The service worker derives its cache names from the version injected by
`sw-version.js`, and falls back to a literal compiled into `sw.js` when that
import fails. The prebuild step rewrites both from `package.json`, so both were
correct as long as a release rebuilt. One did not, and the literal trailed the
release by a version while every test stayed green.
Nothing checked it. The generated file is compared against `package.json`, and
the behavioural suite deliberately reads the literal out of the source so its
cache-name assertions cannot drift from the literal they exercise. Reasonable
apart, and together they left the literal itself unverified.
The effect is confined to the degraded path and is still worth closing: a client
that cannot load `sw-version.js` computes the previous release's cache names, so
it keeps serving the old shell and its cleanup treats the current caches as the
stale ones.
Re-anchors the literal and adds the equality as a gate, since it is a question
with an exact answer. A version bump committed without a rebuild now fails
locally instead of shipping.
Marc-André Bombeck
17ea7bea2d