(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.i18nextHttpBackend = f()}})(function(){var define,module,exports;return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
(function (global){(function (){
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
}

if (typeof require !== 'undefined' && typeof window === 'undefined') {
  var f = fetchApi || require('cross-fetch')
  if (f.default) f = f.default
  exports.default = f
  module.exports = exports.default
}

}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"cross-fetch":5}],2:[function(require,module,exports){
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;
var _utils = require("./utils.js");
var _request = _interopRequireDefault(require("./request.js"));
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 ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; }
function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { _defineProperty(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; }
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 _defineProperty(e, r, t) { return (r = _toPropertyKey(r)) in e ? Object.defineProperty(e, r, { value: t, enumerable: !0, configurable: !0, writable: !0 }) : e[r] = t, 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() {
  return {
    loadPath: '/locales/{{lng}}/{{ns}}.json',
    addPath: '/locales/add/{{lng}}/{{ns}}',
    parse: function parse(data) {
      return JSON.parse(data);
    },
    stringify: JSON.stringify,
    parsePayload: function parsePayload(namespace, key, fallbackValue) {
      return _defineProperty({}, key, fallbackValue || '');
    },
    parseLoadPayload: function parseLoadPayload(languages, namespaces) {
      return undefined;
    },
    request: _request.default,
    reloadInterval: typeof window !== 'undefined' ? false : 60 * 60 * 1000,
    customHeaders: {},
    queryStringParams: {},
    crossDomain: false,
    withCredentials: false,
    overrideMimeType: false,
    requestOptions: {
      mode: 'cors',
      credentials: 'same-origin',
      cache: 'default'
    }
  };
};
var Backend = function () {
  function Backend(services) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    var allOptions = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    _classCallCheck(this, Backend);
    this.services = services;
    this.options = options;
    this.allOptions = allOptions;
    this.type = 'backend';
    this.init(services, options, allOptions);
  }
  return _createClass(Backend, [{
    key: "init",
    value: function init(services) {
      var _this = this;
      var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
      var allOptions = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
      this.services = services;
      this.options = _objectSpread(_objectSpread(_objectSpread({}, getDefaults()), this.options || {}), options);
      this.allOptions = allOptions;
      if (this.services && this.options.reloadInterval) {
        var timer = setInterval(function () {
          return _this.reload();
        }, this.options.reloadInterval);
        if (_typeof(timer) === 'object' && typeof timer.unref === 'function') timer.unref();
      }
    }
  }, {
    key: "readMulti",
    value: function readMulti(languages, namespaces, callback) {
      this._readAny(languages, languages, namespaces, namespaces, callback);
    }
  }, {
    key: "read",
    value: function read(language, namespace, callback) {
      this._readAny([language], language, [namespace], namespace, callback);
    }
  }, {
    key: "_readAny",
    value: function _readAny(languages, loadUrlLanguages, namespaces, loadUrlNamespaces, callback) {
      var _this2 = this;
      var loadPath = this.options.loadPath;
      if (typeof this.options.loadPath === 'function') {
        loadPath = this.options.loadPath(languages, namespaces);
      }
      loadPath = (0, _utils.makePromise)(loadPath);
      loadPath.then(function (resolvedLoadPath) {
        if (!resolvedLoadPath) return callback(null, {});
        var url = _this2.services.interpolator.interpolate(resolvedLoadPath, {
          lng: languages.join('+'),
          ns: namespaces.join('+')
        });
        _this2.loadUrl(url, callback, loadUrlLanguages, loadUrlNamespaces);
      });
    }
  }, {
    key: "loadUrl",
    value: function loadUrl(url, callback, languages, namespaces) {
      var _this3 = this;
      var lng = typeof languages === 'string' ? [languages] : languages;
      var ns = typeof namespaces === 'string' ? [namespaces] : namespaces;
      var payload = this.options.parseLoadPayload(lng, ns);
      this.options.request(this.options, url, payload, function (err, res) {
        if (res && (res.status >= 500 && res.status < 600 || !res.status)) return callback('failed loading ' + url + '; status code: ' + res.status, true);
        if (res && res.status >= 400 && res.status < 500) return callback('failed loading ' + url + '; status code: ' + res.status, false);
        if (!res && err && err.message) {
          var errorMessage = err.message.toLowerCase();
          var isNetworkError = ['failed', 'fetch', 'network', 'load'].find(function (term) {
            return errorMessage.indexOf(term) > -1;
          });
          if (isNetworkError) {
            return callback('failed loading ' + url + ': ' + err.message, true);
          }
        }
        if (err) return callback(err, false);
        var ret, parseErr;
        try {
          if (typeof res.data === 'string') {
            ret = _this3.options.parse(res.data, languages, namespaces);
          } else {
            ret = res.data;
          }
        } catch (e) {
          parseErr = 'failed parsing ' + url + ' to json';
        }
        if (parseErr) return callback(parseErr, false);
        callback(null, ret);
      });
    }
  }, {
    key: "create",
    value: function create(languages, namespace, key, fallbackValue, callback) {
      var _this4 = this;
      if (!this.options.addPath) return;
      if (typeof languages === 'string') languages = [languages];
      var payload = this.options.parsePayload(namespace, key, fallbackValue);
      var finished = 0;
      var dataArray = [];
      var resArray = [];
      languages.forEach(function (lng) {
        var addPath = _this4.options.addPath;
        if (typeof _this4.options.addPath === 'function') {
          addPath = _this4.options.addPath(lng, namespace);
        }
        var url = _this4.services.interpolator.interpolate(addPath, {
          lng: lng,
          ns: namespace
        });
        _this4.options.request(_this4.options, url, payload, function (data, res) {
          finished += 1;
          dataArray.push(data);
          resArray.push(res);
          if (finished === languages.length) {
            if (typeof callback === 'function') callback(dataArray, resArray);
          }
        });
      });
    }
  }, {
    key: "reload",
    value: function reload() {
      var _this5 = this;
      var _this$services = this.services,
        backendConnector = _this$services.backendConnector,
        languageUtils = _this$services.languageUtils,
        logger = _this$services.logger;
      var currentLanguage = backendConnector.language;
      if (currentLanguage && currentLanguage.toLowerCase() === 'cimode') return;
      var toLoad = [];
      var append = function append(lng) {
        var lngs = languageUtils.toResolveHierarchy(lng);
        lngs.forEach(function (l) {
          if (toLoad.indexOf(l) < 0) toLoad.push(l);
        });
      };
      append(currentLanguage);
      if (this.allOptions.preload) this.allOptions.preload.forEach(function (l) {
        return append(l);
      });
      toLoad.forEach(function (lng) {
        _this5.allOptions.ns.forEach(function (ns) {
          backendConnector.read(lng, ns, 'read', null, null, function (err, data) {
            if (err) logger.warn("loading namespace ".concat(ns, " for language ").concat(lng, " failed"), err);
            if (!err && data) logger.log("loaded namespace ".concat(ns, " for language ").concat(lng), data);
            backendConnector.loaded("".concat(lng, "|").concat(ns), err, data);
          });
        });
      });
    }
  }]);
}();
Backend.type = 'backend';
var _default = exports.default = Backend;
module.exports = exports.default;
},{"./request.js":3,"./utils.js":4}],3:[function(require,module,exports){
(function (global){(function (){
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;
var _utils = require("./utils.js");
var fetchNode = _interopRequireWildcard(require("./getFetch.js"));
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; }
function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; }
function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { _defineProperty(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; }
function _defineProperty(e, r, t) { return (r = _toPropertyKey(r)) in e ? Object.defineProperty(e, r, { value: t, enumerable: !0, configurable: !0, writable: !0 }) : e[r] = t, 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); }
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); }
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)()) {
  if (typeof global !== 'undefined' && global.XMLHttpRequest) {
    XmlHttpRequestApi = global.XMLHttpRequest;
  } else if (typeof window !== 'undefined' && window.XMLHttpRequest) {
    XmlHttpRequestApi = window.XMLHttpRequest;
  }
}
var ActiveXObjectApi;
if (typeof ActiveXObject === 'function') {
  if (typeof global !== 'undefined' && global.ActiveXObject) {
    ActiveXObjectApi = global.ActiveXObject;
  } else if (typeof window !== 'undefined' && window.ActiveXObject) {
    ActiveXObjectApi = window.ActiveXObject;
  }
}
if (!fetchApi && fetchNode && !XmlHttpRequestApi && !ActiveXObjectApi) fetchApi = fetchNode.default || fetchNode;
if (typeof fetchApi !== 'function') fetchApi = undefined;
var addQueryString = function addQueryString(url, params) {
  if (params && _typeof(params) === 'object') {
    var queryString = '';
    for (var paramName in params) {
      queryString += '&' + encodeURIComponent(paramName) + '=' + encodeURIComponent(params[paramName]);
    }
    if (!queryString) return url;
    url = url + (url.indexOf('?') !== -1 ? '&' : '?') + queryString.slice(1);
  }
  return url;
};
var fetchIt = function fetchIt(url, fetchOptions, callback, altFetch) {
  var resolver = function resolver(response) {
    if (!response.ok) return callback(response.statusText || 'Error', {
      status: response.status
    });
    response.text().then(function (data) {
      callback(null, {
        status: response.status,
        data: data
      });
    }).catch(callback);
  };
  if (altFetch) {
    var altResponse = altFetch(url, fetchOptions);
    if (altResponse instanceof Promise) {
      altResponse.then(resolver).catch(callback);
      return;
    }
  }
  if (typeof fetch === 'function') {
    fetch(url, fetchOptions).then(resolver).catch(callback);
  } else {
    fetchApi(url, fetchOptions).then(resolver).catch(callback);
  }
};
var omitFetchOptions = false;
var requestWithFetch = function requestWithFetch(options, url, payload, callback) {
  if (options.queryStringParams) {
    url = addQueryString(url, options.queryStringParams);
  }
  var headers = _objectSpread({}, typeof options.customHeaders === 'function' ? options.customHeaders() : options.customHeaders);
  if (typeof window === 'undefined' && typeof global !== 'undefined' && typeof global.process !== 'undefined' && global.process.versions && global.process.versions.node) {
    headers['User-Agent'] = "i18next-http-backend (node/".concat(global.process.version, "; ").concat(global.process.platform, " ").concat(global.process.arch, ")");
  }
  if (payload) headers['Content-Type'] = 'application/json';
  var reqOptions = typeof options.requestOptions === 'function' ? options.requestOptions(payload) : options.requestOptions;
  var fetchOptions = _objectSpread({
    method: payload ? 'POST' : 'GET',
    body: payload ? options.stringify(payload) : undefined,
    headers: headers
  }, omitFetchOptions ? {} : reqOptions);
  var altFetch = typeof options.alternateFetch === 'function' && options.alternateFetch.length >= 1 ? options.alternateFetch : undefined;
  try {
    fetchIt(url, fetchOptions, callback, altFetch);
  } catch (e) {
    if (!reqOptions || Object.keys(reqOptions).length === 0 || !e.message || e.message.indexOf('not implemented') < 0) {
      return callback(e);
    }
    try {
      Object.keys(reqOptions).forEach(function (opt) {
        delete fetchOptions[opt];
      });
      fetchIt(url, fetchOptions, callback, altFetch);
      omitFetchOptions = true;
    } catch (err) {
      callback(err);
    }
  }
};
var requestWithXmlHttpRequest = function requestWithXmlHttpRequest(options, url, payload, callback) {
  if (payload && _typeof(payload) === 'object') {
    payload = addQueryString('', payload).slice(1);
  }
  if (options.queryStringParams) {
    url = addQueryString(url, options.queryStringParams);
  }
  try {
    var x;
    if (XmlHttpRequestApi) {
      x = new XmlHttpRequestApi();
    } else {
      x = new ActiveXObjectApi('MSXML2.XMLHTTP.3.0');
    }
    x.open(payload ? 'POST' : 'GET', url, 1);
    if (!options.crossDomain) {
      x.setRequestHeader('X-Requested-With', 'XMLHttpRequest');
    }
    x.withCredentials = !!options.withCredentials;
    if (payload) {
      x.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
    }
    if (x.overrideMimeType) {
      x.overrideMimeType('application/json');
    }
    var h = options.customHeaders;
    h = typeof h === 'function' ? h() : h;
    if (h) {
      for (var i in h) {
        x.setRequestHeader(i, h[i]);
      }
    }
    x.onreadystatechange = function () {
      x.readyState > 3 && callback(x.status >= 400 ? x.statusText : null, {
        status: x.status,
        data: x.responseText
      });
    };
    x.send(payload);
  } catch (e) {
    console && console.log(e);
  }
};
var request = function request(options, url, payload, callback) {
  if (typeof payload === 'function') {
    callback = payload;
    payload = undefined;
  }
  callback = callback || function () {};
  if (fetchApi && url.indexOf('file:') !== 0) {
    return requestWithFetch(options, url, payload, callback);
  }
  if ((0, _utils.hasXMLHttpRequest)() || typeof ActiveXObject === 'function') {
    return requestWithXmlHttpRequest(options, url, payload, callback);
  }
  callback(new Error('No fetch and no xhr implementation found!'));
};
var _default = exports.default = request;
module.exports = exports.default;
}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./getFetch.js":1,"./utils.js":4}],4:[function(require,module,exports){
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.defaults = defaults;
exports.hasXMLHttpRequest = hasXMLHttpRequest;
exports.makePromise = makePromise;
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); }
var arr = [];
var each = arr.forEach;
var slice = arr.slice;
function defaults(obj) {
  each.call(slice.call(arguments, 1), function (source) {
    if (source) {
      for (var prop in source) {
        if (obj[prop] === undefined) obj[prop] = source[prop];
      }
    }
  });
  return obj;
}
function hasXMLHttpRequest() {
  return typeof XMLHttpRequest === 'function' || (typeof XMLHttpRequest === "undefined" ? "undefined" : _typeof(XMLHttpRequest)) === 'object';
}
function isPromise(maybePromise) {
  return !!maybePromise && typeof maybePromise.then === 'function';
}
function makePromise(maybePromise) {
  if (isPromise(maybePromise)) {
    return maybePromise;
  }
  return Promise.resolve(maybePromise);
}
},{}],5:[function(require,module,exports){

},{}]},{},[2])(2)
});