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Re: SC failure for opening new window without prior notice ?

From: Aurélien Levy <aurelien.levy@temesis.com>
Date: Wed, 09 Jul 2014 12:10:32 +0200
Message-ID: <53BD1518.3030703@temesis.com>
To: w3c-wai-gl@w3.org

> Based on F37 alone, we cannot definitively conclude whether 
> target="_blank" without a warning is a failure. It is just not part of 
> *this* failure. In the absence of failure descriptions that 
> specifically mention Aurélien's case, we have only the success 
> criteria to go by. Whether this case fails SC 3.2.2 hinges on the 
> interpretation of "changing the setting of any user interface 
> component": does activating a link constitute a change in a setting? A 
> link is a UI component, but does activating it constitute a change in 
> its setting? (Nothing that you can retrieve from the DOM, as far as I 
> know, unlike certain properties of form fields.) So it seems hard to 
> argue that Aurélien's example fails SC 3.2.2.
>
> However, the code fails SC3.2.5; there is even a failure for this: 
> <http://www.w3.org/TR/2014/NOTE-WCAG20-TECHS-20140408/F22>.
>
> Best regards,
>
> Christophe
I agree with that but it strange because the understanding of 3.2.5 state :

*Change on Request:* Changes of context 
<http://www.w3.org/TR/UNDERSTANDING-WCAG20/consistent-behavior-no-extreme-changes-context.html#context-changedef> 
are initiated only by user request or a mechanism 
<http://www.w3.org/TR/UNDERSTANDING-WCAG20/consistent-behavior-no-extreme-changes-context.html#mechanismdef> 
is available to turn off such changes. (Level AAA)

and we have this /Note: /Clicking on a link is an example of an action 
that is "initiated only by user request."

So nothing ask about prior warning. It may be better to have something 
like :
*Change on Request:* Changes of context 
<http://www.w3.org/TR/UNDERSTANDING-WCAG20/consistent-behavior-no-extreme-changes-context.html#context-changedef> 
are initiated only by user request *with a prior warning* or a mechanism 
<http://www.w3.org/TR/UNDERSTANDING-WCAG20/consistent-behavior-no-extreme-changes-context.html#mechanismdef> 
is available to turn off such changes. (Level AAA)
or
*Change on Request:* Changes of context 
<http://www.w3.org/TR/UNDERSTANDING-WCAG20/consistent-behavior-no-extreme-changes-context.html#context-changedef> 
are initiated only by user request or a mechanism 
<http://www.w3.org/TR/UNDERSTANDING-WCAG20/consistent-behavior-no-extreme-changes-context.html#mechanismdef> 
is available to turn off*, warn the the user *of such changes. (Level AAA)

Regarding SC 2.4.4 I ask the question because there is an example of 
using title to warn the user of opening new windows 
http://www.w3.org/TR/2014/NOTE-WCAG20-TECHS-20140408/H33 so if not 
warning the user is not a failure of SC 2.4.4 maybe it's best to change 
this example as well

Aurélien
Received on Wednesday, 9 July 2014 10:10:55 UTC

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