Cloudflare detects non-browser requests, and returns captcha.

[XpaiDeR]

Using a proxy to send request to a uam site, returns a captcha, but using the same proxy through firefox or any other browser works just fine, and UAM challenge is being solved by the browser, without getting captcha page

[asci1]

Yes you are right have the same problem.

[thefirst100yearsaredifficult]

Same issue

[N0ise1337]

Same here (only on last cloudscraper release, tried 4.5.0 and worked fine but doesnt bypass all uam's) (ofc doesnt bypass new uam challenge)

[boritopalito]

I do have the same problem.