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Re: rationale for checkpoint 8.1

From: Nick Kew <nick@webthing.com>
Date: Fri, 1 Mar 2002 03:00:36 +0000 (GMT)
To: "Pedlow, Robert" <Robert.Pedlow@team.telstra.com>
cc: <w3c-wai-ig@w3.org>
Message-ID: <20020301024850.W1852-100000@fenris.webthing.com>

On Fri, 1 Mar 2002, Pedlow, Robert wrote:

> Hi
>    I am seeking advice on the reasons behind WCAG checkpoint 8.1.
> "Ensure that pages are usable when scripts, applets, or other programmatic
> objects are turned off or not supported. If this is not possible, provide
> equivalent information on an alternative accessible page. Make programmatic
> elements such as scripts and applets directly accessible or compatible with
> assistive technologies [Priority 1 if functionality is important and not
> presented elsewhere...]Specifically they want to use Javascript.

How is Javascript a problem?  There are, and always have been, perfectly
good ways to use Javascript with graceful and accessible fallback.
At worst, just make use of <noscript> where necessary, and if you are
ever tempted to use the evil javascript: pseudo-protocol for forms or
links, change that to a valid destination and use event handlers for
the scripting.

> I am aware that JAWS is able to handle Javascript.
> Are there assistive technologies that cannot interact with Javascript?

Erm - not everyone can afford modern equipment.  Have a thought for those
with an old 386 and 4Mb RAM, using Lynx, perhaps with a speech reader[1].
Perfectly good with well-considered javascript, of course.

Nick Kew

Site Valet - the mark of Quality on the Web.
Received on Thursday, 28 February 2002 22:00:41 UTC

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