Selenium Headless Browser Detection on Brotector Test Site

[alpgul]

Problem Overview

When attempting to access "https://kaliiiiiiiiii.github.io/brotector/?crash=false" using SeleniumBase with headless mode and various anti-detection settings, the website successfully detects:

• Headless browser
• User-agent override

Reproduction Steps

1. Use SeleniumBase with the following configuration:

   • Headless mode enabled
   • Undetected Chrome mode (uc=True)
   • Test mode
   • Maximize window
   • Incognito mode
   • Do not track enabled
   • Ad block enabled

2. Code used for testing:

from seleniumbase import SB

with SB(uc=True, headless2=True, test=True, maximize=True, incognito=True, do_not_track=True, ad_block=True) as sb:
    url = "https://kaliiiiiiiiii.github.io/brotector/?crash=false"
    sb.activate_cdp_mode(url)
    sb.cdp.flash("Test Results")
    sb.sleep(0.5)
    sb.cdp.save_screenshot("bscan.png")

[mdmintz]

This is all you need:

from seleniumbase import SB

with SB(uc=True, test=True) as sb:
    url = "https://kaliiiiiiiiii.github.io/brotector/?crash=false"
    sb.activate_cdp_mode(url)
    sb.cdp.gui_click_element("button")
    sb.sleep(2)

Note that you don't need headless mode on Linux because there's xvfb=True, which lets you run regular Chrome on a machine that has no display. And you can use PyAutoGUI actions too.

[alpgul]

Is there no way to prevent user agent detection in headless mode? I'm testing on windows

[mdmintz]

If you don't want to see the browser, you can move the window position off-screen:
sb.set_window_position(5000, 5000)

Eg.

from seleniumbase import SB

with SB(uc=True, test=True) as sb:
    sb.set_window_position(5000, 5000)
    url = "https://kaliiiiiiiiii.github.io/brotector/?crash=false"
    sb.activate_cdp_mode(url)
    sb.sleep(2)

Although note that if you want to perform PyAutoGUI actions, the window must be visible and on-screen.