Expose epic web_url as URL

ee/lib/ee/api/entities.rb

@@ -294,7 +294,7 @@ module EE
         expose :due_date_is_fixed?, as: :due_date_is_fixed, if: can_admin_epic
         expose :due_date_fixed, :due_date_from_milestones, if: can_admin_epic
         expose :state
-        expose :web_url, as: :web_edit_url, if: can_admin_epic # @deprecated
+        expose :web_edit_url, if: can_admin_epic # @deprecated
         expose :web_url
         expose :reference, if: { with_reference: true } do |epic|
           epic.to_reference(full: true)
@@ -324,6 +324,10 @@ module EE
         end
 
         def web_url
+          ::Gitlab::Routing.url_helpers.group_epic_url(object.group, object)
+        end
+
+        def web_edit_url
           ::Gitlab::Routing.url_helpers.group_epic_path(object.group, object)
         end
       end