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RE: Session timeouts not part of 2.2.1?

From: Christophe Strobbe <christophe.strobbe@esat.kuleuven.be>
Date: Fri, 20 Jan 2006 16:06:35 +0100
Message-Id: <6.0.0.22.2.20060120160058.02a15880@mailserv.esat.kuleuven.be>
To: <w3c-wai-gl@w3.org>


At 19:36 12/01/2006, Michael Cooper wrote:
<blockquote>
(...)
3) I think I understand what is meant by the technique about server-side
redirect. (...)
However, the <meta> element is defined in the
HTML spec <http://www.w3.org/TR/html401/struct/global.html#edef-META> to
provide a "virtual" HTTP header. The "header" that the HTML technique to
create refreshing pages uses is called the "Refresh" header, but
unfortunately I just discovered that this header is not defined in the
HTTP specification <ftp://ftp.isi.edu/in-notes/rfc2616.txt> and as far
as I can tell, never was. Nevertheless, I tried putting that HTTP header
into a Web server on my local machine, and sure enough, recent versions
of Firefox and IE both respected the header and refreshed the page just
as if I had defined it in HTML with a <meta> element.

Given that this is not defined in the spec, I have no idea if it's a
common enough situation for us to write techniques against. But since
the browsers support it, I have to imagine the developers anticipated it
being used. So possibly we'd want to create "HTTP" techniques about this
for the guide doc.
</blockquote>

Based on Michael's message, I've added the "Failure due to using 
server-side techniques to automatically redirect pages after a timeout" 
(with examples for Java Servlets and ASP): 
http://trace.wisc.edu/wcag_wiki/index.php?title=Failure_due_to_using_server-side_techniques_to_automatically_redirect_pages_after_a_timeout.
We may decide to link to it from another success criterion later, but at 
least it is documented now.

Regards,

Christophe Strobbe


-- 
Christophe Strobbe
K.U.Leuven - Departement of Electrical Engineering - Research Group on 
Document Architectures
Kasteelpark Arenberg 10 - 3001 Leuven-Heverlee - BELGIUM
tel: +32 16 32 85 51
http://www.docarch.be/ 


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Received on Friday, 20 January 2006 15:06:45 GMT

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