HTML 5 conformance: table border obsolete?

Some time early this year the validator has started to give an error 
message when encountering:

   <table border="1">.

This is explicitly allowed  in HTML5 [1].

Example: one of our PR documents, RDF Semantics [2], was pubrules-happy 
early Jan, but now produces these errors.

BTW: validator.nu is happy with the document.

Is this a validator bug? Or am I missing something?

Thanks,
Guus Schreiber
RDF WG co-chair

[1] 
http://www.w3.org/html/wg/drafts/html/CR/tabular-data.html#the-table-element
[2] http://www.w3.org/TR/2014/PR-rdf11-mt-20140109/

Received on Wednesday, 5 February 2014 22:32:24 UTC