Graph/462b4826-dc94-4b21-b04f-278bd454493f

Symptomunvalidated

CORS error

462b4826-dc94-4b21-b04f-278bd454493f

CORS error

Node Details

Public graph metadata

Updated4/30/2026

PageRank0.0011

Effectiveness0.000

Connections

36 linked nodes

it seems to be failed — I tried to load Google Analytics script with next/script worker strategy. Tension: This program works correctly when I set afterInteractive to strategy field. Outcome: next/script worker strategy.

MANIFESTS_ASProblem

but there is no server rendering — I did everything according to the documentation. Tension: I have created a page.

MANIFESTS_ASProblem

Error occurred prerendering page "/post/1" — I'm trying to deploy a blog written with Next.js v15.3.3 with Vercel. Tension: TypeError: Cannot read properties of null (reading 'useState'). Outcome: Export encountered an error on /post/[slug]/page: /post/1, exiting the build.

MANIFESTS_ASProblem

Tension: the backend doesn’t seem to be serving requests, and the frontend likely fails due to a dependent API call. Outcome: The deployment succeeds (`READY` state).

MANIFESTS_ASProblem

Next.js 15 Image component is not loading from the local host but it is working in Vercel — In my code Next.js 15 Image component. Tension: The image URL also working and I have done the necessary configuration in the next.js config file. Outcome: Disable image optimization temporarily by using the unoptimized attribute.

MANIFESTS_ASProblem

502 preflight error between Vue.js frontend and Express backend

MANIFESTS_ASProblem

Access to fetch at 'https://askida-backend.vercel.app/payment/create' from origin 'https://www.asunatech.com' has been blocked by CORS policy — from origin 'https://www.asunatech.com'. Tension: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. Outcome: How can I properly resolve this CORS issue so that requests from https://www.asunatech.com to my backend are allowed?

MANIFESTS_ASProblem

works perfectly in local development — when I try to make it production-ready on Vercel. Tension: I encounter issues.

MANIFESTS_ASProblem

Setting a `sentry` property on the Next.js config is no longer supported. — [@sentry/nextjs]. Tension: Please use the `sentrySDKOptions` argument of `withSentryConfig` instead. Outcome: The Sentry SDK v8 no longer uses the `sentry` property on `nextConfig`.

MANIFESTS_ASProblem

Sentry events captured with `captureException(error)` only show a truncated message like `AxiosError: Network Error`, not the full browser console network/CORS error text seen in the developer console.

MANIFESTS_ASProblem

Sentry reports a CORS error when the Vue 3 app running on http://localhost:3000 tries to send requests to the Sentry DSN, with the browser blocking the fetch due to a missing Access-Control-Allow-Origin header.

MANIFESTS_ASRootCause

The fetch requests fail due to CORS being blocked, causing the browser/network layer to surface a generic "Load failed" TypeError on iOS.

MANIFESTS_ASProblem

Safari DevTools console shows full details, but JS code only gets "TypeError: Load failed"

MANIFESTS_ASProblem

Whisper transcription is not produced continuously from websocket audio chunks

MANIFESTS_ASProblem

it fails — The code works locally but when I put it on an EC2 machine and change the CORS origins accordingly. Tension: I've checked the URL for 2 hours straight. Outcome: Still the same error below.

MANIFESTS_ASProblem

Using Fetch from my `index.html` from my `portal.mydomain.com` does not. — Enter `api.mydomain.com` into a browser directly does save my cookie. Tension: I have no CORS errors and the OPTIONS, GET and POST requests all get a 200 response. Outcome: just no cookie, nor can I see the cookie set in my broswer dev tools.

MANIFESTS_ASProblem

axios made the requests to `http://sub.domain.tld/api/path`, while my reverse proxy forwarded that to the IP:Port

MANIFESTS_ASProblem

Uploading to LocalStack S3 from a Quarkus app fails with an UnknownHostException when interacting with the configured S3 endpoint.

MANIFESTS_ASProblem

I'm getting CORS error — I'm trying to generate s3 presigned url to upload `video/mp4` files to a bucket from react app client in development mode in my localhost. Tension: the whole thing starts working after a few hours without any changes to the setup. Outcome: the presigned url stops giving cors error.

MANIFESTS_ASProblem

I want to use a background image on my simple webpage. It's currently uploaded to S3 and distributed via Cloudfront. Tension: it displays as one would expect. Outcome: You may want to consider configuring your S3 bucket's CORS configuration to allow specific websites served from other domains to pull your image and display it.

MANIFESTS_ASProblem

I want to fetch images to display them on a local website for dev/test purposes — using the AWS JS SDK V3 on a Node web server. Tension: I want something like `img src=…` but it seems I need to pass appropriate headers to have access to the content.

MANIFESTS_ASProblem

WebSocket connection to 'wss://xxx:3500/' failed: — when connecting via WebSocket in React. Tension: but when connecting via Websocket in React, it throws always this error.

MANIFESTS_ASProblem

it seems to be failed — I tried to load Google Analytics script with next/script worker strategy. Tension: This program works correctly when I set afterInteractive to strategy field. Outcome: next/script worker strategy.

MANIFESTS_ASProblem

the cookie will be specifically set with `domain=app.sunsetland.com.au`. Tension: if we were to host another subdomain aside from `app.`, we actually would likely encounter the reCAPTCHA challenge again.

MANIFESTS_ASProblem

Considerations for CORS (Cross-Origin Resource Sharing) should be taken into account with Option 1 — Option 1 utilizes an absolute URL (https://example.com/project_folder/user) for making AJAX calls. Tension: as it may lead to restrictions when making requests to a different domain. Outcome: Option 2 is often preferred within the same domain due to reduced risks of unintended requests to other domains.

MANIFESTS_ASProblem

users can only grab jwt token if the provider of the token is public endpoint open to all — a web-app called CoolApp that accesses its server via JWT access+refresh tokens. Tension: what's stopping the user from grabbing these tokens and then creating their own CustomCoolApp? Outcome: you can setup basic CORS policies so that only your app will be whitlested and accessible to the endpoints.

MANIFESTS_ASProblem

As you only check the IP, this works and the attacker can now execute API calls against your application. — an attacker has control of a malicous site. Outcome: Defending against this requires authentication of the requests to the API.

MANIFESTS_ASSolution

You should also look into CORS (Cross-Origin Resource Sharing) and related security headers — requests made to the fastapi app can only be made by my co-workers. Outcome: Defending against this requires authentication of the requests to the API.

MANIFESTS_ASProblem

local tree (folders within folders) of PDFs and create a static HTML table of contents in the root folder — You double-click the "index.html" or open it with the browser's File > Open... Tension: No server (remote or localhost), no Javascript fetching (static links), no JQuery, no HTTP(S). Outcome: What are the standard, reliable, cross-browser links and targets that will work?

MANIFESTS_ASProblem

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.

MANIFESTS_ASProblem

this is what my WebSocketConfig.java looks like — registry.addEndpoint("/ws").withSockJS();. Tension: the CORS configuration is missing in the WebSocketConfig. Outcome: Try adding the following and attempt again.

MANIFESTS_ASProblem

it returns either an error or an empty string (just empty) to the console — when requesting from the frontend to the server. Tension: if you disable Cors in fetch(mode: "no-cors").

[inerrata]Tags Knowledge Graph Docs About Team Pricing Contact Report a Bug Privacy Terms Cookie Settings Do Not Sell or Share My Info