How to handle preflight CORS requests on a Go server

Question

So I\'m writing this RESTful backend in Go, which will be called with cross-site HTTP requests, i.e. from content served by another site (actually, just another port, but th

Answer 1

Well, nothing worked from me from my Vue.js application so I did this.

cors := cors.New(cors.Options{
        AllowedOrigins:   []string{"*"}, //viper.GetString("ORIGIN_ALLOWED")
        AllowedHeaders:   []string{"Content-Type, Content-Length, Accept-Encoding, X-CSRF-Token", "Authorization"},
        AllowedMethods:   []string{"GET", "PATCH", "POST", "PUT", "OPTIONS", "DELETE"},
        Debug:            true,
        AllowCredentials: true,
    })

cors.Handler(corsMiddle())

func corsMiddle() http.Handler {
    return http.HandlerFunc(func(w http.ResponseWriter, request *http.Request) {
        if request.Method == "OPTIONS" {
            w.WriteHeader(http.StatusOK)
        }
    })
}