Description

Southwest.com opens normally in CloakBrowser Pro, but the login flow is highly inconsistent.

I am testing with clean residential proxies. Out of around 100 login attempts into my own Southwest account, only about 10 attempts succeeded. In most other attempts, Southwest returned 403 Forbidden.

The same account is still able to log in from my regular/native browser.

Site

https://www.southwest.com/

What happens

1. Open Southwest.com
2. Go to the login flow
3. Submit valid credentials for my own account
4. Most attempts return 403 Forbidden
5. A small number of attempts succeed

Expected behavior

Login should behave closer to a normal/native browser session when using the same account and clean residential proxy quality.

Actual behavior

Approximately 90% of attempts fail with 403 Forbidden.

Environment

• CloakBrowser wrapper version: 0.4.3
• CloakBrowser tier: Pro
• Pro Chromium version: 148.0.7778.215.2
• Platform: Windows x64
• Wrapper: Python
• Proxy type: clean residential proxies
• Headless: false

Launch options

from cloakbrowser import launch

browser = launch(
    headless=False,
    proxy="RESIDENTIAL_PROXY_REDACTED",
    humanize=True,
    human_preset="careful",
    args=[
        "--fingerprint=47291",
        # I can also test recommended flags if needed
    ],
)

page = browser.new_page()
page.goto("https://www.southwest.com/")