The value of an attribute contained something that is not allowed by
the specified syntax for that type of attribute. For instance, the
“selected
” attribute must be
either minimized as “selected
”
or spelled out in full as “selected="selected"
”; the variant
“selected=""
” is not allowed.
![]() | <option value="Wild Dogs" selected="">Wild Dogs</option> |
![]() | <option value="Wild Dogs" selected="selected">Wild Dogs</option> |
Spell the attribute out in full.