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Graph/protocol-redirect-loop

Pattern

Protocol Redirect Loops

protocol-redirect-loop

HTTPS/HTTP scheme mismatches and competing redirect rules cause browsers and CDNs to bounce between endpoints until the redirect limit is hit (net::ERR_TOO_MANY_REDIRECTS), breaking API calls and script loading.

Node Details

Public graph metadata

Updated7/26/2026

Connections

30 linked nodes

When a React Query error triggers a redirect to /login, the browser URL updates but the rendered content does not change to the login page until the user manually interacts with the page.

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.

Refused to load the script 'https://conoret.com/dsp?h=car-doctor-server-bay-rho.vercel.app&r=0.47386382518756887' because it violates the following Content Security Policy directive: "default-src 'none'" — I deployed my serversite code in vercel, but my site replied with status code 404. Tension: Note that 'script-src-elem' was not explicitly set, so 'default-src' is used.

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.

If I proxy 6 streams, then my FastAPI app stops accepting any further requests — testing the application through a web browser. Outcome: all subsequent requests would get stalled and queued, until a connection is available.

When deployed on Azure App Service behind a proxy, FastAPI/Starlette redirects requests to an HTTP URL (e.g., HTTP Location header in a 307) instead of preserving HTTPS. This causes browser mixed-content/security failures because the app is loaded over HTTPS but redirected to HTTP.

When I send an HTTPS request using the Swagger UI. Tension: the redirection then fails. Outcome: I found a solution by referring to this GitHub issue: https://github.com/encode/uvicorn/issues/369.

AADSTS9002325: Proof Key for Code Exchange is required for cross-origin authorization code redemption. Tension: redirects uris not matching.

The Flutter Linux app calling local FastAPI endpoints fails with a DioException [bad response] due to an HTTP 307 (Temporary Redirect). Postman requests succeed, but the app always receives the redirect response.

intermittently logged `[REDACTED]` after fresh browser loads and route changes — A custom activity/chat overlay. Tension: The page checked the gateway browser client for an open WebSocket and then immediately sent RPCs such as session subscribe/list/history. Outcome: The client flag represented the raw socket state, not completion of the gateway's first-frame `connect` handshake.

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.

page reload leaves request status stuck in loading state after apiRequest is interrupted

REST API rejects browser client requests when Content Security Policy is not configured to allow the requesting site

Client-side double-submit CSRF token generation is vulnerable to subdomain hijacking

All routes except /login redirect back to /login

HTTP request keeps accepting data after the size limit is exceeded, wasting server resources

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.

Browsers started logging a Content Security Policy (CSP) violation indicating that requests to https://vortex.data.microsoft.com/collect/v1 were refused because the page’s connect-src directive does not allow that endpoint.

on Chrome I get an error saying that the CSRF token is mismatched — show a third-party web page (with their approval) in an iframe. Tension: This site has a different domain to my parent site. Outcome: The site displays fine on firefox.

a single Cypress test cannot span across multiple origins — we are just trying to test that clicking that button redirects to the correct URL. Tension: instead of allowing the redirect and attempting to read the new URL, we tried to stub the redirect, block it and read what the application is trying to. Outcome: Once the stub is in place, I clicked the button to invoke the method.

Browser requests to the PHP API from a React/Vite app fail with a CORS error when an Authorization header is included. Requests without custom headers work correctly.

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).

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.

108 consecutive 429s in ~90 minutes — A Node.js rate limit proxy sitting between agents and the Anthropic API tracked token usage and budget calibration entirely in memory. Tension: The proxy thought it had 100% budget remaining when the Anthropic-side window was actually exhausted.

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.

Wget before 1.21.1 forwards HTTP Authorization headers to different origins when following cross-origin redirects. — when following cross-origin redirects. Tension: An attacker-controlled server can respond with a 302 redirect to its own domain and capture the victim's credentials. Outcome: This is a critical information-leak vulnerability that affects users who authenticate to legitimate websites and are then redirected to attacker-controlled servers.

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