headless=new breaks DevTools Chrome/Driver 1.22

[Philip Smith]

I'm using the following config with Chrome/ChromeDriver 1.22.

I'm using docker containers. All works however if I'm using '--headless=new' then DevTools no longer works, but file downloads do.

If I use '--headless', file downloads fail but DevTools works - no other changes are being made.

My function that works is below, showing the '--headless=new' setting which means that I get the files downloaded to '/var/tmp/'.

    def start_driver(self):

        logging.info('Configuring Driver')

        # Set up the options for the browser

        chrome_options = webdriver.ChromeOptions()

        prefs = {

            "profile.default_content_setting_values.notifications": 2,

            "download.default_directory": "/var/tmp/",

            "download.prompt_for_download": False,

            "download.directory_upgrade": True,

        }

        service = webdriver.ChromeService(

            # log_output=subprocess.STDOUT,

            log_output='/var/tmp/webservice.log',

            service_args=['--log-level=INFO']

        )

        cloud_options = {}

        cloud_options['goog:loggingPrefs'] = {'browser': 'ALL'}

        chrome_options.add_experimental_option("prefs", prefs)

        chrome_options.add_argument('--disable-dev-shm-usage')

        chrome_options.add_argument('--headless=new')

        chrome_options.add_argument('--disable-gpu')

        chrome_options.add_argument('--no-sandbox')

        chrome_options.add_argument("--remote-debugging-address=0.0.0.0")

        chrome_options.add_argument("--remote-debugging-port=9222")

        chrome_options.add_argument('--disable-notifications')

        chrome_options.add_argument('--use-fake-ui-for-media-stream')

        chrome_options.add_argument('--use-fake-device-for-media-stream')

        # chrome_options.add_argument('--log-path=/var/tmp/chrome.log')

        chrome_options.add_argument('--user-data-dir=/var/tmp/chrome')

        chrome_options.add_argument('--log-format=json')

        chrome_options.add_argument('--log-level=0')

        chrome_options.add_argument('--enable-logging')

        chrome_options.add_argument('--v=1')

        chrome_options.set_capability('cloud:options', cloud_options)

        # chrome_options.binary_location = '/usr/bin/google-chrome'

        try:

            self.driver = webdriver.Chrome(

                options=chrome_options, service=service)

            # options=chrome_options)

            logging.info('Driver configured.')

        except Exception as e:

            logging.error('Driver Configuration Failed.')

            logging.error(e)