Disable Error overrides

lib/request.js

@@ -1,6 +1,7 @@
 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
 const binary_parser_1 = require("binary-parser");
+const types_1 = require("./types");
 const MAX_LABEL_SIZE = 63;
 var QueryTypes;
 (function (QueryTypes) {
@@ -152,6 +153,7 @@ class Request {
         packet.copy(bodyData, 0, 12, packet.length);
         this._header = headerParser.parse(headerData);
         this._header.AD = 0;
+        this._header.RCODE = types_1.ErrorCodes.NoError;
         this._questions = parseQuestions(this._header.QDCOUNT, bodyData);
     }
     get header() {
@@ -161,7 +163,8 @@ class Request {
         return this._questions.map(e => e);
     }
     error(error) {
-        this._header.RCODE = error;
+        if (this._header.RCODE === types_1.ErrorCodes.NoError)
+            this._header.RCODE = error;
     }
     send() {
         this.sendCallback(this.serialize());