html5/spec Overview.html,1.2720,1.2721

Update of /sources/public/html5/spec
In directory hutz:/tmp/cvs-serv29428

Modified Files:
	Overview.html 
Log Message:
Explain why summary= is discouraged now. (whatwg r3523)

Index: Overview.html
===================================================================
RCS file: /sources/public/html5/spec/Overview.html,v
retrieving revision 1.2720
retrieving revision 1.2721
diff -u -d -r1.2720 -r1.2721
--- Overview.html	2 Aug 2009 02:09:50 -0000	1.2720
+++ Overview.html	2 Aug 2009 02:35:15 -0000	1.2721
@@ -64481,7 +64481,17 @@
   providing explanatory text for complex tables for users of screen
   readers. One of the <a href="#table-descriptions">techniques</a>
   described in the <code><a href="#the-table-element">table</a></code> section should be used
-  instead.<p class="XXX">It has been suggested that the summary="" attribute
+  instead.<p class="note">Use of the <code title="attr-table-summary"><a href="#attr-table-summary">summary</a></code> attribute is discouraged
+  because in practice it is poorly understood. Because the attribute
+  is not exposed in visual user agents, authors who have included it
+  have typically not been able to test it, and have therefore set the
+  attribute to values that are of no use to users of accessibility
+  tools. This has lead to accessibility tools introducing heuristics
+  to try to avoid exposing such usage of the attribute to users. Even
+  the few authors who have made the best use of the attribute have
+  often misused it, for example by including text that would in fact
+  be useful for all users, or that is redundant with other information
+  on the page separate from the table.<p class="XXX">It has been suggested that the summary="" attribute
   should not be obsolete, and the working group may vote on the matter
   at some future point.<div class="impl">

Received on Sunday, 2 August 2009 02:35:26 UTC