What is CORS? Fix Blocked by CORS Policy

Learn everything about cross-origin resource sharing (CORS) and fix the blocked by CORS policy error. Specifically, we will learn about the HTTP Headers (Origin and Access-Control-Allow-Origin) involved with CORS and how to create a CORS proxy.

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⌛ Timestamps ⌛
0:00 – Introduction
0:26 – What is CORS?
0:46 – What is an Origin?
1:46 – CORS and HTTP Headers
2:06 – Origin Header
2:23 – Access-Control-Allow-Origin Header
2:38 – CORS Headers Example
3:20 – Creating a CORS Error with Node
7:10 – Fixing a CORS Error
7:31 – Fixing a CORS Error on a Server We Own
9:53 – Debugging
10:35 – Fixing a CORS Error on a Server We Don’t Own
10:49 – What is a CORS Proxy?
11:37 – Creating a CORS Proxy with Node
15:28 – CORS Proxy Security
16:15 - Outro

[codewithyemi]

Very nice tutorial. Your explanation is simple and explicit. Great job. Try to increase the volume of your audio in your subsequent videos. The audio is low. Thanks anyway. Neat.

[nauz]

This video is so helpful for me, man! Like :) Keep going!