AWS API Gateway endpoint gives CORS error when POST from static site on S3

Question

I have created an API endpoint with Serverless(serverless.com) which I expose through API Gateway. I\'m getting following error though I have enabled CORS from the

Answer 1

I have the this problem...I enable CORS, the Test work as it is sending the headers, but when I call it from my app it fails and no headers found on the response.

it is because after set CORS you have to DEPLOY the API. I Deplyed the API and everything works great.