view code return

Ejemplo de Cabecera de Requerimiento:

host oed.usal.es
accept-encoding x-gzip, gzip, deflate
user-agent CCBot/2.0 (http://commoncrawl.org/faq/)
accept text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
if-modified-since Wed, 20 Sep 2017 09:26:30 GMT