CORS Explained in API Design | Fix Cross-Origin Errors with Flask

Description

Learn everything you need to know about CORS (Cross-Origin Resource Sharing) in API design with Python Flask. In this tutorial, we explain why CORS errors happen, how to fix them, and how to allow or block requests from different origins. Source Code: https://github.com/turtlecode/CORS-Explained-Fix-Cross-Origin-Errors-in-Your-API-Flask-Example Whether you are building a REST API, working with frontend clients, or just starting with Flask, this step-by-step guide will help you understand CORS and avoid common cross-origin issues. In this video, you will learn: 🔸 What CORS is and why it matters for APIs 🔸 How to configure Flask-CORS in Python 🔸 How to allow or block specific origins 🔸 How to test your API from different ports Tools used in this video: 🔹 Python 3 🔹 Flask 🔹 Flask-CORS 🔹 Basic HTML & JavaScript for client requests ✅ Don’t forget to like, subscribe, and turn on notifications for more tutorials on Python, Flask, and API design.