- From: Gez Lemon <gez.lemon@gmail.com>
- Date: Mon, 16 Jul 2007 19:00:39 +0100
- To: "Ben Maurer" <bmaurer@andrew.cmu.edu>
- Cc: "Al Gilman" <Alfred.S.Gilman@ieee.org>, wai-xtech@w3.org, "Colin McMillen" <mcmillen@cs.cmu.edu>
Hi Ben, On 16/07/07, Ben Maurer <bmaurer@andrew.cmu.edu> wrote: <quote> Well, if they disable images, they're screwed with CAPTCHAs anyways -- they won't be able to see the images. A blind, dialup user trying to save bandwidth would still be able to use the CAPTCHA because they'd see the psudo-alt text. </quote> Not at all. Presumably, the CAPTCHA won't have alt text, or any robot would be able to answer it. People who deliberately disable all images can enable any image they like, providing they know it's there - so would choose to display the CAPTCHA image to solve it. The technique you described used CSS for a functional link ("get a new challenge"). If the text is moved off the screen and replaced with an image, someone with CSS enabled but images disabled would have no idea that there was text there that has been removed. You asked if there were any issues with that approach, and that is an issue. Gez -- _____________________________ Supplement your vitamins http://juicystudio.com
Received on Monday, 16 July 2007 18:00:45 UTC