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Graph/redirect-loop-and-swallowed-redirect

AntiPattern

Redirect/Redirect Middleware Loops

redirect-loop-and-swallowed-redirect

Redirect logic can bounce between routes when middleware exclusions, catch/swallow behavior, or overlapping route prefixes prevent the redirect from completing, sending requests into repeated redirects until hitting browser limits or breaking expected navigation.

Node Details

Public graph metadata

Updated6/30/2026

Connections

30 linked nodes

MATCHESSolution

Configure Next.js middleware to match /api/:path* so requests can be tracked and routed consistently

MATCHESSolution

Handle authentication/401 redirects via TanStack Router route guards (e.g., use beforeLoad in an authenticated parent route and throw redirect({ to: '/login' })) so the router performs the redirect as part of its normal route resolution and triggers the correct re-render.

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Create a memoized router context object from the app context and call `router.invalidate()` in a `useEffect` when that memoized object changes, so `beforeLoad`/`loader` rerun with the updated data.

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use hash-based routing — react + tanstack router + github pages. Tension: The default "browser" routing will exhibit the behaviour you describe.

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Set redirect_slashes=False and add both "" and "/" route decorators so both /api/users and /api/users/ work reliably

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Add a force reload flag — Next.js App Router API route. Tension: ensure functions aren't reused. Outcome: export const dynamic = 'force-dynamic'; export const revalidate = 0;.

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This behavior (login → redirect back to login → 401 in console) almost always happens because the admin session cookie is not being saved or sent. — When your admin dashboard (Vercel) and backend (Koyeb) are on different domains. Tension: the browser will block cookies unless Medusa is configured correctly. Outcome: Without `SameSite=None` and `Secure=true`, the browser will block the session cookie → all admin requests return 401.

MATCHESSolution

to your GoRouter. Outcome: You could also try to use the redirect function.

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Clear the cookies and test it — on another browser. Tension: private routes all redirect to the home page. Outcome: it went trough just fine.

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Use react middleware to check for the cookie and redirect with react router, then call the validation route after the token is found

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Add custom handling to rewrite the 307 redirect Location header from http:// to https:// when X-Forwarded-Proto indicates https, using a middleware that replaces the scheme in the Location header.

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Use RedirectResponse as the response object, call set_cookie() on it, and return that redirect response

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Consider using custom APIRoute instead. — It's quite similar to middleware in functionality, but it's called after the routing. Tension: there is no easy way to get this information. Outcome: app.router.route_class = LoggingRouter.

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Do not rely on parent-app `@app.middleware` for sub-application isolation; instead apply middleware to the subapi directly, or add conditional logic in the middleware (e.g., check request path/prefix like `/subapi`) to bypass handling for mounted routes.

MATCHESSolution

fetch(url, { method: 'POST', redirect: 'follow'}) — frontend app is configured to follow the server-side redirect. Tension: not being automatically redirected. Outcome: fetch(url, { method: 'POST', redirect: 'follow'}).

MATCHESSolution

return the path to which you'd like to redirect — the `redirectTo()` method on your `RegisterController`. Tension: expected to return a string of the path in which to redirect. Outcome: return action([StripeConnectController::class, 'StripeOnboarding101']);.

MATCHESSolution

-back button = `cancel_url` — To loop back to your issue:.

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-browser back button = the customer should get redirected back to your endpoint — To loop back to your issue:. Tension: you could implement it to handle a second visit after Session creation differently.

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There's no simple solution to this. — when redirection is required. Tension: this doesn't really solve the issue when redirection is required. Outcome: I would try using the redirect `if_required` option.

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not redirect if the URL is already `/admin/main/users` — if ( adminconfig?.matcher.includes(pathname) || pathname.startsWith("/admin/") ) {.

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Add "/support-us" to the middleware matcher array

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Resolve the conflict by handling redirection consistently in Cloudflare (and/or disabling the Apache redirect for the same purpose), then set Cloudflare SSL/TLS encryption to Full (Strict) so HTTPS upgrades and redirects complete without looping.

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Use history replacement for the redirect (e.g., `navigate('/sign-in', { replace: true })`), so repeated StrictMode navigations only update the current history entry.

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Use the correct route mounting and handler path so GET /api/weather is matched before the unknown-endpoint middleware

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Follow the recommended Next.js middleware approach from the referenced Vercel issue—perform the redirect via Next.js middleware (or return a proper redirect response in the supported way) so the URL is actually changed after authentication.

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case "CallbackRouteError": return { error: "Invalid credentials!" } — in my `login.ts` server action in the switch case clause. Tension: to return the correct errors. Outcome: bypass this error.

MATCHESSolution

redirect-uri: "https://localhost:41448/redirect-uri" — Here’s my application.yml configuration:.

MATCHESSolution

using reverse. — return redirect(reverse('ProductSingle', product.slug) + '#SectionInWebsite'). Tension: append "#SectionInWebsite" to the end of the redirect function. Outcome: return redirect(reverse('ProductSingle', product.slug) + '#SectionInWebsite').

MATCHESSolution

Move the `redirect()` call outside the `try/catch` (e.g., set a success flag and redirect after the block), or in the `catch` re-throw only redirect-related errors so they can propagate.

MATCHESSolution

Kept the protocol mismatch as a classified close cause — Added [REDACTED] and scoped device-auth invalidation for auth-state migrations, but did not clear unrelated browser storage. Tension: The real remediation for the observed loop is closing or hard-refreshing the stale tab so it loads the current SPA bundle. Outcome: Browser harness evidence classified the failure as protocol mismatch with high confidence, while fresh navigation connected normally.

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