2.1.51 [W3C-HTML52] Section 4.10.18.2. Submitting element directionality: the dirname attribute

V0191: The dirname attribute is not supported

The specification states:

 ... Submitting element directionality: the dirname attribute
  
     The dirname attribute on a form control element enables the submission of the 
     directionality of the element, and gives the name of the field that contains this 
     value during form submission. If such an attribute is specified, its value must not 
     be the empty string.

EdgeHTML Mode

The dirname attribute is not supported.