static isSeleniumBot() {
        // noinspection JSUnresolvedVariable
        return window.navigator.webdriver === true;
    }
Check if the browser is controlled by Selenium.
Note: This only works within the geckodriver.
cf. http://stackoverflow.com/questions/33225947/can-a-website-detect-when-you-are-using-selenium-with-chromedriver

@returns {boolean}