package middleware import ( "net/http" "github.com/zenazn/goji/web" ) // Options automatically return an appropriate "Allow" header when the // request method is OPTIONS and the request would have otherwise been 404'd. func Options(c *web.C, h http.Handler) http.Handler { fn := func(w http.ResponseWriter, r *http.Request) { if r.Method == "OPTIONS" { w.Header().Set("Access-Control-Allow-Origin", "*") w.Header().Set("Access-Control-Allow-Methods", "GET,POST,PUT,DELETE,OPTIONS") w.Header().Set("Access-Control-Allow-Headers", "Authorization") w.Header().Set("Allow", "HEAD,GET,POST,PUT,DELETE,OPTIONS") w.WriteHeader(http.StatusOK) return } h.ServeHTTP(w, r) } return http.HandlerFunc(fn) }