ChromeOptions chromeOptions = new ChromeOptions();
chromeOptions.addArguments("--no-sandbox", "--headless", "--disable-gpu", "--window-size=1920,1200","--ignore-certificate-errors");

DesiredCapabilities cap=DesiredCapabilities.chrome();

cap.setCapability(ChromeOptions.CAPABILITY, chromeOptions);
cap.setCapability(CapabilityType.ACCEPT_SSL_CERTS, true);
WebDriver driver = new ChromeDriver(cap);

driver.get(url);

TimeUnit.SECONDS.sleep(1);

html = driver.getPageSource();