Captcha click emulation in chrome extensions, how?

Question

reCAPTCHA

In general, I wrote an extension that automates the work of one site in everything except solving captcha. It remains only to somehow solve the captcha (recaptcha2 with 3x3 images), now it is done manually. Is it possible to emulate clicking the checkbox "I'm not a robot" and choosing pictures in the solved captcha? Now the problem of clicking on the button programmatically is that the iframe of the captcha is located on a different domain (Google servers), which is why it does not allow you to do anything with it) But while iMacros works, it is also an extension for chrome and easily clicks on "I don't robot"?

Answer 1

But then how does iMacros work, is it also a chrome extension and easily clicks on "I'm not a robot"?

Take it apart and see.