CAPTCHA expiration

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php77
Forum Newbie
Posts: 11
Joined: Wed Mar 28, 2007 1:12 pm

CAPTCHA expiration

Post 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!
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feyd
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Posts: 31559
Joined: Mon Mar 29, 2004 3:24 pm
Location: Bothell, Washington, USA

Post 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.
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