ADR-006: Dexie, Cache API, no referrer

Status: Accepted

Decision: Dexie (IndexedDB) is the one source of truth for entity data. The Cache API holds media bytes, keyed by the stable media ID rather than the signed URL. Gopher sends no referrer with a media request, which prevents HTTP 403 from Patreon’s content-delivery network.

Why: IndexedDB copies a large object each time you read or write it, and the Cache API is made for the bytes of a response. The media servers of Patreon also examine the Referer header or a short-lived signed URL.

Read media, CDN, and CSP.