_:vb53510	<http://www.w3.org/2006/http#fieldName>	<http://www.w3.org/2006/http-header#content-security-policy> .
_:vb53511	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2006/http#HeaderElement> .
_:vb53510	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2006/http#MessageHeader> .
_:vb53511	<http://www.w3.org/2006/http#elementName>	"prefetch-src" .
_:vb53510	<http://www.w3.org/2006/http#fieldValue>	_:vb53511 .