There's a new UC Mode video showing how it works

[mdmintz]

There's a new UC Mode video showing how it works, and how it fixes bugs with undetected-chromedriver:
https://www.youtube.com/watch?v=5dMFI3e85ig

Note the improvements made:

• Driver version-detection & management.
• Allowing mismatched browser/driver versions.
• Automatically changing the user agent to prevent detection. (HeadlessChrome to Chrome)
• Automatically disconnecting chromedriver from Chrome as needed. (And reconnecting)
• Multithreading tests in parallel via pytest-xdist.
• Adjusting configuration based on the environment. (Linux/Ubuntu vs Windows vs macOS)
• Explaining how to set a custom user-data-dir correctly.
• Has options for setting proxy and proxy-with-auth.

Many of these fixes can be back-ported easily to undetected-chromedriver. (Explanation in the video of how to do that, such as using requests.get(url) before navigating to a URL to know if you need to disconnect/reconnect the driver from Chrome.)

Here's a script with retries and a captcha-click failsafe for bypassing detection:

from seleniumbase import SB

with SB(uc=True) as sb:
    sb.driver.get("https://nowsecure.nl/#relax")
    sb.sleep(1)
    if not sb.is_text_visible("OH YEAH, you passed!", "h1"):
        sb.get_new_driver(undetectable=True)
        sb.driver.get("https://nowsecure.nl/#relax")
        sb.sleep(1)
    if not sb.is_text_visible("OH YEAH, you passed!", "h1"):
        if sb.is_element_visible('iframe[src*="challenge"]'):
            with sb.frame_switch('iframe[src*="challenge"]'):
                sb.click("span.mark")
                sb.sleep(2)
    sb.activate_demo_mode()
    sb.assert_text("OH YEAH, you passed!", "h1", timeout=3)

The presentation slides were autogenerated by running: https://github.com/seleniumbase/SeleniumBase/blob/master/examples/presenter/uc_presentation.py

Here are some existing examples that use --uc mode:

• https://github.com/seleniumbase/SeleniumBase/blob/master/examples/verify_undetected.py
• https://github.com/seleniumbase/SeleniumBase/blob/master/examples/uc_cdp_events.py
• https://github.com/seleniumbase/SeleniumBase/blob/master/examples/raw_uc_mode.py

[idan1109]

hi @mdmintz .
I tried this code but on windows 11 using your latest version, doesnt seem to work. I never pass the check! What i'm missing?
i also tried to add the headless=True flag but the browser is still opening.
tried to uninstall my previous selenium version also didnt fix the problem

[mdmintz]

@idan1109 Show me the code you used. And the output of pip list. selenium is part of seleniumbase dependencies, so if you installed it correctly, it would automatically update the selenium version to the required one during install.

[wuvei]

Hi @mdmintz , I executed the code you presented above and did not pass the check. It stops after clicking the 'verify' checkbox. The version is selenium==4.14.0 seleniumbase==4.20.8. I used Chrome 119.0.6045.105 in Docker with xvfb-run.

[mdmintz]

@yczheng0 Thanks for catching that and providing details to reproduce the issue! It was a regression in version 4.20.8.
Upgrade to 4.20.9 - https://github.com/seleniumbase/SeleniumBase/releases/tag/v4.20.9 for the fixed version!

[wuvei]

Thanks @mdmintz for your great work! It works.

[wuvei]

Hi @mdmintz , sorry to bother again. When the code executes to click the verify checkbox, the page will be kept in a captcha loop, i.e. always requiring clicking the checkbox. Same problem mentioned in undetected-chromedriver/#1543.

[mdmintz]

Hi @yczheng0, Assuming everything is installed correctly and you have UC Mode activated, it shouldn't be forcing you to click the checkbox at all. There are bonus methods that you can use to help:

driver.uc_open(url)
driver.uc_open_with_tab(url)
driver.uc_open_with_reconnect(url, reconnect_time=None)
driver.uc_click(selector)

(As talked about in https://www.youtube.com/watch?v=5dMFI3e85ig)

[sujaykhandekar]

@yczheng0 is correct. I also did try with all the four methods mentioned by you above. Also both the methods in youtube video including using sb context. But i think it still does get detected at "https://nowsecure.nl/" by cloudfare. It won't go past clicking on the checkbox.

[mdmintz]

@yczheng0 Which example are you running? SeleniumBase/examples/verify_undetected.py is working for me.