selenium被反爬出现空白页

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def login(extension_path,tmp_path):     chrome_options = webdriver.ChromeOptions()     # 设置好应用扩展     chrome_options.add_extension(extension_path)            #添加下载路径     prefs = {'profile.default_content_settings.popups': 0, 'download.default_directory':tmp_path,              "profile.default_content_setting_values.automatic_downloads":1}#允许多个文件下载     chrome_options.add_experimental_option('prefs', prefs)       #修改windows.navigator.webdriver，防机器人识别机制，selenium自动登陆判别机制     chrome_options.add_experimental_option('excludeSwitches', ['enable-automation'])     drive = webdriver.Chrome(chrome_options=chrome_options)     #CDP执行JavaScript 代码  重定义windows.navigator.webdriver的值     drive.execute_cdp_cmd("Page.addScriptToEvaluateOnNewDocument", {       "source": """         Object.defineProperty(navigator, 'webdriver', {           get: () => undefined         })       """     })     url = 'https://sycm.taobao.com/portal/home.htm'     drive.implicitly_wait(10)     drive.get(url)     input("请手动登录，成功后输入【1】：")     #叉掉页面无关元素后再输入1继续执行     drive.maximize_window() #窗口最大化     tm=random.uniform(1,2)     time.sleep(tm)     return drive

　　https://blog.csdn.net/qq_35866846/article/details/105712147