Question

My automation script fails after the site switched to a React frontend What scraping alternatives exist

Answer 1

When a site changes its login redirects, old session-handling code often breaks because the authentication flow now depends on 

1. New cookies

2. Csrf tokens

3. Different domain/sub domain

4. OAuth callbacks

5. Stricter cookies policies 

The fix is usually to rebuild the authenticated session flow instead of reusing stale cookies 

Check what your script is actually receiving 

A very common script mistake is your “ download” is actually taking you back to login .
Debug this first 

response = session.get(download_url, allow_redirects=True)

print(response.url)

print(response.status_code)

for r in response.history:

    print(r.status_code, r.url)

If you see 

/login

/auth

/sso/callback

Then the session cookie is probably not being preserved correctly .