---
title: "Discussion on \"CORS ain't that complex, Understand it in 1 min\" | Hashnode"
description: "Discussion on \"CORS ain't that complex, Understand it in 1 min\". Alright, so you’re building a cool web app. Your frontend is running on http://localhost:3000 and your backend is running on http://localhost:8000. Seems fine, right? Both are on your machine. You try to fetch some data from your backend using fetch(..."
url: "https://hashnode.com/posts/cors-aint-that-complex-understand-it-in-1-min/6803a6fec44980bc0c01e9b3"
---

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# [CORS ain't that complex, Understand it in 1 min](https://saadkhaleeq.com/cors-aint-that-complex-understand-it-in-1-min?utm_source=hashnode&utm_medium=feed)

Alright, so you’re building a cool web app. Your frontend is running on http://localhost:3000 and your backend is running on http://localhost:8000. Seems fine, right? Both are on your machine. You try to fetch some data from your backend using fetch(...

Apr 19, 2025 · 2 min read · saadkhaleeq.com  
Updated Apr 22, 2025  
Read the article

-   [#golang-cors](https://hashnode.com/tag/golang-cors)
-   [#cors-middleware](https://hashnode.com/tag/cors-middleware)
-   [#cors](https://hashnode.com/tag/cors)
-   [#cross-origin-resource-sharing-cors](https://hashnode.com/tag/cross-origin-resource-sharing-cors)

## Written by

[Saad Khaleeq](https://hashnode.com/@saadkhaleeq610)

@saadkhaleeq610 · Remote

  
[View profile](https://hashnode.com/@saadkhaleeq610)

19 | Fullstack Engineer | Golang | Typescript

Creative. Fast Learner. Super Passionate. Highly Enthusiastic.

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