feat: add memory router mode#2660
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Add a third `routerMode` value, `memory`, backed by vue-router's createMemoryHistory. Routing is kept in memory so the URL never reflects the slide number and cannot be used to navigate — useful for kiosk or externally driven "follower" decks. Export and the PNG build path fall back to history routing since they navigate by URL.
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antfu
approved these changes
Jul 10, 2026
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Summary
Adds a third
routerModevalue —memory— backed by vue-router'screateMemoryHistory. Routing is kept entirely in memory, so:/1,/2, … as the deck advances), and/12is ignored (the deck boots at slide 1).Existing
history(default) andhashbehaviour is unchanged.Why
For kiosk / public "follower" decks — a deck shown on a shared screen or handed out as a public URL that's driven externally (e.g. via a sync addon). Keeping the slide number out of the URL stops viewers from reading their position or jumping ahead by editing the URL. This is URL hygiene, not navigation locking — arrow/click navigation still works; disabling that belongs to the follower layer, not core.
As a bonus it sidesteps the history-mode refresh-404 problem on plain static hosts (there's no path left to 404 on).
Behaviour / limitations
Because memory mode has no URL routing, deep-links,
/presenter,/overview, and export-by-URL aren't reachable in this mode. Export and the PNG/PDF build path therefore fall back tohistoryrouting (they navigate by URL). These are documented in therouterModeJSDoc.Changes
routerModetype accepts'memory'(frontmatter config + build-time override)createMemoryHistoryvia a new__SLIDEV_MEMORY_ROUTE__build flag (gated off during export)--router-modeCLI flag acceptsmemorymemory→historyVerified
pnpm build,pnpm typecheck,pnpm lint, andpnpm testpass. Manually verified in both dev and build: advancing the deck leaves the URL untouched, and a typed/Nboots at slide 1.