2.1.6 [WAI-ARIA1.0] Section 6.5.4, Relationship Attributes


The specification states:

 This section lists attributes that indicate relationships or associations between elements
 which cannot be readily determined from the document structure.
   • aria-activedescendant
   • aria-controls
   • aria-describedby
   • aria-flowto
   • aria-labelledby
   • aria-owns
   • aria-posinset
   • aria-setsize

IE10 Mode and IE11 Mode (All Versions)

aria-describedby, aria-labelledby, aria-flowto, and aria-owns are not supported when the referenced object is not accessible.