Crawl keys, the rendered comparison and the link graph use the decoded
path (classes.PathKey), the form the resolver, the descriptors and the
SEO entries use; the request URL is percent-encoded again
(classes.EscapeKeyPath). A non-ASCII address now matches its CMS record
and its stored links. A path that does not decode to text keeps its
encoded form.
Fetcher.Allowed and Key, the rendered comparison and the Chrome request
guard accept an address only on the site's effective port (explicit,
else 443 for https and 80 for http), so page code cannot make headless
Chrome reach other services on the site host's address and a link to
another port is not reported as a page of the site.
