pub fn link_header_alternate(headers: &HeaderMap) -> Option<String>Expand description
The target of the first Link header’s rel="alternate" entry of an
ACTIVITY_LINK_TYPES type, as written.
As in Mastodon, only the first Link header is read when there are
several, and application/activity+json is looked for across all its
entries before the JSON-LD spelling: the order of the types decides, not
the order of the links.