CDP模式下SeleniumBase触发WEBDRIVER指纹检测失败如何解决？

问题 #

使用SeleniumBase的CDP模式访问https://antoinevastel.com/bots/时，WEBDRIVER检测项显示红色（未通过），该如何解决？

示例代码：

from seleniumbase import SB
    
with SB(uc=True, locale_code="en", headless=True) as sb:

link = "https://antoinevastel.com/bots/"

print(f"\nOpening {link}")

sb.wait_for_ready_state_complete(timeout=120)

sb.activate_cdp_mode(link)

print(f"Sleeping for some time...")
sb.sleep(5)

[screenwidth,screenheight,innerwidth,innerheight,scrollwidth,scrollheight] = sb.cdp.evaluate("return [window.screen.width, window.screen.height, window.innerWidth, window.innerHeight, document.documentElement.scrollWidth, document.documentElement.scrollHeight];")

print(f"Size: {screenwidth}, {screenheight}, {innerwidth}, {innerheight}, {scrollwidth}, {scrollheight}")

sb.cdp.set_window_rect(0,0,scrollwidth + screenwidth - innerwidth, scrollheight + screenheight - innerheight + 100)

print(f"Sleeping for some time...")
sb.sleep(5)

sb.cdp.save_screenshot(f"screenshot.png")

print(f"Finished!")

编辑补充：在SeleniumBase项目的Issue#3059中提到，该检测结果与常规Chrome浏览器一致，WEBDriver值不一致的检测并不准确。

解决方案 #

• 调整CDP模式激活时机：原代码先加载页面再切换CDP模式，会导致页面初始化时暴露特征。应先激活CDP模式，再注入防检测脚本，最后打开目标链接。
• 手动覆盖navigator.webdriver属性：通过CDP指令在页面加载前注入脚本，修改该属性的返回值，绕过检测。
• 使用内置窗口调整方法：避免直接调用cdp.set_window_rect，改用SeleniumBase内置的set_window_size方法，减少异常特征触发。

修改后的完整代码 #

from seleniumbase import SB
    
with SB(uc=True, locale_code="en", headless=True) as sb:
    link = "https://antoinevastel.com/bots/"
    print(f"\nOpening {link}")
    
    # 先激活CDP模式并注入防检测脚本
    sb.activate_cdp_mode()
    sb.cdp.execute_cdp_cmd("Page.addScriptToEvaluateOnNewDocument", {
      "source": """
        Object.defineProperty(navigator, 'webdriver', {
          get: () => undefined
        })
      """
    })
    
    sb.open(link)
    sb.wait_for_ready_state_complete(timeout=120)
    
    print(f"Sleeping for some time...")
    sb.sleep(5)
    
    size_data = sb.cdp.evaluate("return [window.screen.width, window.screen.height, window.innerWidth, window.innerHeight, document.documentElement.scrollWidth, document.documentElement.scrollHeight];")
    screenwidth, screenheight, innerwidth, innerheight, scrollwidth, scrollheight = size_data
    print(f"Size: {screenwidth}, {screenheight}, {innerwidth}, {innerheight}, {scrollwidth}, {scrollheight}")
    
    # 使用内置方法设置窗口大小
    sb.set_window_size(scrollwidth + screenwidth - innerwidth, scrollheight + screenheight - innerheight + 100)
    
    print(f"Sleeping for some time...")
    sb.sleep(5)
    
    sb.cdp.save_screenshot(f"screenshot.png")
    print(f"Finished!")

额外说明 #

根据Issue#3059的信息，该检测本身存在准确性问题，即使修改后仍可能显示红色，但此时浏览器环境已与常规Chrome一致，不会被实际的反爬机制拦截。

内容的提问来源于stack exchange，提问作者sudoExclamationExclamation