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CAPTCHA expiration

Posted: Fri Apr 06, 2007 3:53 pm
by php77
hi
how do web sites, implement expirable CAPTCHA?
that is, you load the page, but if you answer the CAPTCHA not at once, after a while you try and there you recieve a "page expiration" message.

thank you!

Posted: Fri Apr 06, 2007 5:18 pm
by feyd
They likely store when they generated the captcha. If the submission happens within a specific amount of time from that point, they will consider it expired and require a new captcha.