Feature Request: Recaptcha verified callback

It would be handy to have an event we can tap into once the recaptcha has been verified. There’s a bug in IOS where if you verify, it scrolls you down to the bottom of the page. It appears to be a focus issue. https://github.com/google/recaptcha/issues/130

If we had a way to tap into the verified callback, we could scroll the page ourselves in JavaScript. It would also be nice to show a “continue” button, or something similar. I know recaptcha can set a callback using data attributes. Even adding data-attributes as an option to the tag would be nice.