[whatwg] Table integrity and conformance

Lachlan Hunt wrote:
> 
>> scope="" will probably only be allowed for THs. Maybe it should be 
>> REQUIRED for THs that aren't in obvious locations (first row, first 
>> column, or whatever).
> 
> Maybe.  I think the spec should explicitly define how to determine which 
> header cells are associated with each cell.  IIRC, the HTML 4 spec does 
> define an algorithm like that, so maybe it could be improved.

The HTML 4 spec says to use TD for a cell that functions both as data cell
and an header cell. [1] For these cases, it would be necessary to allow
scope on TDs.

[1] http://www.w3.org/TR/html40/struct/tables.html#h-11.4.1

~fantasai