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Graph/route-prefix-duplication-redirect-loop

Pattern

Route Prefix Mismatch Loops

route-prefix-duplication-redirect-loop

Router path prefixes and redirect targets get duplicated or repeatedly re-matched after mounting, so requests fall into self-reinforcing handler/redirect chains (e.g., /api/weather/api/weather or /admin bouncing) until they hit 404s or ERR_TOO_MANY_REDIRECTS.

Node Details

Public graph metadata

Updated7/2/2026

Connections

30 linked nodes

Protected routes immediately redirect as if the user is unauthenticated when the app first loads, even though authentication may still be in progress. The `RequiredAuth` component logs `user` as null on initial render and triggers `Navigate` incorrectly.

PrivateRoutes conditionally returns a function/JSX in a way that triggers a React warning about returning a function or performing side effects during render. The component is also trying to log out users based on token expiration.

if I go directly https://jbetoreyes.github.io/beyond-brand-boosters/about-us I get a 404 — I'm using react + tanstack router + github pages. Tension: page loads fine, but if I go directly. Outcome: use hash-based routing which is documented here.

Google Search Console saying that there are too many redirects on my homepage — on my homepage. Tension: I want the redirect to happen to both - http and non-www. Outcome: when i enter `curl -I -L http://fiziokaspars.lv`, i get double redirect.

502 preflight error between Vue.js frontend and Express backend

In an Angular 18 SSR app with i18n, direct URL access to parameterized routes (e.g., /en/items/12345) returns a 404, while in-app navigation via the router works correctly.

I have a route `/property/:id` that includes a button which, when clicked, should redirect to `/profile/:id`. Tension: It only seems to fail when trying to redirect from `/property/:id` to `/profile/:id`. Outcome: in console it shows response 404.

I keep running into a `net::ERR_TOO_MANY_REDIRECTS` error when I try to access my site at `www.example.io` — setting up my Next.js project hosted on Vercel with a custom domain managed through Cloudflare. Tension: Despite configuring the DNS and SSL settings correctly. Outcome: Turns out Vercel provides documentation about how to fix it for Cloudflare.

RedirectResponse goes to "/" without the authentication cookie

Defining FastAPI routes in a loop causes each endpoint to behave like the last model

A React frontend POST to http://localhost:4000/api/checkout consistently returns 404 Not Found even though an Express route for checkout is defined.

Checkout redirect can be faked by appending the success query string or spoofing the HTTP referer

React SPA routes fail when copied and pasted URLs are not working

localhost redirected you too many times — if user is admin, admin/main/users or admin/path* not working. Outcome: not-admin redirecting is working.

A combined middleware setup in Redux Toolkit causes `toastMiddleware` to effectively run twice, resulting in two toast messages being added for a single action, even though the logging only occurs once. This issue does not occur when the middleware are concatenated separately.

Any package update or frontend build regenerated that directory and silently removed the custom route/bootstrap scripts — A local web gateway served its [REDACTED] directly from a package build directory. Tension: the live [REDACTED] page reverted to the stock UI.

All routes except /login redirect back to /login

The Heroku-hosted MERN app receives many automated-looking requests from the same forwarded IP in the same second, with suspicious query/path content (e.g., unexpected “if”/“php” strings). This behavior appears to be scanning or an attack proxy and raises concerns about security and abuse.

I sometimes get `UserLayout` showing for `"/admin/user/"` or matching conflicts due to absolute vs relative paths. — mount the same relative child routes under two parents (two layouts) without duplication. Outcome: I mounted user pages only under `"/"` inside `UserLayout`, guarded for both roles (`AppUser` + `Admin`).

Multiple <Route> entries in React Router with the same path/component only result in rendering the content once instead of three times.

React Router navigation/refresh triggers a 'change in order of Hooks' error in Account.jsx. This happens because the component sometimes returns early before calling hooks.

Accessing https://example.com results in a “too many redirects” loop, while other domain variants redirect correctly for a React app served by Apache with Cloudflare-managed DNS/SSL.

When a REST call returns 403, the React SPA is redirected to the sign-in page, but in development React StrictMode causes the redirect to happen twice (pushing two history entries).

A React Router DOM route needs a partially static path segment `/property-in-cityName/` where only `cityName` is dynamic, but entering `/property-in-newyork/` returns 404. Attempts to use a route like `/property-in-:cityName/` match incorrectly and `useParams()` yields `undefined`.

GET /api/weather returns "unknown endpoint" from middleware instead of the expected JSON response

After signing in, middleware redirection occurs, but the browser URL remains unchanged (e.g., it doesn't update to the intended callback/protected route).

I see multiple redirects in the network tab. I have this error: ERR_TOO_MANY_REDIRECTS — I'm working on a REST API using Java 21 with Spring Boot 3.3, and I'm trying to implement authentication through an external site using OpenID.

the router does not generate the correct urls.

DRF returns 404 before firing an extra action for a UUID URL

In Next.js 15 App Router server actions, calling `redirect()` inside a `try/catch` causes `NEXT_REDIRECT` to be thrown and then swallowed by the `catch`, preventing the redirect from happening.

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