web / privacy / browser storage
Separate temporary processing from values written to localStorage or IndexedDB, then check reload and clear behavior. This fixed-case guide does not store anything itself.
A statement that data is “saved” does not identify the storage location or clear action. Record implementation and browser evidence separately.
| Case | Storage | After reload | Clear boundary | Decision |
|---|---|---|---|---|
| preview | temporary in-memory | Expected to disappear | Close tab or reload | reviewed |
| preference | localStorage | Survives | Site-specific clear or browser settings | reviewed |
| offline-cache | IndexedDB | Survives | App-specific clear or browser settings | reviewed |
| unknown | unknown | unknown | unknown | review required |
review required is neither a safety guarantee nor proof that nothing is stored. Stop the decision when evidence is missing.
This guide does not fetch a real site, write browser storage, or send input externally. Fixed cases cannot replace checking the target route's code, reload behavior, and clear action.
Storage and external sending are separate questions. Do not infer external sending from localStorage or IndexedDB alone.