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

Response should have, If you are using AWS lamda, set response headers as follows. Configuration on API Gateway only will not work

headers: {
            'Content-Type': 'application/json', 'Access-Control-Allow-Origin': '*',
        },