.evaluate(path, document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;
}

(function () {
  'use strict';

    var interval = setInterval(function () {
        // get the tab that has tabindex="-1" and has a span child with text "Following"
        var tab = getElementByXpath('//*[@role="tab" and @tabindex="-1" and .//span[text()="Following"]]');        
        if (tab) {
            tab.click();
            // if aria-selected is true, then break the loop
            if (tab.getAttribute('aria-selected') === 'true') {
              clearInterval(interval);
            }
            return;
        }
    }, 100);
})();