Detached Scope Attribute
Based on the specifications, an itemscope attribute must be present for the following elements: itemid, itemref, and itemtype.
This message typically indicates a missing itemscope attribute or improperly placed Microdata attribute.
Examples
WARNING decoder/public.html-microdata#DetachedScopeAttribute
Found a scope attribute (itemtype), but a "itemscope" attribute was missing, so it was ignored.
itemtypeCount: 1
WARNING decoder/public.html-microdata#DetachedScopeAttribute
Found a scope attribute (itemid), but a "itemscope" attribute was missing, so it was ignored.
itemidCount: 1
WARNING decoder/public.html-microdata#DetachedScopeAttribute
Found a scope attribute (itemref), but a "itemscope" attribute was missing, so it was ignored.
itemrefCount: 1