optimize "Failed to fetch" retry case

CHANGELOG.md

@@ -1,3 +1,7 @@
+### 6.5.0
+
+- optimize "Failed to fetch" retry case
+
 ### 6.4.3
 
 - dereference timers in node.js so that the process may exit when finished

i18nextLocizeBackend.js

@@ -28,11 +28,11 @@ Object.defineProperty(exports, "__esModule", {
 exports.default = void 0;
 var _utils = require("./utils.js");
 var _request = _interopRequireDefault(require("./request.js"));
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
 function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, _toPropertyKey(descriptor.key), descriptor); } }
-function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); Object.defineProperty(Constructor, "prototype", { writable: false }); return Constructor; }
+function _classCallCheck(a, n) { if (!(a instanceof n)) throw new TypeError("Cannot call a class as a function"); }
+function _defineProperties(e, r) { for (var t = 0; t < r.length; t++) { var o = r[t]; o.enumerable = o.enumerable || !1, o.configurable = !0, "value" in o && (o.writable = !0), Object.defineProperty(e, _toPropertyKey(o.key), o); } }
+function _createClass(e, r, t) { return r && _defineProperties(e.prototype, r), t && _defineProperties(e, t), Object.defineProperty(e, "prototype", { writable: !1 }), e; }
 function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == _typeof(i) ? i : i + ""; }
 function _toPrimitive(t, r) { if ("object" != _typeof(t) || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != _typeof(i)) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
 var getDefaults = function getDefaults() {
@@ -450,11 +450,9 @@ var I18NextLocizeBackend = function () {
             resourceNotExisting: resourceNotExisting
           });
         }
-        if (!res && err && err.message && err.message.indexOf('Failed to fetch') > -1) {
-          return callback('failed loading ' + url, true, {
-            resourceNotExisting: resourceNotExisting
-          });
-        }
+        if (!res && err && err.message && (err.message.indexOf('Failed to fetch') > -1 || err.message.indexOf('failed') > -1 && err.message.indexOf('fetch') > -1)) return callback('failed loading ' + url + ': ' + err.message, true, {
+          resourceNotExisting: resourceNotExisting
+        });
         if (err) return callback(err, false);
         var ret, parseErr;
         try {