www.recaptcha.net not working

[javaone199]

reCaptcha

<script src="https://www.google.com/recaptcha/api.js" async defer></script>

Working fine. But changing domain www.google.com to www.recaptcha.net not working:

recaptcha FAQ:

Can I use reCAPTCHA globally?
Yes, please use "www.recaptcha.net" in your code in circumstances when "www.google.com" is not accessible.

First, replace <script src="https://www.google.com/recaptcha/api.js" async defer></script> with <script src="https://www.recaptcha.net/recaptcha/api.js" async defer></script>
After that, apply the same to everywhere else that uses "www.google.com/recaptcha/" on your site.

Error message:

Could not connect to the reCAPTCHA service.

Please check your internet connection and reload to get a reCAPTCHA challenge

no problem accessing js from browser:

https://www.recaptcha.net/recaptcha/api.js