Selenium chrome帮助程序如何防止字体下载弹出窗口

Selenium for python chrome web driver (83.0.4103.39)。有时,打开网站时,会出现一个弹出窗口: Google Chrome Helper (Renderer).app needs to download the font XYZ :

from selenium import webdriver
from selenium.webdriver.chrome.options import Options

chrome_options = Options()
chrome_options.add_argument('--disable-gpu')
chrome_options.add_argument('--no-sandbox')
chrome_options.add_argument('--mute-audio')
chrome_options.add_argument('--headless')

chrome_options.add_experimental_option(
    'prefs', {
        'download.prompt_for_download': False,
        'download.default_directory': '/dev/null',
        'automatic_downloads': 2,
        'download_restrictions': 3,
        'notifications': 2,
        'media_stream': 2,
        'media_stream_mic': 2,
        'media_stream_camera': 2,
        'durable_storage': 2,
        'plugins': 2,
        'popups': 2,
        'site_engagement': 2,
        'midi_sysex': 2,
        'mouselock': 2,
        'geolocation': 2,
    }
)

driver = webdriver.Chrome(options=chrome_options)

如何完全禁用字体下载并防止Chrome助手弹出窗口出现?