Resolve a link the server handed out (a pagination next link, a Body's list URL,
a redirect Location) against the URL it came from, and decide whether to follow
it. Links stay on the same host: another hostname or port is refused. An http:
link on the same host as an https: page is upgraded to https: — several
servers publish http:// ids while serving https — and a downgrade is never
followed.
Resolve a link the server handed out (a pagination
nextlink, a Body's list URL, a redirectLocation) against the URL it came from, and decide whether to follow it. Links stay on the same host: another hostname or port is refused. Anhttp:link on the same host as anhttps:page is upgraded tohttps:— several servers publishhttp://ids while serving https — and a downgrade is never followed.