Recaptcha server validation is not getting verified in Google

[crstn-aiw]

Hi,

We are getting some verification issues on our CKAN website. The contact form is working and reCaptcha seem to return tokens each time as I can see a response changing every time and the contact form is submitted and email is received.

However, our user got spam emails and when checking on our google recaptcha admin console, we are getting this message: "We detected that your site is not verifying reCAPTCHA solutions. This is required for the proper use of reCAPTCHA on your site. Please see our developer site for more information".

I try to troubleshoot and check the code as per google support docu but when checking it, I can see there is client side and server side code checks existing...
CKAN 2.9.11 captcha.py
CKAN contact 2.4.3 recaptcha.py

I also found this open issue in CKAN base code - it looks like there is some version issue there too?
ckan/ideas#271

Based on this thread, it doesn't look like the recaptcha v3 is supported in the CKAN base? Would that cause conflict to the contact extension since it is using v3?

Any insight to this would be appreciated.

Our website implemented CKAN 2.9.11 and uses an extension for contact page.

Thank you,
Tina