2.2.4 [W3C-WAI-ARIA-11] Section 6.6. Definitions of States and Properties (all aria-* attributes)

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C0014: The aria-colcount is not properly set

The specification states:

 6.6 Definitions of States and Properties (all aria-* attributes)
     ...
     aria-colcount (property)
  
     Defines the total number of columns in a table, grid, or treegrid. ... 
     ...
     Authors MUST set the value of aria-colcount to an integer equal to the number of 
     columns in the full table. If the total number of columns is unknown, authors MUST 
     set the value of aria-colcount to -1 to indicate that the value should not be 
     calculated by the user agent.

EdgeHTML Mode

The aria-colcount is 0 and not set to -1.

C0012: The search for the first element with aria-atomic set is done, and all appropriate behavior is applied

The specification states:

 6.6 Definitions of States and Properties (all aria-* attributes)
     ...
     aria-atomic (property)
  
     Indicates whether assistive technologies will present all, or only parts of, the 
     changed region based on the change notifications defined by the aria-relevant 
     attribute.
     ...
     When the content of a live region changes, user agents SHOULD examine the changed 
     element and traverse the ancestors to find the first element with aria-atomic set, 
     and apply the appropriate behavior for the cases below.
  
     1.  If none of the ancestors have explicitly set aria-atomic, the default is that 
         aria-atomic is false, and assistive technologies will only present the changed 
         node to the user.
  
     2.  If aria-atomic is explicitly set to false, assistive technologies will stop 
         searching up the ancestor chain and present only the changed node to the user.
  
     3. If aria-atomic is explicitly set to true, assistive technologies will present the 
        entire contents of the element, including the author-defined live region label if 
        one exists.

EdgeHTML Mode

The changed element is examined and ancestors are traversed to find the first element with aria-atomic set, and all appropriate behavior is applied for the three cases.