跨域响应头补充

lib/midware/cors.go

@@ -48,10 +48,12 @@ func Cors(next http.Handler) http.Handler {
 			// 允许请求头
 			allowHeaders := []string{
 				"Accesstoken",
+				"Content-Type",
+				"operationtype",
 			}
 			w.Header().Set("Access-Control-Allow-Headers", strings.Join(allowHeaders, ","))
 
-			w.WriteHeader(500)
+			w.WriteHeader(204)
 			return
 		}