2.1.38 [W3C-HTML51] Section 4.7.16 The area element

V0126: For the rectangle state, fewer than four integers can be provided

The specification states:

 ... The area element
     ...
     In the rectangle state, area elements must have a coords attribute with exactly four 
     integers, the first of which must be less than the third, and the second of which 
     must be less than the fourth. The four points must represent, respectively, the 
     distance from the left edge of the image to the left side of the rectangle, the 
     distance from the top edge to the top side, the distance from the left edge to the 
     right side, and the distance from the top edge to the bottom side, all in CSS pixels.

EdgeHTML Mode

For the rectangle state, fewer than four integers can be provided. If so, the missing integers are taken to be 0.

V0125: For the polygon state, fewer than 6 integers can be provided

The specification states:

 ... The area element
     ...
     In the polygon state, area elements must have a coords attribute with at least six 
     integers, and the number of integers must be even. Each pair of integers must 
     represent a coordinate given as the distances from the left and the top of the image 
     in CSS pixels respectively, and all the coordinates together must represent the 
     points of the polygon, in order.

EdgeHTML Mode

For the polygon state, fewer than 6 integers can be provided. If so, the missing integers are taken to be 0.

V0124: If the radius is negative, the absolute value is used

The specification states:

 ... The area element
     ...
     In the circle state, area elements must have a coords attribute present, with three 
     integers, the last of which must be non-negative. The first integer must be the 
     distance in CSS pixels from the left edge of the image to the center of the circle, 
     the second integer must be the distance in CSS pixels from the top edge of the image 
     to the center of the circle, and the third integer must be the radius of the circle, 
     again in CSS pixels.

EdgeHTML Mode

If the radius is negative, the absolute value is used.

V0123: The "default" keyword is not supported for the shape attribute

The specification states:

 ... The area element
     ...
     The shape attribute is an enumerated attribute. The following table lists the 
     keywords defined for this attribute. The states given in the first cell of the rows 
     with keywords give the states to which those keywords map. Some of the keywords are 
     non-conforming, as noted in the last column.
  
         State           | Keywords  | Notes
         ----------------------------------------
         Circle state    | circle    |
                         | circ      | Non-conforming
         Default state   | default   |
         Polygon state   | poly      |
                         | polygon   | Non-conforming
         Rectangle state | rect      |
                         | rectangle | Non-conforming

EdgeHTML Mode

The "default" keyword is not supported for the shape attribute.

V0120: The hreflang attribute is not supported

The specification states:

 ... The area element
     ...
     DOM interface:
         
         interface HTMLAreaElement : HTMLElement {
             ...
             attribute DOMString hreflang;
             ...
         };

EdgeHTML Mode

The hreflang attribute is not supported.

V0121: The type attribute is not supported

The specification states:

 ... The area element
     ...
     DOM interface:
         
         interface HTMLAreaElement : HTMLElement {
             ...
             attribute DOMString type;
             ...
         };

EdgeHTML Mode

The type attribute is not supported.