Thread:Extension talk:ConfirmEdit/Can't get recaptcha to work on 1.19

I have this in my settings...

require_once("$IP/extensions/ConfirmEdit/ConfirmEdit.php"); require_once("$IP/extensions/ConfirmEdit/ReCaptcha.php"); $wgCaptchaClass = 'ReCaptcha'; $wgReCaptchaPublicKey = 'xxxxxx'; $wgReCaptchaPrivateKey = 'xxxxx';

When I edit a page as a guest, recaptcha doesn't appear to be working. It doesn't ask me to enter any text. What step am I missing?