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PWA: Offline behavior

Goal and result

Section titled “Goal and result”

Understand cached shell behavior, deep links, and the limits of offline data.

Applies to

Section titled “Applies to”

DiscVault v26 has limited offline PWA behavior in both channels. Cached screens may open, but server-backed writes, fresh searches, authentication, and synchronization require connectivity.

DiscVault v26 stable

Section titled “DiscVault v26 stable”
  • DiscVault v26 stable · ghcr.io/helmerznl/discvault:latest
  • cached screens may open, but fresh data and writes require a network connection · Service Worker · CacheStorage

DiscVault v26 beta

Section titled “DiscVault v26 beta”
  • DiscVault v26 beta · ghcr.io/helmerznl/discvault:beta
  • cached screens may open, but fresh data and writes require a network connection · Service Worker · CacheStorage

Prerequisites

Section titled “Prerequisites”
  • installed PWA
  • one successful online load

Procedure

Section titled “Procedure”
  1. Open: Library → Search · while online
  2. Test: airplane mode · Service Worker
  3. Record: available cached screen · blocked server-backed action
  4. Reconnect: network · reload · current server data

Expected result

Section titled “Expected result”

Previously loaded shell content may open offline; after reconnection a reload shows current server data.

  • cached screens may open, but fresh data and writes require a network connection
  • Service Worker · navigator.onLine

Safety and rollback

Section titled “Safety and rollback”

Next step

Section titled “Next step”

Troubleshooting

Source and status

Section titled “Source and status”