The Gin middleware is being used if one or more Origins are specified. Default setup for each Origin is as follows:
- GET,POST, PUT, HEAD methods allowed
- Credentials share disabled
- Preflight requests cached for 12 hours
Which are the defaults gin-contrib/cors comes with out of the box.
Gin-cors will return a 403 if it gets a request with an Origin header that isn't on its' list. If no Origin header is specified then it will just return the servers response.
Start fn with CORS enabled:
`API_CORS="http://localhost:4000, http://localhost:3000" make run`
