_:vb52756	<http://www.w3.org/2006/http#fieldValue>	_:vb52757 .
_:vb52757	<http://www.w3.org/2006/http#elementName>	"frame-ancestors" .
_:vb52756	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2006/http#MessageHeader> .
_:vb52756	<http://www.w3.org/2006/http#fieldName>	<http://www.w3.org/2006/http-header#content-security-policy> .
_:vb52757	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2006/http#HeaderElement> .