- From: Gregg Vanderheiden <gv@trace.wisc.edu>
- Date: Thu, 18 Sep 2003 21:03:36 -0500
- To: w3c-wai-gl@w3.org
- Message-id: <001201c37e52$3c9372a0$086fa8c0@USD320002X>
How to handle Advertisements The following was the result of discussions on today's teleconference call. The suggestion was that sites be allowed to claim conformance even if advertisements did not conform as long as the advertisements did not block access to the rest of the content. Ways that ads could block access to the rest of the content included: 1. causing seizures 2. distraction 3. flashing screen reader readable text which might grab focus of screen readers 4. pop ups 5. advertisements which either steal or keep keyboard focus 6. ads which make a page refresh periodically and thus caused screen readers to reset. It was commented that all but the seizure part might be okay if it was only temporary. That is, it only continued for a short period of time and then stopped automatically - or - if it was easy for the user to stop it. That is, the behavior only persists for N seconds after the person first enters the page (where N is two or three seconds or so but probably not as long as 8 or 10). It was also felt that if the user agent could prevent or turn off any of these behaviors then there would not be a need for the author to do that. It would still be recommended that the authors not do it, but it wouldn't be a requirement. The definition of distraction has to be crafted very carefully since static bright letters might be distracting. In this case it really means distraction via movement etc. It was also pointed out that the purpose of advertisements is to distract.
Received on Thursday, 18 September 2003 22:03:40 UTC