Recaptcha validates invalid input as well.
like o->0(zero) and viceversa.
sometimes don't differentiates case.
i can append extra text with input.

i don't have source code, using assembly instead
Running version: v2.0.50727
and version: 1.0.4.0

i can reproduce it IE and FF.
you can test it on "http://www.imaginecup.com/competitions/Digital%20Media/media-gallery".
click on one video you'll get reCAPTCHA there.

Comments

hass’s picture

hass commented
Category: Bug report » Support request
Priority: Critical » Normal
Issue summary: View changes
Status: Active » Fixed

What Google validates as also correct input is not our business. Please file an issue at Google reCAPTCHA team.

Status: Fixed » Closed (fixed)

Automatically closed - issue fixed for 2 weeks with no activity.