!foo elements count: 0

!doctype elements count: 0

!foo with id "foo": null

!doctype with id "doctype": null

!foo div child count: 2

child 1 -- nodeName: #comment nodeValue: foo id="foo"

child 2 -- nodeName: #comment nodeValue: !foo

!doctype div child count: 1

child 1 -- nodeName: #comment nodeValue: !doctype