optimize fetchApi selector

CHANGELOG.md

@@ -1,3 +1,7 @@
+### 3.0.2
+
+- optimize fetchApi selector
+
 ### 3.0.1
 
 - try to get rid of top-level await

i18nextHttpBackend.js

@@ -216,15 +216,11 @@ function _toPrimitive(t, r) { if ("object" != _typeof(t) || !t) return t; var 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 _getRequireWildcardCache(e) { if ("function" != typeof WeakMap) return null; var r = new WeakMap(), t = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(e) { return e ? t : r; })(e); }
 function _interopRequireWildcard(e, r) { if (!r && e && e.__esModule) return e; if (null === e || "object" != _typeof(e) && "function" != typeof e) return { default: e }; var t = _getRequireWildcardCache(r); if (t && t.has(e)) return t.get(e); var n = { __proto__: null }, a = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var u in e) if ("default" !== u && {}.hasOwnProperty.call(e, u)) { var i = a ? Object.getOwnPropertyDescriptor(e, u) : null; i && (i.get || i.set) ? Object.defineProperty(n, u, i) : n[u] = e[u]; } return n.default = e, t && t.set(e, n), n; }
-var fetchApi;
-if (typeof fetch === 'function') {
-  if (typeof global !== 'undefined' && global.fetch) {
-    fetchApi = global.fetch;
-  } else if (typeof window !== 'undefined' && window.fetch) {
-    fetchApi = window.fetch;
-  } else {
-    fetchApi = fetch;
-  }
+var fetchApi = typeof fetch === 'function' ? fetch : undefined;
+if (typeof global !== 'undefined' && global.fetch) {
+  fetchApi = global.fetch;
+} else if (typeof window !== 'undefined' && window.fetch) {
+  fetchApi = window.fetch;
 }
 var XmlHttpRequestApi;
 if ((0, _utils.hasXMLHttpRequest)()) {