_ck_, yes, currently the plugin doesn’t handle errors if recaptcha.net is down. It’s not difficult to add, though, and I’ll do it later. However, I’m not sure what’s better: just stop registrations for the period of recaptcha.net downtime, or allow registrations without captcha (and get spammed)? Maybe even fall back to your math solution?
johnhiler: It should work with 0.9. It won’t work with some rare strange (perhaps, Windows-based) PHP configurations with 0.9 and earlier that have empty PHP_SELF variable.
Thanks! Commited and tagged.
