Golang Playground

This is my exploratory tetsting for Go API & Libraries.

Reference

CORS

1. https://cmvandrevala.wordpress.com/2017/03/15/implementing-cors-with-gorilla/
2. https://www.youtube.com/watch?v=JVZIhCVFJ9c
3. https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS
4. https://fetch.spec.whatwg.org/#http-responses
5. https://fetch.spec.whatwg.org/#example-vary-origin