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Tag: cors

How to Configure Server API to Receive a Request Body Using Fetch and Express JS?

I’m trying to send a JSON file from the client to the server, but when I try to do so I get the error: “No ‘Access-Control-Allow-Origin’ header is present on the requested resource”. I also get the errors “POST http://localhost:3000/ net::ERR_FAILED” and “Uncaught (in promise) TypeError: Failed to fetch at index.js:6:1”, but I’m not sure if they’re relevant or symptomatic

Strapi v4 throwing cors exception

Im new to strapi and I have downloaded strapi v4 and as front-end I use vue.js. Now I created categories and I am trying to fetch those with my vue app but I’m getting a cors error. In the documentation I see I can override the origin on the cors middleware, but I don’t know how. I’ve tried it with

Access from origin ‘’ has been blocked even though I’ve allowed

I have an app made with React, Node.js and I deployed Node backend to heroku , frontend to Netlify I know that CORS errors is related to server but no matter what I add, it just cant go through that error in the picture below. I also added proxy script to React’s package.json as “proxy”: “” And here is

Access to XMLHttpRequest at ‘http://localhost:8080/’ from origin ‘http://localhost:3000’ has been blocked by CORS policy

Full error: “Access to XMLHttpRequest at ‘http://localhost:8080/api/tutorials’ from origin ‘http://localhost:3000’ has been blocked by CORS policy: Response to preflight request doesn’t pass access control check: No ‘Access-Control-Allow-Origin’ header is present on the requested resource.” On the frontend I am using NuxtJS. I am sending a simple post request at the node server hosted on localhost:3000, but it’s giving me this

How to resolve CORS error in Fetch API js

I want to fetch json from my subdomain (File Hosting Server) , but it gets the following error: Reason: CORS request did not succeed) (Reason: CORS header ‘Access-Control-Allow-Origin’ missing my similar code: I add but don’t work. I add to code, fetch file but return response status 0 , mode: ‘opaque’. please help me. Answer CORS is configured through server-side,

Chrome Extension – Getting CORS error when trying to fetch() from background script with manifest v3

I’m getting a CORS error when I try to do a request from my Chrome Extensions’s background script. The background script is bundled with webpack. Note: If I convert manifest.json to version 2 – all works fine. But with v3 it gives Access to fetch at ‘’ from origin ‘chrome-extension://exampleid’ has been blocked by CORS policy: No ‘Access-Control-Allow-Origin’ header is