Frontend - CORS Policy Error

[julio1927]

CORS Policy Error when fetching data from local api

Cause of error: The response to the CORS request is missing the required Access-Control-Allow-Origin header
Cross-Origin Resource Sharing (CORS) is an HTTP-header based mechanism that allows a server to indicate any other origins (domain, scheme, or port) than its own from which a browser should permit loading of resources

Temporary Fix for use of 1 api call is to use proxy "proxy": "http://localhost:54501" in package.json

https://www.youtube.com/watch?v=hxyp_LkKDdk&ab_channel=HongLy

[hyunbin7303]

@julio1927 What is the root cause of this issue?