The service worker did Web Push and nothing else, with a note that a cache
serving yesterday's data was worse than an honest "cannot connect". This adds a
cache that does not do that: network-first for everything that can go stale, so a
reader online always gets the live answer and the cache is reached only when the
network cannot answer. The task and note lists stay live; they just no longer go
blank the moment the signal does — a reload through a tunnel, a lift or a
base-station handover comes back to the app instead of the browser's offline page.
Writes are untouched and still go straight to the network; api.js already retries
them across the same short drop. The shell cache is versioned so a deploy lands in
a fresh cache and the old one is dropped on activate; the data cache is cleared on
sign-out so the next person on the browser does not inherit it.
The old hand-registered /sw.js becomes SvelteKit's src/service-worker.js, which it
registers itself, and the push handlers move across unchanged.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
A save made while the connection blips for a few seconds is retried rather
than reverted: the request layer keeps trying a network failure for a
fifteen-second window, waking the instant the OS reports a link again, and
only falls back to the existing error path if the drop outlasts it. A quiet
"reconnecting" pill appears if the wait passes about a second, and leaves
the moment it heals — so a two-second blip is felt as nothing at all.
This is deliberately not offline mode: the app is a live view of a shared
list, so there is no cache to work in with no server and no write log to
reconcile. It is only the blip, ridden out. A server error (4xx/5xx) is the
server answering and is not retried; an aborted request (a superseded
search) is left to propagate.
Kristian: an offline function for when the net drops for short periods,
seconds. Shared items stay server-authoritative — nothing is edited against
a stale copy for longer than the blip.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
