A registered service worker is a URL-shaped artifact (origin+path of
the worker script), so it goes in tracker_resources as a new
SERVICE_WORKER resource type. A Cache Storage bucket is an opaque
named string with no URL, so it goes in detected_trackers as a new
CACHE_STORAGE tracker type.
Frontend:
- StorageDetector wraps caches.open() and enumerates caches.keys()
on start to surface pre-existing buckets that pre-date the SDK
load (service workers commonly populate caches eagerly on
install).
- ThirdPartyDetector wraps navigator.serviceWorker.register() and
enumerates getRegistrations() on start.
Both wrappers degrade silently on insecure contexts where these APIs
are unavailable.
Signed-off-by: Émile Ré <emile@getprobo.com>
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