A Nightscout self-host on host networking with
NIGHTSCOUT_PRIVATE_ORIGINS=http://localhost:1337 worked before and must
keep working unchanged; an operator who lists an exact loopback origin
with its port has made the same deliberate decision as one who lists a
LAN origin. The never-grantable floor is now the unspecified address,
link-local and the metadata endpoint only. Loopback (127/8, ::1,
localhost) is grantable when listed exactly, still resolved and pinned
at connect time with redirects forbidden, and still refused when not
listed.
::1 is answered before the embedded-IPv4 unwrap, which read it as the
IPv4-compatible spelling of 0.0.0.1 and refused it as unspecified. The
pinned Nightscout transport test runs the real floor again. Each refused
range keeps its own test; loopback moves to the grantable-when-listed
set with a test that an unlisted loopback is still refused, and a
Nightscout grant of http://localhost:1337 is asserted to parse.
Refs #947
The mark named its action unconditionally, so a job that had already
named its own (the low-stock underflow branch) or a settings route
whose test then failed at the relay lost that name on the wide event.
Set the action only when the event has none, and always land the
channel and origin meta pair, through a small hasAction() on the
builder. Note the parse-time floor on the Nightscout page, which shares
the grammar.
Refs #947
Marc-André Bombeck