How to disable CSS in Python selenium using ChromeOptions

Question

I try to show the page without CSS to make loading faster, and I have managed to disable images and javascript using the following code:

option = webdriver.ChromeOptions()
prefs = {'profile.default_content_setting_values': {'images': 2, 'javascript': 2}}
option.add_experimental_option('prefs', prefs)
driver = webdriver.Chrome(chrome_options = option)

So, I changed{'profile.default_content_setting_values': {'images': 2, 'javascript': 2}}to {'profile.default_content_setting_values': {'css': 2}, and thought it would disable CSS, but it didn't work.

I have seen many answers for Firefox, now I want to do this in Chrome.

Answer 1

Unfortunately, it is not possible in Chrome.

ChromeDriver disable rendering and CSS

Chrome/chromedriver cannot run headless without some virtual screen like Xserver, and it can't not-render the html and css.

Exhaustive list of all options that are allowed:

profile.default_content_setting_values:

cookies,
images,
javascript,
plugins,
popups,
geolocation,
notifications,
auto_select_certificate,
fullscreen,
mouselock,
mixed_script,
media_stream,
media_stream_mic,
media_stream_camera,
protocol_handlers,
ppapi_broker,
automatic_downloads,
midi_sysex,
push_messaging,
ssl_cert_decisions,
metro_switch_to_desktop,
protected_media_identifier,
app_banner,
site_engagement,
durable_storage

Answer 2

To show the page without CSS, to make page loading faster you can disable the Preferences used for storing the default values for the individual content settings using the following solution:

• Code Block:

  from selenium import webdriver
  
  options = webdriver.ChromeOptions()
  prefs = {'profile.default_content_setting_values': {'cookies': 2, 'images': 2, 'javascript': 2, 
                              'plugins': 2, 'popups': 2, 'geolocation': 2, 
                              'notifications': 2, 'auto_select_certificate': 2, 'fullscreen': 2, 
                              'mouselock': 2, 'mixed_script': 2, 'media_stream': 2, 
                              'media_stream_mic': 2, 'media_stream_camera': 2, 'protocol_handlers': 2, 
                              'ppapi_broker': 2, 'automatic_downloads': 2, 'midi_sysex': 2, 
                              'push_messaging': 2, 'ssl_cert_decisions': 2, 'metro_switch_to_desktop': 2, 
                              'protected_media_identifier': 2, 'app_banner': 2, 'site_engagement': 2, 
                              'durable_storage': 2}}
  options.add_experimental_option('prefs', prefs)
  options.add_argument("start-maximized")
  options.add_argument("disable-infobars")
  options.add_argument("--disable-extensions")
  driver = webdriver.Chrome(chrome_options=options, executable_path=r'C:\Utility\BrowserDrivers\chromedriver.exe')
  driver.get('https://play.google.com/store')
  

• Browser Snapshot: