$ yarn 

$ cdk diff

$ cdk deploy

$ cdk destroy

# access the path with object existed in s3 bucket
$ curl http://<CLOUDFRONT_DOMAIN>
<h1>Hello CDK!</h1>
# access the path with object un-existed in s3 bucket
$ curl -I http://<CLOUDFRONT_DOMAIN>/123
# response with the redirect message
HTTP/2 302 
content-type: application/xml
content-length: 0
date: Fri, 22 Apr 2021 08:40:09 GMT
server: AmazonS3
location: /404.html # the custom error page defined in Lambda@Edge
x-cache: Miss from cloudfront
via: 1.1 xxx.cloudfront.net (CloudFront)
x-amz-cf-pop: SFO53-C1
x-amz-cf-id: xxx