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v0.0.42
6 Commits
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5f6bccbd03 |
feat: track previousNextUrl for intercepted App Router entries (#755)
* docs: refresh stale app browser entry comments * feat: track previousNextUrl for intercepted App Router entries * refactor: bind getBrowserRouterState() once in refresh case Avoid calling getBrowserRouterState() twice in the refresh branch of getRequestState by binding previousNextUrl to a local. Behavior-preserving nit raised in PR review. * refactor: drop dead history-state interception-context read path After previousNextUrl became the source of truth for interception context in history state, nothing in production writes the legacy __vinext_interceptionContext key anymore. The fall-through read in getCurrentInterceptionContext was vestigial and getCurrentInterceptionContext now derives strictly from the current pathname. - Removes the unused VINEXT_INTERCEPTION_CONTEXT_HISTORY_STATE_KEY export - Removes readHistoryStateInterceptionContext - Updates the prefetch-cache unit test to assert the new pathname-derived contract instead of the legacy history-state override * test(e2e): cover back/forward restoration of intercepted modal view Adds the back-then-forward case for App Router intercepting routes: after intercepted navigation from /feed to /photos/42, going back to /feed and then forward should restore the modal (rather than rendering the full /photos/42 page). Directly exercises the previousNextUrl read in the traverse branch of getRequestState. * docs: reword stale 'belongs to PR 5' comments Two inline comments in app-browser-entry.ts referenced "PR 5" as a future PR, but this is PR 5. Reworded to describe the deferred scope as-is: interception context on server-action POSTs and HMR re-renders is intentionally not propagated. * fix: distinguish explicit null from undefined in previousNextUrl fallback --------- Co-authored-by: Claude <noreply@anthropic.com> Co-authored-by: James <james@eli.cx> |
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b8c44fdd52 |
feat: encode interception context in App Router payload IDs and caches (#753)
* test: add E2E verification for layout persistence flat payload pipeline Prove the flat keyed map architecture works end-to-end: - Layout state persists across sibling navigation (counter survives) - Template remounts on segment boundary change, persists within segment - Error boundary clears on navigate-away-and-back - Back/forward preserves layout state through history - Parallel slots persist on soft nav, show default.tsx on hard nav Zero production code changes — test fixtures and Playwright specs only. * test: harden layout persistence hydration assertions * test: address layout-persistence spec gaps * test: tighten not.toBeAttached() assertions for absent elements * chore: trigger CI * feat: encode interception context in App Router payload IDs and caches * test: update App Router entry snapshots for interception encoding * fix: reuse committed interception context for soft navigations * chore: fix formatting in app-browser-entry after rebase * fix: update mounted-slot test helper calls for 4-arg createResolvedElements signature PR 3 added mounted-slot tests using createResolvedElements(routeId, root, extraEntries). PR 4 inserted interceptionContext as the 3rd param, shifting extraEntries to 4th. The object was being swallowed as interceptionContext, causing getMountedSlotIds to return []. Also add missing renderId to the interception context pending-commit test. * chore: document intentional interception context omission in HMR handler Add a comment to the HMR rsc:update handler noting that interception context is intentionally omitted, matching the existing documentation pattern in the server action handler. https://claude.ai/code/session_01EnvJuSwsZS9n862q7Veamo * fix: prefetch cache test now exercises interception-context partitioning The test was passing pre-computed cache keys as the rscUrl parameter to storePrefetchResponse(), which internally calls createAppPayloadCacheKey again. With the default interceptionContext=null the key passed through unchanged, so the test only verified Map key uniqueness rather than the actual partitioning logic. Pass raw RSC URLs with separate interception context parameters instead. Also add a comment clarifying that PendingNavigationCommit's top-level interceptionContext/rootLayoutTreePath/routeId are convenience aliases for the corresponding action fields. https://claude.ai/code/session_01EnvJuSwsZS9n862q7Veamo * fix: strip NUL bytes from interception context request header Defensively remove \0 from the incoming X-Vinext-Interception-Context header to prevent a malicious client from crafting cache keys that contain the internal NUL separator. https://claude.ai/code/session_01EnvJuSwsZS9n862q7Veamo * fix: resolve rebase conflicts in slot preservation tests After rebase onto upstream main, two fixes needed: - Pass extraEntries as 4th arg to createResolvedElements (3rd is now interceptionContext) - Add missing interceptionContext field to test action objects https://claude.ai/code/session_01EnvJuSwsZS9n862q7Veamo * test: update entry template snapshots for NUL-byte header sanitization https://claude.ai/code/session_01EnvJuSwsZS9n862q7Veamo --------- Co-authored-by: Claude <noreply@anthropic.com> |
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ca0d542947 |
Fix parallel slot persistence and cache variants (#811)
* Fix parallel slot persistence and cache variants * Address App Router review follow-ups * Fix generated mounted-slot regex escaping * Address review feedback on slot normalization and cache comments Align generated entry's __normalizeMountedSlotsHeader regex with the typed module in app-elements.ts (both now use /\s+/). Clarify the HTML vs RSC cache asymmetry comment in stale regen path. * Remove redundant .map(trim) and clarify regen slot context split(/\s+/) never produces tokens with leading/trailing whitespace, so .map(trim) was a no-op in both normalizeMountedSlotsHeader and its generated counterpart. Also add a comment clarifying that background regen intentionally inherits the triggering request's slot context. * Clarify regen dedup and prefetch slot-mismatch tradeoffs Add comments explaining that pathname-only regen dedup is intentional (avoids concurrent regen storms across slot variants) and that consumePrefetchResponse unconditionally removes the entry before the slot-mismatch check (simplest correct behavior, prefetch is wasted on mismatch). * Document storePrefetchResponse slot-awareness gap Add JSDoc note that storePrefetchResponse is slot-unaware: the snapshot's mountedSlotsHeader comes from the response headers rather than the caller, so consumePrefetchResponse may reject the entry on slot context mismatch. |
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ef4192db49 |
fix: cross-route client navigation hangs in Firefox (#652) (#690)
* fix: cross-route client navigation hangs in Firefox (#652) Replace flushSync-based RSC tree rendering with a two-phase navigation commit that uses startTransition for same-route navigations and synchronous updates for cross-route navigations. This fixes the Firefox hang where startTransition never commits when the entire component tree is replaced, and also resolves the Suspense double-flash from #639. Key changes: - navigation.ts: ClientNavigationState on Symbol.for global for module instance safety, render snapshot context for hook consistency during transitions, RSC response snapshot/restore for visited cache, unified navigateClientSide() entry point, history suppression helpers - app-browser-entry.ts: BrowserRoot component with useState-managed tree, NavigationCommitSignal that defers URL commit to useLayoutEffect, visited response cache with LRU eviction, navigation ID counter for stale navigation bailout, manual scroll restoration - link.tsx: remove duplicated helpers, delegate to navigateClientSide - form.tsx: delegate App Router GET navigation to navigateClientSide Closes #652 * fix: detect React Flight Thenables in updateBrowserTree and apply params eagerly createFromFetch() returns a Thenable (not instanceof Promise), so the async branch was never taken. The raw unresolved Thenable was set as React children, causing suspension without a Suspense boundary and empty content after cross-route navigations. - Duck-type the .then() check to handle both Promises and Thenables - Replace stageClientParams with applyClientParams so useSyncExternalStore subscribers see correct params immediately - Remove dead stageClientParams function and replaceClientParamsWithoutNotify import Fixes useParams E2E failures in CI (hooks.spec.ts:161, hooks.spec.ts:180). * fix: await createFromFetch before passing RSC payload to tree The Flight Thenable from createFromFetch was passed unresolved to renderNavigationPayload/updateBrowserTree. The .then() callback fired unreliably across consecutive navigations, causing empty content. Await createFromFetch in both navigation paths (cached and fresh) so renderNavigationPayload always receives a resolved ReactNode. Add stale navigation checks after the new await points. The HMR handler and server action handler already awaited correctly. * fix: preserve app router params across cached navigation Preserve the X-Vinext-Params header when snapshotting prefetched and visited RSC responses so cached navigations keep dynamic params intact. Stage client params until the URL commit lands so useParams, history state, and redirect handling stay aligned during App Router transitions. * fix: address review feedback on navigation caching and history management - Remove double history push for RSC navigations: let the commit effect in navigateRsc own push/replace exclusively. Also fixes a hidden bug where the early push broke isSameRoute detection (always true), negating the Firefox cross-route hang fix. - Enforce prefetch cache size limits in prefetchRscResponse() by extracting shared eviction logic from storePrefetchResponse(). - Add TTL check in consumePrefetchResponse() so expired snapshots are discarded instead of served as stale UI. - Prevent navigationSnapshotActiveCount leak when async payloads reject in updateBrowserTree by adding error handlers that balance the activate/commit pairing. - Move BrowserRoot setBrowserTreeState assignment from render to useLayoutEffect to avoid side effects under React Strict Mode. - Make visited response cache true LRU (delete+set on hit) and add a 30-minute upper bound for traversal cache hits to prevent arbitrarily stale back/forward content. * fix(navigation): address PR review feedback for Firefox navigation fix Fixes the following review issues from ask-bonk: Major fixes: - Fix prefetch cache eviction order to add entry first, then evict (prevents temporary overflow past MAX_PREFETCH_CACHE_SIZE) - Add error handling in renderNavigationPayload to ensure navigationSnapshotActiveCount is decremented on synchronous errors, preventing counter leaks Minor fixes: - Add cross-reference comments between Pages Router and App Router scroll restoration handlers (navigation.ts and app-browser-entry.ts) - Add JSDoc to getPathnameSnapshot/getSearchParamsSnapshot explaining cached behavior vs live window.location reads - Add comment documenting server action navigation flow (doesn't use activateNavigationSnapshot because it stays on same URL) - Add comment explaining Map iteration safety in resolveCommittedNavigations - Use stripBasePath in isSameRoute comparison for robust basePath handling - Explicitly pass undefined for historyUpdateMode in redirect chains with explanatory comment (prevents double URL push) All 1094 tests pass. * fix: prevent stale navigation bailout from leaking staged params Addresses review feedback on PR #690: - Move stageClientParams() to after final navId check in both cached and fresh paths - Build navigationSnapshot from local params instead of latestClientParams - Move storeVisitedResponseSnapshot after final stale check - Add doc comment about history method patching behavior This fixes a race where cancelled navigations could leak their staged params into subsequent unrelated navigations when commitClientNavigationState() was called later without clearing the pending state. Test: Add E2E test for cancelled slow navigation param leak scenario * fix: remove duplicate onRouterTransitionStart call and fix formatting The refactor to delegate Link navigation to navigateClientSide() left a duplicate notifyAppRouterTransitionStart() call in link.tsx, causing the callback to fire twice per push navigation. * fix(navigation): address code review feedback on Firefox cross-route navigation hang fix Fixes four edge cases identified in code review: 1. NavigationCommitSignal cleanup now resolves pending promises on unmount to prevent hanging callers if React unmounts the component (e.g., error boundary triggers full-page nav) 2. Added dev-mode warning for navigationSnapshotActiveCount going to 0 before decrement to catch activate/commit pairing bugs early 3. Changed prefetch eviction from if to while loop to match visited cache pattern and prevent temporary cache overflow during rapid prefetch calls 4. Moved storeVisitedResponseSnapshot below final navId check to avoid storing stale cache entries from superseded navigations Also added cross-reference comments between the two popstate handlers in app-browser-entry.ts and navigation.ts for future maintainers. * fix(navigation): resolve infinite recursion in getServerSearchParamsSnapshot The function getServerSearchParamsSnapshot had infinite recursion when called on the server - it would call itself infinitely when getClientNavigationState() returned null. Fixed by implementing proper server context handling: - Use _getServerContext() to access server navigation context - Cache ReadonlyURLSearchParams wrapper using symbol-based caching - Return cached empty instance when no context available - Follows established patterns from getServerParamsSnapshot and getSearchParamsSnapshot Fixes CI failures in PR #690 where 18 tests were failing with "Maximum call stack size exceeded" errors during SSR. * style(navigation): fix lint errors from stricter oxlint rules Convert interface declarations to type aliases per consistent-type-definitions rule: - CachedRscResponse, PrefetchCacheEntry, ClientNavigationRenderSnapshot - VisitedResponseCacheEntry in app-browser-entry.ts Add oxlint-disable block comments for react-hooks/rules-of-hooks violations: - useChildSegments, useClientNavigationRenderSnapshot, usePathname - useSearchParams, useParams The original conditional hook pattern (if isServer return early) is intentional and required for SSR/client duality. Server components must not call client-only React hooks. Block-level disable comments suppress the false positives while maintaining the correct runtime behavior. * fix(navigation): address review feedback on Firefox cross-route navigation fix - Fix isHashOnlyChange to strip basePath for consistent comparison with isSameRoute - Add snapshotPending guard to prevent double-decrement in catch block - Document storePrefetchResponse API contract (callers manage prefetchedUrls) - Remove duplicate prefetched.add from _appRouter.prefetch (ownership now in prefetchRscResponse) - Add invariant comment to drainPrePaintEffects explaining activate/commit pairing - Improve test error handling in cancelled navigation test with debug logging * fix: address PR review — prefetch dedup, comments, and test robustness - Add dedup guard to router.prefetch() matching link.tsx pattern (check/add prefetchedUrls before calling prefetchRscResponse) - Fix incorrect comments claiming prefetchRscResponse manages prefetchedUrls - Add doc comment to storePrefetchResponse noting caller owns URL tracking - Document module-level state assumption in app-browser-entry.ts - Add inline comments in drainPrePaintEffects for winning/superseded pairing - Add element visibility assertion in E2E cancelled-navigation test * chore: review changes implemented * Address ask-bonk review feedback: remove dead code and add defensive comments - Remove vestigial response field from PrefetchCacheEntry (never read by consumePrefetchResponse) - Add defensive comment for _snapshotPending guard brittleness - Document isSameRoute race condition during rapid navigations - Update test helper to use snapshot instead of response All changes are non-behavioral documentation/clarity improvements. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * fix: prevent double-decrement of navigationSnapshotActiveCount on renderNavigationPayload throw When updateBrowserTree throws synchronously inside renderNavigationPayload, the inner catch already calls commitClientNavigationState() and re-throws. Previously the outer navigateRsc catch saw _snapshotPending === true and decremented again, leaving the counter off by 1 for concurrent navigations. Fix by wrapping each renderNavigationPayload call in try-finally that always clears _snapshotPending, so the outer catch guard correctly skips the already-committed case. * docs: document latestClientParams staging invariant in stageClientParams Per bonk review: stageClientParams diverges latestClientParams from ClientNavigationState.clientParams between staging and commit. Server action snapshots read latestClientParams, so add a comment clarifying this narrow race is acceptable since the commit effect fires synchronously in the same React commit phase. * fix: address two blocking concerns from bonk review 1. Guard outer catch against hard-navigating to stale URL when superseded: - Hoist navId above the try block so it is accessible in the catch - Add 'if (navId !== activeNavigationId) return' before window.location.href - Move navId check before createFromFetch in cached route path to avoid wasted parse work and the same stale-URL risk on throw 2. Guard handleAsyncError in updateBrowserTree against counter corruption: - Add snapshotActivated parameter (default false) to updateBrowserTree - Only call commitClientNavigationState() when snapshotActivated is true - renderNavigationPayload passes true; server actions and HMR pass false (they never call activateNavigationSnapshot so must not decrement) - Update comments on server action and HMR call sites to document why Also add a note on restoreRscResponse that reconstructed Response.url is always empty string — the Response constructor does not accept a url option. * fix: tighten cached-route stale-nav guards and fix stale comment - Add navId check between cachedNavigationSnapshot creation and createFromFetch in the cached route path, so superseded navigations bail out before the async parse rather than only after - Fix stale line reference in stageClientParams comment (533 -> 544/558) - Document slow-route fixture delay / click timeout coupling in E2E test so future changes to the fixture delay don't silently break the test * fix: stage params after _snapshotPending=true in both nav paths, fix stale comment Move stageClientParams() to after _snapshotPending = true in both the cached-route path and the non-cached path. This makes the intent clearer: params are staged as part of an in-flight snapshot, not as a standalone side-effect before the snapshot flag is set. If renderNavigationPayload throws synchronously, its inner catch calls commitClientNavigationState() which flushes pendingClientParams — committing params for a route that never rendered. The hard-nav fallback in the outer catch resets everything, so this was self-correcting, but reordering makes the relationship explicit and guards the intent. Also replace the stale "lines 544/558" reference in the stageClientParams comment with the function name (registerServerActionCallback) so it doesn't rot as the file evolves. * fix: expand module-singleton comment, remove redundant stale-nav check, document BASE URL - Expand the module-level state comment to call out Map fragmentation as the most severe consequence of multiple instances: pendingNavigationCommits and pendingNavigationPrePaintEffects would split across instances, causing drainPrePaintEffects to miss effects queued by the other instance and permanently leaking navigationSnapshotActiveCount. - Remove the redundant navId !== activeNavigationId check between createClientNavigationRenderSnapshot (synchronous) and createFromFetch (async). The pre-check before createClientNavigationRenderSnapshot is sufficient; the meaningful post-check is after the await of createFromFetch. Added a comment noting the function is synchronous so no recheck is needed. - Add a comment to BASE in navigation-regressions.spec.ts explaining it follows the established repo convention (same pattern in navigation.spec.ts, server-client-only.spec.ts, after.spec.ts, etc.). * docs: annotate stageClientParams throw path in both nav paths If stageClientParams throws (e.g. a param object with a throwing getter), _snapshotPending is true but renderNavigationPayload was never called. The outer catch then calls commitClientNavigationState() which decrements a counter never incremented by activateNavigationSnapshot() — safe due to the > 0 guard — but pendingClientParams and hasPendingNavigationUpdate could persist until the hard-nav fallback resets JS state. Add a brief NB comment on both stageClientParams call sites noting that the outer catch hard-navigates, which resets all JS state, making this benign in practice. * fix: store visited response snapshot only after successful render Move storeVisitedResponseSnapshot to after the renderNavigationPayload try-finally block so we only cache RSC responses from navigations that actually rendered successfully. Previously, the cache write happened before renderNavigationPayload — if it threw, a future back/forward navigation could replay a snapshot from a navigation that never rendered. The hard-nav fallback in the outer catch made this self-correcting in practice, but caching only on success is the correct invariant. Also expand the cached-path navId comment to acknowledge the style asymmetry vs the non-cached path, explaining why no extra check is needed between createClientNavigationRenderSnapshot (synchronous) and createFromFetch. --------- Co-authored-by: Nathan Nguyen <146415969+NathanDrake2406@users.noreply.github.com> Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> Co-authored-by: James <james@eli.cx> |
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c17d6941be |
chore: migrate to vite plus (#535)
* chore: migrate to vite plus
* Disable typeAware and typeCheck
* Update CI
* Fix CI
* Fix test
* Clean
* Run test with vp
* Try revert
* react: false In test
* Fix test
* Revert "Try revert"
This reverts commit
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1c3401e245 |
perf: TTL-based eviction sweep for prefetch cache (#434)
* perf: add TTL-based eviction sweep for prefetch cache Before this change, expired prefetch cache entries were only cleaned on individual access or displaced by FIFO when at the 50-entry cap. On link-heavy pages, expired entries wasted slots and caused premature eviction of still-valid entries. Now storePrefetchResponse() sweeps all expired entries before falling back to FIFO eviction, so fresh entries survive longer under pressure. * fix: sync prefetched URL set on cache eviction Evicted entries were not removed from getPrefetchedUrls(), causing Link's prefetched.has() check to return true for stale URLs and skip re-prefetch. Clean up the prefetched set in both sweep and FIFO paths. Also derive test counts from MAX_PREFETCH_CACHE_SIZE constant and assert prefetched URL set consistency after eviction. * fix: address review comments on prefetch cache TTL sweep - Hoist Date.now() to top of storePrefetchResponse so sweep and new entry timestamp use the same instant - Export MAX_PREFETCH_CACHE_SIZE in next-shims.d.ts to match runtime export - Use fixed arbitrary time values in tests instead of real wall clock - Clarify why prefetchedUrls count excludes the new entry in the below-capacity test --------- Co-authored-by: James <james@eli.cx> |