Operator-flagged 2026-05-27: subscribestar source check aborted with
`AbortExtraction: HTTP redirect to .../age_confirmation_warning`. The
captured `_personalization_id` cookie in the browser-stored file had
expired (annual rotation), and the user could not realistically refresh
it: SubscribeStar's frontend JS uses localStorage to suppress the
age-confirmation popup once dismissed, so a logged-in revisit doesn't
re-show the popup and the server-side cookie is never re-issued.
gallery-dl's own login flow (which FC doesn't exercise — cookies come
from the extension instead) sidesteps this by manually setting
`18_plus_agreement_generic=true` on `.subscribestar.adult`. The server
accepts that as the age-confirmation marker.
`credential_service._augment_cookies(platform, netscape)` mirrors that
behavior: when the materialized cookies file is for subscribestar and
the age cookie isn't already present, append a synthetic line for
`.subscribestar.adult` with name=`18_plus_agreement_generic` value=`true`
and a far-future expiry. No-op for other platforms; no-op if the cookie
is already present (idempotent for manual pastes / extension captures
that happen to include it).
Three new tests pin: (a) injection fires for subscribestar, preserves
existing cookies; (b) idempotent when already present (no double
injection); (c) does NOT fire for non-subscribestar platforms (Patreon
etc. don't get a foreign-domain cookie).
Not a curator handling bug per se — the extension faithfully captured
what the browser had. This is mirroring a documented gallery-dl
workaround so the cookies-via-extension auth path doesn't degrade as the
server-side cookie expires.
bvandeusen
8243740a04