Use recaptcha without google.com domain

[grishin]

As google.com domain is blocked in Russia from today all calls to recaptcha fail. We changed all calls to https://www.recaptcha.net domain but it still fails.

I found that https://www.gstatic.com/recaptcha/api2/v1523860362251/recaptcha__en.js internally calls to google.com/recaptcha/ even if it is served from recaptcha.net base url. Diving deeper into code I found some internal (undocumented?) parameter p.__recaptcha_api that possibly changes the base url.

Still I can't understand how should this configuration be passed to internal script. Is there any documentation or examples for using recaptcha in such conditions?

[rowan-m]

Reliability of results and user experience if you're going through a proxy is really out of scope for this repo. I've updated the code to allow for setting of an explicit URL and I'm happy to take PRs that add RequestMethods for better working within a proxy. There's quite a bit of discussion on #87 that may help.

[varunachar]

This is still an issue. There are still requests that go to google.com domain from the script loaded via recaptcha.net. Has a workaround been published somewhere I can take a look? I prefer not to setup a proxy just for this.