Python Selenium Undetected Chromedriver doesn't work with auth proxy

I use Undetected Chromedriver to bypass Cloudflare detection.

I trying force it to work with proxy, but unsuccessful.
First attempt (IP just doesn't change):

import undetected_chromedriver as uc
options = uc.ChromeOptions()
...
ip,port,username,password = proxy.split(':')   #proxy in format ip:port:username:password
options.add_argument(f'--proxy-server=http://{username}:{password}@{ip}:{port}')
driver = uc.Chrome(executable_path=ChromeDriverManager().install(), options=options)
driver.get('https://2ip.ru/')

Second attempt (with Selenium-Wire):

from seleniumwire import undetected_chromedriver as uc
...
ip,port,username,password = proxy.split(':')   #proxy in format ip:port:username:password
wire_options = {
        'proxy': {
            'http': f'http://{username}:{password}@{ip}:{port}', 
            'https': f'http://{username}:{password}@{ip}:{port}',
            'no_proxy': 'localhost,127.0.0.1' # excludes
        }  
    }
driver = uc.Chrome(executable_path=ChromeDriverManager().install(), options=options,seleniumwire_options=wire_options)
driver.get('https://2ip.ru/')

Browser trying to connect with proxy, but I need to manually enter password and username.
I will be thanks, if you show me my mistakes or offer another decision of problem.

SeleniumBase has a special undetected-chromedriver mode that lets you set the proxy settings via method arg (or on the command-line).

pip install seleniumbase, then run with python after you fill in the proxy settings on the SB() call:

from seleniumbase import SB

with SB(uc=True, pls="none", proxy="USER:PASS@HOST:PORT") as sb:
    sb.open("https://nowsecure.nl/#relax")
    sb.assert_text("OH YEAH, you passed!", "h1")
    sb.post_message("Selenium wasn't detected!")

It sets uc to True (to enabled undetected-chromedriver mode), it sets pls to "none" (a different pageLoadStrategy might freeze up proxy tests in that mode), and it sets the proxy settings (after you fill in the one you want).

After day of searches on the Internet, I found out that Chrome doesn't support basic proxy authentification. Thank [AbdeLhalimSB][1] for leading me to the [right solution][2]. But this and other similar solutions don't work for me because my browser refuses to load extensions from zip archive. So, I needed to change this code so that browser can load extension from folder.

extension.py:

import os
def proxies(username, password, endpoint, port,path):
    try:
        os.mkdir(path)
    except FileExistsError:
        pass
    manifest_json = """
    {
        "version": "1.0.0",
        "manifest_version": 2,
        "name": "Proxies",
        "permissions": [
            "proxy",
            "tabs",
            "unlimitedStorage",
            "storage",
            "<all_urls>",
            "webRequest",
            "webRequestBlocking"
        ],
        "background": {
            "scripts": ["background.js"]
        },
        "minimum_chrome_version":"22.0.0"
    }
    """

    background_js = """
    var config = {
            mode: "fixed_servers",
            rules: {
            singleProxy: {
                scheme: "http",
                host: "%s",
                port: parseInt(%s)
            },
            bypassList: ["localhost"]
            }
        };

    chrome.proxy.settings.set({value: config, scope: "regular"}, function() {});

    function callbackFn(details) {
        return {
            authCredentials: {
                username: "%s",
                password: "%s"
            }
        };
    }

    chrome.webRequest.onAuthRequired.addListener(
                callbackFn,
                {urls: ["<all_urls>"]},
                ['blocking']
    );
    """ % (endpoint, port, username, password)

    with open(path+"\\manifest.json", 'w') as m_file:
        m_file.write(manifest_json)
    with open(path+"\\background.js", 'w') as b_file:
        b_file.write(background_js)

main.py:

from webdriver_manager.chrome import ChromeDriverManager
import undetected_chromedriver as uc
import os
from extension import proxies
options = uc.ChromeOptions()
script_address = os.getcwd()
...
ip,port,username,password = proxy.split(':')   #proxy in format ip:port:username:password
proxies(username, password, ip, int(port),script_address+'\\Proxies\\'+ip)
options.add_argument('--load-extension='+script_address+'\\Proxies\\'+ip)
driver = uc.Chrome(executable_path=ChromeDriverManager().install(), options=options)

Note, this solution will work in headless mode, but not in incognito mode.
[1]: https://stackoverflow.com/users/20112601/abdelhalimsb
[2]: https://stackoverflow.com/questions/76396403/how-can-i-integrate-proxies-into-my-selenium-web-scraper-for-true-people-search/76400335#76400335