How and Why does Yandex calculate requests with nodejs?

Question

Node.js

In general, I make a request from nodejs to Yandex. Parse Yandex for a long time, but last week something went wrong.

Here is my code:


* removed the url and cookies on the screen.

I tried a lot on nodejs, different options, took fresh cookies from the browser, all headers from the browser, different libraries for requests. Everything works in the browser, and through nodejs it issues a captcha ...
I tried to make the same request through python, I get the desired content without blocking.
I have all the logic on nodejs and would not like to do a proxy server on python ...

Questions:
How does Yandex calculate requests made through nodejs?
Nodejs somehow marks requests made via http(s).request?