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Uncaught undefined in in the <MatchInnerImpl> component #7457

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#7805
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Uncaught undefined in in the <MatchInnerImpl> component#7457
#7805

Description

@ryanagillie
ryanagillie
opened on May 21, 2026

Which project does this relate to?

Router

Describe the bug

This is a bit of a complicated one, but I think I've found a race condition where an undefined is thrown inside the <MatchInnerImpl> component after a beforeLoad redirect that causes the routes to fail to display.

It only fails on first load, and usually a refresh or HMR will fix it.

I only wrote this because some of these exact conditions were met in a private work repository and it took me 2 hours to create a stable reproduction.

Stack Trace 
defaultOnUncaughtError          @ react-dom_client.js?v=be4189c8:5256
logUncaughtError                @ react-dom_client.js?v=be4189c8:5286
runWithFiberInDEV               @ react-dom_client.js?v=be4189c8:850
lane.callback                   @ react-dom_client.js?v=be4189c8:5314
callCallback                    @ react-dom_client.js?v=be4189c8:4094
commitCallbacks                 @ react-dom_client.js?v=be4189c8:4102
runWithFiberInDEV               @ react-dom_client.js?v=be4189c8:850
commitLayoutEffectOnFiber       @ react-dom_client.js?v=be4189c8:6985
flushLayoutEffects              @ react-dom_client.js?v=be4189c8:8670
commitRoot                      @ react-dom_client.js?v=be4189c8:8583
commitRootWhenReady             @ react-dom_client.js?v=be4189c8:8078
performWorkOnRoot               @ react-dom_client.js?v=be4189c8:8050
performWorkOnRootViaSchedulerTask @ react-dom_client.js?v=be4189c8:9058
performWorkUntilDeadline        @ react-dom_client.js?v=be4189c8:35

<MatchInnerImpl>
exports.jsx                     @ react_jsx-runtime.js?v=eeebbf31:192
MatchView                       @ @tanstack_react-rout….js?v=9b2a07b8:6384
react_stack_bottom_frame        @ react-dom_client.js?v=be4189c8:12867
renderWithHooksAgain            @ react-dom_client.js?v=be4189c8:4267
renderWithHooks                 @ react-dom_client.js?v=be4189c8:4218
updateFunctionComponent         @ react-dom_client.js?v=be4189c8:5568
beginWork                       @ react-dom_client.js?v=be4189c8:6139
runWithFiberInDEV               @ react-dom_client.js?v=be4189c8:850
performUnitOfWork               @ react-dom_client.js?v=be4189c8:8428
workLoopSync                    @ react-dom_client.js?v=be4189c8:8324
renderRootSync                  @ react-dom_client.js?v=be4189c8:8308
performWorkOnRoot               @ react-dom_client.js?v=be4189c8:7993
performWorkOnRootViaSchedulerTask @ react-dom_client.js?v=be4189c8:9058
performWorkUntilDeadline        @ react-dom_client.js?v=be4189c8:35

<MatchView>
exports.jsx                     @ react_jsx-runtime.js?v=eeebbf31:192
MatchImpl                       @ @tanstack_react-rout….js?v=9b2a07b8:6328
react_stack_bottom_frame        @ react-dom_client.js?v=be4189c8:12867
renderWithHooksAgain            @ react-dom_client.js?v=be4189c8:4267
renderWithHooks                 @ react-dom_client.js?v=be4189c8:4218
updateFunctionComponent         @ react-dom_client.js?v=be4189c8:5568
updateSimpleMemoComponent       @ react-dom_client.js?v=be4189c8:5431
updateMemoComponent             @ react-dom_client.js?v=be4189c8:5406
beginWork                       @ react-dom_client.js?v=be4189c8:6209
runWithFiberInDEV               @ react-dom_client.js?v=be4189c8:850
performUnitOfWork               @ react-dom_client.js?v=be4189c8:8428
workLoopSync                    @ react-dom_client.js?v=be4189c8:8324
renderRootSync                  @ react-dom_client.js?v=be4189c8:8308
performWorkOnRoot               @ react-dom_client.js?v=be4189c8:7993
performWorkOnRootViaSchedulerTask @ react-dom_client.js?v=be4189c8:9058
performWorkUntilDeadline        @ react-dom_client.js?v=be4189c8:35

<MatchImpl>
exports.jsx                     @ react_jsx-runtime.js?v=eeebbf31:192
MatchesInner                    @ @tanstack_react-rout….js?v=9b2a07b8:6671
react_stack_bottom_frame        @ react-dom_client.js?v=be4189c8:12867
renderWithHooksAgain            @ react-dom_client.js?v=be4189c8:4267
renderWithHooks                 @ react-dom_client.js?v=be4189c8:4218
updateFunctionComponent         @ react-dom_client.js?v=be4189c8:5568
beginWork                       @ react-dom_client.js?v=be4189c8:6139
runWithFiberInDEV               @ react-dom_client.js?v=be4189c8:850
performUnitOfWork               @ react-dom_client.js?v=be4189c8:8428
workLoopSync                    @ react-dom_client.js?v=be4189c8:8324
renderRootSync                  @ react-dom_client.js?v=be4189c8:8308
performWorkOnRoot               @ react-dom_client.js?v=be4189c8:7993
performWorkOnRootViaSchedulerTask @ react-dom_client.js?v=be4189c8:9058
performWorkUntilDeadline        @ react-dom_client.js?v=be4189c8:35

<MatchesInner>
exports.jsx                     @ react_jsx-runtime.js?v=eeebbf31:192
Matches                         @ @tanstack_react-rout….js?v=9b2a07b8:6662
react_stack_bottom_frame        @ react-dom_client.js?v=be4189c8:12867
renderWithHooksAgain            @ react-dom_client.js?v=be4189c8:4267
renderWithHooks                 @ react-dom_client.js?v=be4189c8:4218
updateFunctionComponent         @ react-dom_client.js?v=be4189c8:5568
beginWork                       @ react-dom_client.js?v=be4189c8:6139
runWithFiberInDEV               @ react-dom_client.js?v=be4189c8:850
performUnitOfWork               @ react-dom_client.js?v=be4189c8:8428
workLoopSync                    @ react-dom_client.js?v=be4189c8:8324
renderRootSync                  @ react-dom_client.js?v=be4189c8:8308
performWorkOnRoot               @ react-dom_client.js?v=be4189c8:7956
performWorkOnRootViaSchedulerTask @ react-dom_client.js?v=be4189c8:9058
performWorkUntilDeadline        @ react-dom_client.js?v=be4189c8:35

<Matches>
exports.jsx                     @ react_jsx-runtime.js?v=eeebbf31:192
RouterProvider                  @ @tanstack_react-rout….js?v=9b2a07b8:6848
react_stack_bottom_frame        @ react-dom_client.js?v=be4189c8:12867
renderWithHooksAgain            @ react-dom_client.js?v=be4189c8:4267
renderWithHooks                 @ react-dom_client.js?v=be4189c8:4218
updateFunctionComponent         @ react-dom_client.js?v=be4189c8:5568
beginWork                       @ react-dom_client.js?v=be4189c8:6139
runWithFiberInDEV               @ react-dom_client.js?v=be4189c8:850
performUnitOfWork               @ react-dom_client.js?v=be4189c8:8428
workLoopSync                    @ react-dom_client.js?v=be4189c8:8324
renderRootSync                  @ react-dom_client.js?v=be4189c8:8308
performWorkOnRoot               @ react-dom_client.js?v=be4189c8:7956
performWorkOnRootViaSchedulerTask @ react-dom_client.js?v=be4189c8:9058
performWorkUntilDeadline        @ react-dom_client.js?v=be4189c8:35

<RouterProvider>
exports.jsxDEV                  @ react_jsx-dev-runtime.js?v=eeebbf31:192
(anonymous)                     @ main.tsx:59

Complete minimal reproducer

https://stackblitz.com/edit/github-udgl2qav

Steps to Reproduce the Bug

  1. Open link
  2. Page fails to load
  3. Open console
  4. Check error stack trace

Expected behavior

Should not be throwing an undefined and fail to render the page

Screenshots or Videos

No response

Platform

  • Router / Start Version: 1.170.5
  • OS: Any
  • Browser: Chrome
  • Browser Version: 148.0.7778.168
  • Bundler: vite
  • Bundler Version: 8.0.13

Additional context

No response

Activity

  1. codeart1st commented on May 21, 2026

    @codeart1st
    codeart1st
    on May 21, 2026

    #7120

  2. spark-altoira commented on May 29, 2026

    @spark-altoira
    spark-altoira
    on May 29, 2026

    Confirming this is reproducible on an older minor too — hitting it on @tanstack/[email protected] + @tanstack/[email protected] (Vite), so it's not specific to 1.170.x.

    Scenario

    File-based routing with this structure:

      src/app/parent/
    route.tsx               // createFileRoute('/parent') — bare wrapper
    not-authorized.tsx
    _authenticated/
      route.tsx             // ssr: false, async beforeLoad that populates context
      index.tsx             // URL: /parent
      onboarding/
        route.tsx           // beforeLoad reads context.X and conditionally throws redirect({ to: '/parent', replace: true })

    Direct hard-load of /parent/onboarding. The parent's async beforeLoad populates context, then the onboarding route's beforeLoad reads it and redirects back to /parent (a sibling under the same shared /parent + _authenticated parents). On first load this throws undefined; subsequent in-app navigations are fine, consistent with what @ryanagillie observed.

    Stack Trace

    defaultOnUncaughtError @ react-dom_client.js?v=0cdc0a44:5257
logUncaughtError @ react-dom_client.js?v=0cdc0a44:5287
runWithFiberInDEV @ react-dom_client.js?v=0cdc0a44:851
lane.callback @ react-dom_client.js?v=0cdc0a44:5315
callCallback @ react-dom_client.js?v=0cdc0a44:4095
commitCallbacks @ react-dom_client.js?v=0cdc0a44:4103
runWithFiberInDEV @ react-dom_client.js?v=0cdc0a44:851
commitLayoutEffectOnFiber @ react-dom_client.js?v=0cdc0a44:6986
flushLayoutEffects @ react-dom_client.js?v=0cdc0a44:8671
commitRoot @ react-dom_client.js?v=0cdc0a44:8584
commitRootWhenReady @ react-dom_client.js?v=0cdc0a44:8079
performWorkOnRoot @ react-dom_client.js?v=0cdc0a44:8051
performWorkOnRootViaSchedulerTask @ react-dom_client.js?v=0cdc0a44:9059
performWorkUntilDeadline @ react-dom_client.js?v=0cdc0a44:36
<MatchInnerImpl>
exports.jsx @ react_jsx-runtime.js?v=0cdc0a44:193
MatchView @ Match.js?v=0cdc0a44:95
react_stack_bottom_frame @ react-dom_client.js?v=0cdc0a44:12868
renderWithHooksAgain @ react-dom_client.js?v=0cdc0a44:4268
renderWithHooks @ react-dom_client.js?v=0cdc0a44:4219
updateFunctionComponent @ react-dom_client.js?v=0cdc0a44:5569
beginWork @ react-dom_client.js?v=0cdc0a44:6140
runWithFiberInDEV @ react-dom_client.js?v=0cdc0a44:851
performUnitOfWork @ react-dom_client.js?v=0cdc0a44:8429
workLoopSync @ react-dom_client.js?v=0cdc0a44:8325
renderRootSync @ react-dom_client.js?v=0cdc0a44:8309
performWorkOnRoot @ react-dom_client.js?v=0cdc0a44:7994
performWorkOnRootViaSchedulerTask @ react-dom_client.js?v=0cdc0a44:9059
performWorkUntilDeadline @ react-dom_client.js?v=0cdc0a44:36
<MatchView>
exports.jsx @ react_jsx-runtime.js?v=0cdc0a44:193
MatchImpl @ Match.js?v=0cdc0a44:44
react_stack_bottom_frame @ react-dom_client.js?v=0cdc0a44:12868
renderWithHooksAgain @ react-dom_client.js?v=0cdc0a44:4268
renderWithHooks @ react-dom_client.js?v=0cdc0a44:4219
updateFunctionComponent @ react-dom_client.js?v=0cdc0a44:5569
updateSimpleMemoComponent @ react-dom_client.js?v=0cdc0a44:5432
updateMemoComponent @ react-dom_client.js?v=0cdc0a44:5407
beginWork @ react-dom_client.js?v=0cdc0a44:6210
runWithFiberInDEV @ react-dom_client.js?v=0cdc0a44:851
performUnitOfWork @ react-dom_client.js?v=0cdc0a44:8429
workLoopSync @ react-dom_client.js?v=0cdc0a44:8325
renderRootSync @ react-dom_client.js?v=0cdc0a44:8309
performWorkOnRoot @ react-dom_client.js?v=0cdc0a44:7994
performWorkOnRootViaSchedulerTask @ react-dom_client.js?v=0cdc0a44:9059
performWorkUntilDeadline @ react-dom_client.js?v=0cdc0a44:36
<MatchImpl>
exports.jsx @ react_jsx-runtime.js?v=0cdc0a44:193
OutletImpl @ Match.js?v=0cdc0a44:273
react_stack_bottom_frame @ react-dom_client.js?v=0cdc0a44:12868
renderWithHooksAgain @ react-dom_client.js?v=0cdc0a44:4268
renderWithHooks @ react-dom_client.js?v=0cdc0a44:4219
updateFunctionComponent @ react-dom_client.js?v=0cdc0a44:5569
updateSimpleMemoComponent @ react-dom_client.js?v=0cdc0a44:5432
updateMemoComponent @ react-dom_client.js?v=0cdc0a44:5407
beginWork @ react-dom_client.js?v=0cdc0a44:6210
runWithFiberInDEV @ react-dom_client.js?v=0cdc0a44:851
performUnitOfWork @ react-dom_client.js?v=0cdc0a44:8429
workLoopSync @ react-dom_client.js?v=0cdc0a44:8325
renderRootSync @ react-dom_client.js?v=0cdc0a44:8309
performWorkOnRoot @ react-dom_client.js?v=0cdc0a44:7994
performWorkOnRootViaSchedulerTask @ react-dom_client.js?v=0cdc0a44:9059
performWorkUntilDeadline @ react-dom_client.js?v=0cdc0a44:36
<OutletImpl>
exports.jsx @ react_jsx-runtime.js?v=0cdc0a44:193
(anonymous) @ Match.js?v=0cdc0a44:188
mountMemo @ react-dom_client.js?v=0cdc0a44:4931
useMemo @ react-dom_client.js?v=0cdc0a44:13024
exports.useMemo @ react.js?v=0cdc0a44:736
MatchInnerImpl @ Match.js?v=0cdc0a44:185
react_stack_bottom_frame @ react-dom_client.js?v=0cdc0a44:12868
renderWithHooks @ react-dom_client.js?v=0cdc0a44:4213
updateFunctionComponent @ react-dom_client.js?v=0cdc0a44:5569
updateSimpleMemoComponent @ react-dom_client.js?v=0cdc0a44:5432
updateMemoComponent @ react-dom_client.js?v=0cdc0a44:5407
beginWork @ react-dom_client.js?v=0cdc0a44:6210
runWithFiberInDEV @ react-dom_client.js?v=0cdc0a44:851
performUnitOfWork @ react-dom_client.js?v=0cdc0a44:8429
workLoopSync @ react-dom_client.js?v=0cdc0a44:8325
renderRootSync @ react-dom_client.js?v=0cdc0a44:8309
performWorkOnRoot @ react-dom_client.js?v=0cdc0a44:7994
performWorkOnRootViaSchedulerTask @ react-dom_client.js?v=0cdc0a44:9059
performWorkUntilDeadline @ react-dom_client.js?v=0cdc0a44:36
<MatchInnerImpl>
exports.jsx @ react_jsx-runtime.js?v=0cdc0a44:193
MatchView @ Match.js?v=0cdc0a44:96
react_stack_bottom_frame @ react-dom_client.js?v=0cdc0a44:12868
renderWithHooksAgain @ react-dom_client.js?v=0cdc0a44:4268
renderWithHooks @ react-dom_client.js?v=0cdc0a44:4219
updateFunctionComponent @ react-dom_client.js?v=0cdc0a44:5569
beginWork @ react-dom_client.js?v=0cdc0a44:6140
runWithFiberInDEV @ react-dom_client.js?v=0cdc0a44:851
performUnitOfWork @ react-dom_client.js?v=0cdc0a44:8429
workLoopSync @ react-dom_client.js?v=0cdc0a44:8325
renderRootSync @ react-dom_client.js?v=0cdc0a44:8309
performWorkOnRoot @ react-dom_client.js?v=0cdc0a44:7994
performWorkOnRootViaSchedulerTask @ react-dom_client.js?v=0cdc0a44:9059
performWorkUntilDeadline @ react-dom_client.js?v=0cdc0a44:36
<MatchView>
exports.jsx @ react_jsx-runtime.js?v=0cdc0a44:193
MatchImpl @ Match.js?v=0cdc0a44:44
react_stack_bottom_frame @ react-dom_client.js?v=0cdc0a44:12868
renderWithHooksAgain @ react-dom_client.js?v=0cdc0a44:4268
renderWithHooks @ react-dom_client.js?v=0cdc0a44:4219
updateFunctionComponent @ react-dom_client.js?v=0cdc0a44:5569
updateSimpleMemoComponent @ react-dom_client.js?v=0cdc0a44:5432
updateMemoComponent @ react-dom_client.js?v=0cdc0a44:5407
beginWork @ react-dom_client.js?v=0cdc0a44:6210
runWithFiberInDEV @ react-dom_client.js?v=0cdc0a44:851
performUnitOfWork @ react-dom_client.js?v=0cdc0a44:8429
workLoopSync @ react-dom_client.js?v=0cdc0a44:8325
renderRootSync @ react-dom_client.js?v=0cdc0a44:8309
performWorkOnRoot @ react-dom_client.js?v=0cdc0a44:7994
performWorkOnRootViaSchedulerTask @ react-dom_client.js?v=0cdc0a44:9059
performWorkUntilDeadline @ react-dom_client.js?v=0cdc0a44:36
<MatchImpl>
exports.jsx @ react_jsx-runtime.js?v=0cdc0a44:193
OutletImpl @ Match.js?v=0cdc0a44:273
react_stack_bottom_frame @ react-dom_client.js?v=0cdc0a44:12868
renderWithHooksAgain @ react-dom_client.js?v=0cdc0a44:4268
renderWithHooks @ react-dom_client.js?v=0cdc0a44:4219
updateFunctionComponent @ react-dom_client.js?v=0cdc0a44:5569
updateSimpleMemoComponent @ react-dom_client.js?v=0cdc0a44:5432
updateMemoComponent @ react-dom_client.js?v=0cdc0a44:5407
beginWork @ react-dom_client.js?v=0cdc0a44:6210
runWithFiberInDEV @ react-dom_client.js?v=0cdc0a44:851
performUnitOfWork @ react-dom_client.js?v=0cdc0a44:8429
workLoopSync @ react-dom_client.js?v=0cdc0a44:8325
renderRootSync @ react-dom_client.js?v=0cdc0a44:8309
performWorkOnRoot @ react-dom_client.js?v=0cdc0a44:7994
performWorkOnRootViaSchedulerTask @ react-dom_client.js?v=0cdc0a44:9059
performWorkUntilDeadline @ react-dom_client.js?v=0cdc0a44:36
<OutletImpl>
exports.jsxDEV @ react_jsx-dev-runtime.js?v=0cdc0a44:193
(anonymous) @ __root.tsx:72
react_stack_bottom_frame @ react-dom_client.js?v=0cdc0a44:12868
renderWithHooks @ react-dom_client.js?v=0cdc0a44:4213
updateFunctionComponent @ react-dom_client.js?v=0cdc0a44:5569
beginWork @ react-dom_client.js?v=0cdc0a44:6140
runWithFiberInDEV @ react-dom_client.js?v=0cdc0a44:851
performUnitOfWork @ react-dom_client.js?v=0cdc0a44:8429
workLoopSync @ react-dom_client.js?v=0cdc0a44:8325
renderRootSync @ react-dom_client.js?v=0cdc0a44:8309
performWorkOnRoot @ react-dom_client.js?v=0cdc0a44:7994
performWorkOnRootViaSchedulerTask @ react-dom_client.js?v=0cdc0a44:9059
performWorkUntilDeadline @ react-dom_client.js?v=0cdc0a44:36
<RootLayout>
exports.jsx @ react_jsx-runtime.js?v=0cdc0a44:193
(anonymous) @ Match.js?v=0cdc0a44:187
mountMemo @ react-dom_client.js?v=0cdc0a44:4931
useMemo @ react-dom_client.js?v=0cdc0a44:13024
exports.useMemo @ react.js?v=0cdc0a44:736
MatchInnerImpl @ Match.js?v=0cdc0a44:185
react_stack_bottom_frame @ react-dom_client.js?v=0cdc0a44:12868
renderWithHooks @ react-dom_client.js?v=0cdc0a44:4213
updateFunctionComponent @ react-dom_client.js?v=0cdc0a44:5569
updateSimpleMemoComponent @ react-dom_client.js?v=0cdc0a44:5432
updateMemoComponent @ react-dom_client.js?v=0cdc0a44:5407
beginWork @ react-dom_client.js?v=0cdc0a44:6210
runWithFiberInDEV @ react-dom_client.js?v=0cdc0a44:851
performUnitOfWork @ react-dom_client.js?v=0cdc0a44:8429
workLoopSync @ react-dom_client.js?v=0cdc0a44:8325
renderRootSync @ react-dom_client.js?v=0cdc0a44:8309
performWorkOnRoot @ react-dom_client.js?v=0cdc0a44:7994
performWorkOnRootViaSchedulerTask @ react-dom_client.js?v=0cdc0a44:9059
performWorkUntilDeadline @ react-dom_client.js?v=0cdc0a44:36
<MatchInnerImpl>
exports.jsx @ react_jsx-runtime.js?v=0cdc0a44:193
MatchView @ Match.js?v=0cdc0a44:96
react_stack_bottom_frame @ react-dom_client.js?v=0cdc0a44:12868
renderWithHooksAgain @ react-dom_client.js?v=0cdc0a44:4268
renderWithHooks @ react-dom_client.js?v=0cdc0a44:4219
updateFunctionComponent @ react-dom_client.js?v=0cdc0a44:5569
beginWork @ react-dom_client.js?v=0cdc0a44:6140
runWithFiberInDEV @ react-dom_client.js?v=0cdc0a44:851
performUnitOfWork @ react-dom_client.js?v=0cdc0a44:8429
workLoopSync @ react-dom_client.js?v=0cdc0a44:8325
renderRootSync @ react-dom_client.js?v=0cdc0a44:8309
performWorkOnRoot @ react-dom_client.js?v=0cdc0a44:7994
performWorkOnRootViaSchedulerTask @ react-dom_client.js?v=0cdc0a44:9059
performWorkUntilDeadline @ react-dom_client.js?v=0cdc0a44:36
<MatchView>
exports.jsx @ react_jsx-runtime.js?v=0cdc0a44:193
MatchImpl @ Match.js?v=0cdc0a44:44
react_stack_bottom_frame @ react-dom_client.js?v=0cdc0a44:12868
renderWithHooksAgain @ react-dom_client.js?v=0cdc0a44:4268
renderWithHooks @ react-dom_client.js?v=0cdc0a44:4219
updateFunctionComponent @ react-dom_client.js?v=0cdc0a44:5569
updateSimpleMemoComponent @ react-dom_client.js?v=0cdc0a44:5432
updateMemoComponent @ react-dom_client.js?v=0cdc0a44:5407
beginWork @ react-dom_client.js?v=0cdc0a44:6210
runWithFiberInDEV @ react-dom_client.js?v=0cdc0a44:851
performUnitOfWork @ react-dom_client.js?v=0cdc0a44:8429
workLoopSync @ react-dom_client.js?v=0cdc0a44:8325
renderRootSync @ react-dom_client.js?v=0cdc0a44:8309
performWorkOnRoot @ react-dom_client.js?v=0cdc0a44:7994
performWorkOnRootViaSchedulerTask @ react-dom_client.js?v=0cdc0a44:9059
performWorkUntilDeadline @ react-dom_client.js?v=0cdc0a44:36
<MatchImpl>
exports.jsx @ react_jsx-runtime.js?v=0cdc0a44:193
MatchesInner @ Matches.js?v=0cdc0a44:32
react_stack_bottom_frame @ react-dom_client.js?v=0cdc0a44:12868
renderWithHooksAgain @ react-dom_client.js?v=0cdc0a44:4268
renderWithHooks @ react-dom_client.js?v=0cdc0a44:4219
updateFunctionComponent @ react-dom_client.js?v=0cdc0a44:5569
beginWork @ react-dom_client.js?v=0cdc0a44:6140
runWithFiberInDEV @ react-dom_client.js?v=0cdc0a44:851
performUnitOfWork @ react-dom_client.js?v=0cdc0a44:8429
workLoopConcurrentByScheduler @ react-dom_client.js?v=0cdc0a44:8425
renderRootConcurrent @ react-dom_client.js?v=0cdc0a44:8408
performWorkOnRoot @ react-dom_client.js?v=0cdc0a44:7957
performWorkOnRootViaSchedulerTask @ react-dom_client.js?v=0cdc0a44:9059
performWorkUntilDeadline @ react-dom_client.js?v=0cdc0a44:36
<MatchesInner>
exports.jsx @ react_jsx-runtime.js?v=0cdc0a44:193
Matches @ Matches.js?v=0cdc0a44:23
react_stack_bottom_frame @ react-dom_client.js?v=0cdc0a44:12868
renderWithHooksAgain @ react-dom_client.js?v=0cdc0a44:4268
renderWithHooks @ react-dom_client.js?v=0cdc0a44:4219
updateFunctionComponent @ react-dom_client.js?v=0cdc0a44:5569
beginWork @ react-dom_client.js?v=0cdc0a44:6140
runWithFiberInDEV @ react-dom_client.js?v=0cdc0a44:851
performUnitOfWork @ react-dom_client.js?v=0cdc0a44:8429
workLoopConcurrentByScheduler @ react-dom_client.js?v=0cdc0a44:8425
renderRootConcurrent @ react-dom_client.js?v=0cdc0a44:8408
performWorkOnRoot @ react-dom_client.js?v=0cdc0a44:7957
performWorkOnRootViaSchedulerTask @ react-dom_client.js?v=0cdc0a44:9059
performWorkUntilDeadline @ react-dom_client.js?v=0cdc0a44:36
<Matches>
exports.jsx @ react_jsx-runtime.js?v=0cdc0a44:193
RouterProvider @ RouterProvider.js?v=0cdc0a44:39
react_stack_bottom_frame @ react-dom_client.js?v=0cdc0a44:12868
renderWithHooksAgain @ react-dom_client.js?v=0cdc0a44:4268
renderWithHooks @ react-dom_client.js?v=0cdc0a44:4219
updateFunctionComponent @ react-dom_client.js?v=0cdc0a44:5569
beginWork @ react-dom_client.js?v=0cdc0a44:6140
runWithFiberInDEV @ react-dom_client.js?v=0cdc0a44:851
performUnitOfWork @ react-dom_client.js?v=0cdc0a44:8429
workLoopConcurrentByScheduler @ react-dom_client.js?v=0cdc0a44:8425
renderRootConcurrent @ react-dom_client.js?v=0cdc0a44:8408
performWorkOnRoot @ react-dom_client.js?v=0cdc0a44:7957
performWorkOnRootViaSchedulerTask @ react-dom_client.js?v=0cdc0a44:9059
performWorkUntilDeadline @ react-dom_client.js?v=0cdc0a44:36
<RouterProvider>
exports.jsx @ react_jsx-runtime.js?v=0cdc0a44:193
children @ StartClient.js?t=1780082822866&v=0cdc0a44:10
AwaitInner @ awaited.js?v=0cdc0a44:28
react_stack_bottom_frame @ react-dom_client.js?v=0cdc0a44:12868
renderWithHooksAgain @ react-dom_client.js?v=0cdc0a44:4268
renderWithHooks @ react-dom_client.js?v=0cdc0a44:4219
updateFunctionComponent @ react-dom_client.js?v=0cdc0a44:5569
beginWork @ react-dom_client.js?v=0cdc0a44:6140
runWithFiberInDEV @ react-dom_client.js?v=0cdc0a44:851
performUnitOfWork @ react-dom_client.js?v=0cdc0a44:8429
workLoopConcurrentByScheduler @ react-dom_client.js?v=0cdc0a44:8425
renderRootConcurrent @ react-dom_client.js?v=0cdc0a44:8408
performWorkOnRoot @ react-dom_client.js?v=0cdc0a44:7957
performWorkOnRootViaSchedulerTask @ react-dom_client.js?v=0cdc0a44:9059
performWorkUntilDeadline @ react-dom_client.js?v=0cdc0a44:36
<AwaitInner>
exports.jsx @ react_jsx-runtime.js?v=0cdc0a44:193
Await @ awaited.js?v=0cdc0a44:19
react_stack_bottom_frame @ react-dom_client.js?v=0cdc0a44:12868
renderWithHooksAgain @ react-dom_client.js?v=0cdc0a44:4268
renderWithHooks @ react-dom_client.js?v=0cdc0a44:4219
updateFunctionComponent @ react-dom_client.js?v=0cdc0a44:5569
beginWork @ react-dom_client.js?v=0cdc0a44:6140
runWithFiberInDEV @ react-dom_client.js?v=0cdc0a44:851
performUnitOfWork @ react-dom_client.js?v=0cdc0a44:8429
workLoopConcurrentByScheduler @ react-dom_client.js?v=0cdc0a44:8425
renderRootConcurrent @ react-dom_client.js?v=0cdc0a44:8408
performWorkOnRoot @ react-dom_client.js?v=0cdc0a44:7957
performWorkOnRootViaSchedulerTask @ react-dom_client.js?v=0cdc0a44:9059
performWorkUntilDeadline @ react-dom_client.js?v=0cdc0a44:36
<Await>
exports.jsx @ react_jsx-runtime.js?v=0cdc0a44:193
StartClient @ StartClient.js?t=1780082822866&v=0cdc0a44:8
react_stack_bottom_frame @ react-dom_client.js?v=0cdc0a44:12868
renderWithHooksAgain @ react-dom_client.js?v=0cdc0a44:4268
renderWithHooks @ react-dom_client.js?v=0cdc0a44:4219
updateFunctionComponent @ react-dom_client.js?v=0cdc0a44:5569
beginWork @ react-dom_client.js?v=0cdc0a44:6140
runWithFiberInDEV @ react-dom_client.js?v=0cdc0a44:851
performUnitOfWork @ react-dom_client.js?v=0cdc0a44:8429
workLoopConcurrentByScheduler @ react-dom_client.js?v=0cdc0a44:8425
renderRootConcurrent @ react-dom_client.js?v=0cdc0a44:8408
performWorkOnRoot @ react-dom_client.js?v=0cdc0a44:7957
performWorkOnRootViaSchedulerTask @ react-dom_client.js?v=0cdc0a44:9059
performWorkUntilDeadline @ react-dom_client.js?v=0cdc0a44:36
<StartClient>
exports.jsxDEV @ react_jsx-dev-runtime.js?v=0cdc0a44:193
(anonymous) @ client.tsx:9
exports.startTransition @ react.js?v=0cdc0a44:682
(anonymous) @ client.tsx:5

    Platform

    • Router / Start Version: 1.168.5
    • Browser: Chrome
    • Browser Version:
    • Bundler: Vite 6
    • Note: app uses ssr: false on the layout route that owns the async beforeLoad

  3. jamesknelson commented on Jun 10, 2026

    @jamesknelson
    jamesknelson
    on Jun 10, 2026

    As a workaround for what I think is the same issue, I'm imperatively calling the deprecated navigate function in a beforeLoad instead of throwing a redirect.

  4. schiller-manuel
    added 3 commits that reference this issue on Jun 15, 2026

    fix: match loading

    9698aee

    fix: match loading

    3cb972f

    fix: match loading

    eeedf96
  5. schiller-manuel
    added 3 commits that reference this issue on Jun 25, 2026

    fix: match loading

    4f35374

    fix: match loading

    aadf3ba

    fix: match loading

    e9acd3a
  6. Sheraff
    added a commit that references this issue on Jul 4, 2026

    test: pin 24 community-reported issues fixed by the match-loading wor…

    60eb597

  7. xofromthemoon commented on Jul 27, 2026

    @xofromthemoon
    xofromthemoon
    on Jul 27, 2026

    Running into the same bug :(

  8. tyler-dane
    added a commit that references this issue on Aug 3, 2026

    fix(web): patch tanstack router redirect race throwing undefined (#2553)

    44a5053
  9. Sheraff
    closed this as completedin #7805on Aug 4, 2026
  10. tyler-dane
    added a commit that references this issue on Aug 5, 2026

    fix(web): upgrade @tanstack/react-router to 1.170.20, remove vendor p…

    f0e39f2
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