Grabbed dndbeyond's source code

```
~/go/bin/sourcemapper -output ddb -jsurl https://media.dndbeyond.com/character-app/static/js/main.90aa78c5.js
```

ddb_main/node_modules/axios/index.js

@@ -0,0 +1 @@
+module.exports = require('./lib/axios');

ddb_main/node_modules/axios/lib/adapters/xhr.js

@@ -0,0 +1,212 @@
+'use strict';
+
+var utils = require('./../utils');
+var settle = require('./../core/settle');
+var cookies = require('./../helpers/cookies');
+var buildURL = require('./../helpers/buildURL');
+var buildFullPath = require('../core/buildFullPath');
+var parseHeaders = require('./../helpers/parseHeaders');
+var isURLSameOrigin = require('./../helpers/isURLSameOrigin');
+var createError = require('../core/createError');
+var transitionalDefaults = require('../defaults/transitional');
+var Cancel = require('../cancel/Cancel');
+
+module.exports = function xhrAdapter(config) {
+  return new Promise(function dispatchXhrRequest(resolve, reject) {
+    var requestData = config.data;
+    var requestHeaders = config.headers;
+    var responseType = config.responseType;
+    var onCanceled;
+    function done() {
+      if (config.cancelToken) {
+        config.cancelToken.unsubscribe(onCanceled);
+      }
+
+      if (config.signal) {
+        config.signal.removeEventListener('abort', onCanceled);
+      }
+    }
+
+    if (utils.isFormData(requestData)) {
+      delete requestHeaders['Content-Type']; // Let the browser set it
+    }
+
+    var request = new XMLHttpRequest();
+
+    // HTTP basic authentication
+    if (config.auth) {
+      var username = config.auth.username || '';
+      var password = config.auth.password ? unescape(encodeURIComponent(config.auth.password)) : '';
+      requestHeaders.Authorization = 'Basic ' + btoa(username + ':' + password);
+    }
+
+    var fullPath = buildFullPath(config.baseURL, config.url);
+    request.open(config.method.toUpperCase(), buildURL(fullPath, config.params, config.paramsSerializer), true);
+
+    // Set the request timeout in MS
+    request.timeout = config.timeout;
+
+    function onloadend() {
+      if (!request) {
+        return;
+      }
+      // Prepare the response
+      var responseHeaders = 'getAllResponseHeaders' in request ? parseHeaders(request.getAllResponseHeaders()) : null;
+      var responseData = !responseType || responseType === 'text' ||  responseType === 'json' ?
+        request.responseText : request.response;
+      var response = {
+        data: responseData,
+        status: request.status,
+        statusText: request.statusText,
+        headers: responseHeaders,
+        config: config,
+        request: request
+      };
+
+      settle(function _resolve(value) {
+        resolve(value);
+        done();
+      }, function _reject(err) {
+        reject(err);
+        done();
+      }, response);
+
+      // Clean up request
+      request = null;
+    }
+
+    if ('onloadend' in request) {
+      // Use onloadend if available
+      request.onloadend = onloadend;
+    } else {
+      // Listen for ready state to emulate onloadend
+      request.onreadystatechange = function handleLoad() {
+        if (!request || request.readyState !== 4) {
+          return;
+        }
+
+        // The request errored out and we didn't get a response, this will be
+        // handled by onerror instead
+        // With one exception: request that using file: protocol, most browsers
+        // will return status as 0 even though it's a successful request
+        if (request.status === 0 && !(request.responseURL && request.responseURL.indexOf('file:') === 0)) {
+          return;
+        }
+        // readystate handler is calling before onerror or ontimeout handlers,
+        // so we should call onloadend on the next 'tick'
+        setTimeout(onloadend);
+      };
+    }
+
+    // Handle browser request cancellation (as opposed to a manual cancellation)
+    request.onabort = function handleAbort() {
+      if (!request) {
+        return;
+      }
+
+      reject(createError('Request aborted', config, 'ECONNABORTED', request));
+
+      // Clean up request
+      request = null;
+    };
+
+    // Handle low level network errors
+    request.onerror = function handleError() {
+      // Real errors are hidden from us by the browser
+      // onerror should only fire if it's a network error
+      reject(createError('Network Error', config, null, request));
+
+      // Clean up request
+      request = null;
+    };
+
+    // Handle timeout
+    request.ontimeout = function handleTimeout() {
+      var timeoutErrorMessage = config.timeout ? 'timeout of ' + config.timeout + 'ms exceeded' : 'timeout exceeded';
+      var transitional = config.transitional || transitionalDefaults;
+      if (config.timeoutErrorMessage) {
+        timeoutErrorMessage = config.timeoutErrorMessage;
+      }
+      reject(createError(
+        timeoutErrorMessage,
+        config,
+        transitional.clarifyTimeoutError ? 'ETIMEDOUT' : 'ECONNABORTED',
+        request));
+
+      // Clean up request
+      request = null;
+    };
+
+    // Add xsrf header
+    // This is only done if running in a standard browser environment.
+    // Specifically not if we're in a web worker, or react-native.
+    if (utils.isStandardBrowserEnv()) {
+      // Add xsrf header
+      var xsrfValue = (config.withCredentials || isURLSameOrigin(fullPath)) && config.xsrfCookieName ?
+        cookies.read(config.xsrfCookieName) :
+        undefined;
+
+      if (xsrfValue) {
+        requestHeaders[config.xsrfHeaderName] = xsrfValue;
+      }
+    }
+
+    // Add headers to the request
+    if ('setRequestHeader' in request) {
+      utils.forEach(requestHeaders, function setRequestHeader(val, key) {
+        if (typeof requestData === 'undefined' && key.toLowerCase() === 'content-type') {
+          // Remove Content-Type if data is undefined
+          delete requestHeaders[key];
+        } else {
+          // Otherwise add header to the request
+          request.setRequestHeader(key, val);
+        }
+      });
+    }
+
+    // Add withCredentials to request if needed
+    if (!utils.isUndefined(config.withCredentials)) {
+      request.withCredentials = !!config.withCredentials;
+    }
+
+    // Add responseType to request if needed
+    if (responseType && responseType !== 'json') {
+      request.responseType = config.responseType;
+    }
+
+    // Handle progress if needed
+    if (typeof config.onDownloadProgress === 'function') {
+      request.addEventListener('progress', config.onDownloadProgress);
+    }
+
+    // Not all browsers support upload events
+    if (typeof config.onUploadProgress === 'function' && request.upload) {
+      request.upload.addEventListener('progress', config.onUploadProgress);
+    }
+
+    if (config.cancelToken || config.signal) {
+      // Handle cancellation
+      // eslint-disable-next-line func-names
+      onCanceled = function(cancel) {
+        if (!request) {
+          return;
+        }
+        reject(!cancel || (cancel && cancel.type) ? new Cancel('canceled') : cancel);
+        request.abort();
+        request = null;
+      };
+
+      config.cancelToken && config.cancelToken.subscribe(onCanceled);
+      if (config.signal) {
+        config.signal.aborted ? onCanceled() : config.signal.addEventListener('abort', onCanceled);
+      }
+    }
+
+    if (!requestData) {
+      requestData = null;
+    }
+
+    // Send the request
+    request.send(requestData);
+  });
+};

ddb_main/node_modules/axios/lib/axios.js

@@ -0,0 +1,57 @@
+'use strict';
+
+var utils = require('./utils');
+var bind = require('./helpers/bind');
+var Axios = require('./core/Axios');
+var mergeConfig = require('./core/mergeConfig');
+var defaults = require('./defaults');
+
+/**
+ * Create an instance of Axios
+ *
+ * @param {Object} defaultConfig The default config for the instance
+ * @return {Axios} A new instance of Axios
+ */
+function createInstance(defaultConfig) {
+  var context = new Axios(defaultConfig);
+  var instance = bind(Axios.prototype.request, context);
+
+  // Copy axios.prototype to instance
+  utils.extend(instance, Axios.prototype, context);
+
+  // Copy context to instance
+  utils.extend(instance, context);
+
+  // Factory for creating new instances
+  instance.create = function create(instanceConfig) {
+    return createInstance(mergeConfig(defaultConfig, instanceConfig));
+  };
+
+  return instance;
+}
+
+// Create the default instance to be exported
+var axios = createInstance(defaults);
+
+// Expose Axios class to allow class inheritance
+axios.Axios = Axios;
+
+// Expose Cancel & CancelToken
+axios.Cancel = require('./cancel/Cancel');
+axios.CancelToken = require('./cancel/CancelToken');
+axios.isCancel = require('./cancel/isCancel');
+axios.VERSION = require('./env/data').version;
+
+// Expose all/spread
+axios.all = function all(promises) {
+  return Promise.all(promises);
+};
+axios.spread = require('./helpers/spread');
+
+// Expose isAxiosError
+axios.isAxiosError = require('./helpers/isAxiosError');
+
+module.exports = axios;
+
+// Allow use of default import syntax in TypeScript
+module.exports.default = axios;

ddb_main/node_modules/axios/lib/cancel/Cancel.js

@@ -0,0 +1,19 @@
+'use strict';
+
+/**
+ * A `Cancel` is an object that is thrown when an operation is canceled.
+ *
+ * @class
+ * @param {string=} message The message.
+ */
+function Cancel(message) {
+  this.message = message;
+}
+
+Cancel.prototype.toString = function toString() {
+  return 'Cancel' + (this.message ? ': ' + this.message : '');
+};
+
+Cancel.prototype.__CANCEL__ = true;
+
+module.exports = Cancel;

ddb_main/node_modules/axios/lib/cancel/CancelToken.js

@@ -0,0 +1,119 @@
+'use strict';
+
+var Cancel = require('./Cancel');
+
+/**
+ * A `CancelToken` is an object that can be used to request cancellation of an operation.
+ *
+ * @class
+ * @param {Function} executor The executor function.
+ */
+function CancelToken(executor) {
+  if (typeof executor !== 'function') {
+    throw new TypeError('executor must be a function.');
+  }
+
+  var resolvePromise;
+
+  this.promise = new Promise(function promiseExecutor(resolve) {
+    resolvePromise = resolve;
+  });
+
+  var token = this;
+
+  // eslint-disable-next-line func-names
+  this.promise.then(function(cancel) {
+    if (!token._listeners) return;
+
+    var i;
+    var l = token._listeners.length;
+
+    for (i = 0; i < l; i++) {
+      token._listeners[i](cancel);
+    }
+    token._listeners = null;
+  });
+
+  // eslint-disable-next-line func-names
+  this.promise.then = function(onfulfilled) {
+    var _resolve;
+    // eslint-disable-next-line func-names
+    var promise = new Promise(function(resolve) {
+      token.subscribe(resolve);
+      _resolve = resolve;
+    }).then(onfulfilled);
+
+    promise.cancel = function reject() {
+      token.unsubscribe(_resolve);
+    };
+
+    return promise;
+  };
+
+  executor(function cancel(message) {
+    if (token.reason) {
+      // Cancellation has already been requested
+      return;
+    }
+
+    token.reason = new Cancel(message);
+    resolvePromise(token.reason);
+  });
+}
+
+/**
+ * Throws a `Cancel` if cancellation has been requested.
+ */
+CancelToken.prototype.throwIfRequested = function throwIfRequested() {
+  if (this.reason) {
+    throw this.reason;
+  }
+};
+
+/**
+ * Subscribe to the cancel signal
+ */
+
+CancelToken.prototype.subscribe = function subscribe(listener) {
+  if (this.reason) {
+    listener(this.reason);
+    return;
+  }
+
+  if (this._listeners) {
+    this._listeners.push(listener);
+  } else {
+    this._listeners = [listener];
+  }
+};
+
+/**
+ * Unsubscribe from the cancel signal
+ */
+
+CancelToken.prototype.unsubscribe = function unsubscribe(listener) {
+  if (!this._listeners) {
+    return;
+  }
+  var index = this._listeners.indexOf(listener);
+  if (index !== -1) {
+    this._listeners.splice(index, 1);
+  }
+};
+
+/**
+ * Returns an object that contains a new `CancelToken` and a function that, when called,
+ * cancels the `CancelToken`.
+ */
+CancelToken.source = function source() {
+  var cancel;
+  var token = new CancelToken(function executor(c) {
+    cancel = c;
+  });
+  return {
+    token: token,
+    cancel: cancel
+  };
+};
+
+module.exports = CancelToken;

ddb_main/node_modules/axios/lib/cancel/isCancel.js

@@ -0,0 +1,5 @@
+'use strict';
+
+module.exports = function isCancel(value) {
+  return !!(value && value.__CANCEL__);
+};

ddb_main/node_modules/axios/lib/core/Axios.js

@@ -0,0 +1,148 @@
+'use strict';
+
+var utils = require('./../utils');
+var buildURL = require('../helpers/buildURL');
+var InterceptorManager = require('./InterceptorManager');
+var dispatchRequest = require('./dispatchRequest');
+var mergeConfig = require('./mergeConfig');
+var validator = require('../helpers/validator');
+
+var validators = validator.validators;
+/**
+ * Create a new instance of Axios
+ *
+ * @param {Object} instanceConfig The default config for the instance
+ */
+function Axios(instanceConfig) {
+  this.defaults = instanceConfig;
+  this.interceptors = {
+    request: new InterceptorManager(),
+    response: new InterceptorManager()
+  };
+}
+
+/**
+ * Dispatch a request
+ *
+ * @param {Object} config The config specific for this request (merged with this.defaults)
+ */
+Axios.prototype.request = function request(configOrUrl, config) {
+  /*eslint no-param-reassign:0*/
+  // Allow for axios('example/url'[, config]) a la fetch API
+  if (typeof configOrUrl === 'string') {
+    config = config || {};
+    config.url = configOrUrl;
+  } else {
+    config = configOrUrl || {};
+  }
+
+  config = mergeConfig(this.defaults, config);
+
+  // Set config.method
+  if (config.method) {
+    config.method = config.method.toLowerCase();
+  } else if (this.defaults.method) {
+    config.method = this.defaults.method.toLowerCase();
+  } else {
+    config.method = 'get';
+  }
+
+  var transitional = config.transitional;
+
+  if (transitional !== undefined) {
+    validator.assertOptions(transitional, {
+      silentJSONParsing: validators.transitional(validators.boolean),
+      forcedJSONParsing: validators.transitional(validators.boolean),
+      clarifyTimeoutError: validators.transitional(validators.boolean)
+    }, false);
+  }
+
+  // filter out skipped interceptors
+  var requestInterceptorChain = [];
+  var synchronousRequestInterceptors = true;
+  this.interceptors.request.forEach(function unshiftRequestInterceptors(interceptor) {
+    if (typeof interceptor.runWhen === 'function' && interceptor.runWhen(config) === false) {
+      return;
+    }
+
+    synchronousRequestInterceptors = synchronousRequestInterceptors && interceptor.synchronous;
+
+    requestInterceptorChain.unshift(interceptor.fulfilled, interceptor.rejected);
+  });
+
+  var responseInterceptorChain = [];
+  this.interceptors.response.forEach(function pushResponseInterceptors(interceptor) {
+    responseInterceptorChain.push(interceptor.fulfilled, interceptor.rejected);
+  });
+
+  var promise;
+
+  if (!synchronousRequestInterceptors) {
+    var chain = [dispatchRequest, undefined];
+
+    Array.prototype.unshift.apply(chain, requestInterceptorChain);
+    chain = chain.concat(responseInterceptorChain);
+
+    promise = Promise.resolve(config);
+    while (chain.length) {
+      promise = promise.then(chain.shift(), chain.shift());
+    }
+
+    return promise;
+  }
+
+
+  var newConfig = config;
+  while (requestInterceptorChain.length) {
+    var onFulfilled = requestInterceptorChain.shift();
+    var onRejected = requestInterceptorChain.shift();
+    try {
+      newConfig = onFulfilled(newConfig);
+    } catch (error) {
+      onRejected(error);
+      break;
+    }
+  }
+
+  try {
+    promise = dispatchRequest(newConfig);
+  } catch (error) {
+    return Promise.reject(error);
+  }
+
+  while (responseInterceptorChain.length) {
+    promise = promise.then(responseInterceptorChain.shift(), responseInterceptorChain.shift());
+  }
+
+  return promise;
+};
+
+Axios.prototype.getUri = function getUri(config) {
+  config = mergeConfig(this.defaults, config);
+  return buildURL(config.url, config.params, config.paramsSerializer).replace(/^\?/, '');
+};
+
+// Provide aliases for supported request methods
+utils.forEach(['delete', 'get', 'head', 'options'], function forEachMethodNoData(method) {
+  /*eslint func-names:0*/
+  Axios.prototype[method] = function(url, config) {
+    return this.request(mergeConfig(config || {}, {
+      method: method,
+      url: url,
+      data: (config || {}).data
+    }));
+  };
+});
+
+utils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {
+  /*eslint func-names:0*/
+  Axios.prototype[method] = function(url, data, config) {
+    return this.request(mergeConfig(config || {}, {
+      method: method,
+      url: url,
+      data: data
+    }));
+  };
+});
+
+module.exports = Axios;

ddb_main/node_modules/axios/lib/core/InterceptorManager.js

@@ -0,0 +1,54 @@
+'use strict';
+
+var utils = require('./../utils');
+
+function InterceptorManager() {
+  this.handlers = [];
+}
+
+/**
+ * Add a new interceptor to the stack
+ *
+ * @param {Function} fulfilled The function to handle `then` for a `Promise`
+ * @param {Function} rejected The function to handle `reject` for a `Promise`
+ *
+ * @return {Number} An ID used to remove interceptor later
+ */
+InterceptorManager.prototype.use = function use(fulfilled, rejected, options) {
+  this.handlers.push({
+    fulfilled: fulfilled,
+    rejected: rejected,
+    synchronous: options ? options.synchronous : false,
+    runWhen: options ? options.runWhen : null
+  });
+  return this.handlers.length - 1;
+};
+
+/**
+ * Remove an interceptor from the stack
+ *
+ * @param {Number} id The ID that was returned by `use`
+ */
+InterceptorManager.prototype.eject = function eject(id) {
+  if (this.handlers[id]) {
+    this.handlers[id] = null;
+  }
+};
+
+/**
+ * Iterate over all the registered interceptors
+ *
+ * This method is particularly useful for skipping over any
+ * interceptors that may have become `null` calling `eject`.
+ *
+ * @param {Function} fn The function to call for each interceptor
+ */
+InterceptorManager.prototype.forEach = function forEach(fn) {
+  utils.forEach(this.handlers, function forEachHandler(h) {
+    if (h !== null) {
+      fn(h);
+    }
+  });
+};
+
+module.exports = InterceptorManager;

ddb_main/node_modules/axios/lib/core/buildFullPath.js

@@ -0,0 +1,20 @@
+'use strict';
+
+var isAbsoluteURL = require('../helpers/isAbsoluteURL');
+var combineURLs = require('../helpers/combineURLs');
+
+/**
+ * Creates a new URL by combining the baseURL with the requestedURL,
+ * only when the requestedURL is not already an absolute URL.
+ * If the requestURL is absolute, this function returns the requestedURL untouched.
+ *
+ * @param {string} baseURL The base URL
+ * @param {string} requestedURL Absolute or relative URL to combine
+ * @returns {string} The combined full path
+ */
+module.exports = function buildFullPath(baseURL, requestedURL) {
+  if (baseURL && !isAbsoluteURL(requestedURL)) {
+    return combineURLs(baseURL, requestedURL);
+  }
+  return requestedURL;
+};

ddb_main/node_modules/axios/lib/core/createError.js

@@ -0,0 +1,18 @@
+'use strict';
+
+var enhanceError = require('./enhanceError');
+
+/**
+ * Create an Error with the specified message, config, error code, request and response.
+ *
+ * @param {string} message The error message.
+ * @param {Object} config The config.
+ * @param {string} [code] The error code (for example, 'ECONNABORTED').
+ * @param {Object} [request] The request.
+ * @param {Object} [response] The response.
+ * @returns {Error} The created error.
+ */
+module.exports = function createError(message, config, code, request, response) {
+  var error = new Error(message);
+  return enhanceError(error, config, code, request, response);
+};

ddb_main/node_modules/axios/lib/core/dispatchRequest.js

@@ -0,0 +1,87 @@
+'use strict';
+
+var utils = require('./../utils');
+var transformData = require('./transformData');
+var isCancel = require('../cancel/isCancel');
+var defaults = require('../defaults');
+var Cancel = require('../cancel/Cancel');
+
+/**
+ * Throws a `Cancel` if cancellation has been requested.
+ */
+function throwIfCancellationRequested(config) {
+  if (config.cancelToken) {
+    config.cancelToken.throwIfRequested();
+  }
+
+  if (config.signal && config.signal.aborted) {
+    throw new Cancel('canceled');
+  }
+}
+
+/**
+ * Dispatch a request to the server using the configured adapter.
+ *
+ * @param {object} config The config that is to be used for the request
+ * @returns {Promise} The Promise to be fulfilled
+ */
+module.exports = function dispatchRequest(config) {
+  throwIfCancellationRequested(config);
+
+  // Ensure headers exist
+  config.headers = config.headers || {};
+
+  // Transform request data
+  config.data = transformData.call(
+    config,
+    config.data,
+    config.headers,
+    config.transformRequest
+  );
+
+  // Flatten headers
+  config.headers = utils.merge(
+    config.headers.common || {},
+    config.headers[config.method] || {},
+    config.headers
+  );
+
+  utils.forEach(
+    ['delete', 'get', 'head', 'post', 'put', 'patch', 'common'],
+    function cleanHeaderConfig(method) {
+      delete config.headers[method];
+    }
+  );
+
+  var adapter = config.adapter || defaults.adapter;
+
+  return adapter(config).then(function onAdapterResolution(response) {
+    throwIfCancellationRequested(config);
+
+    // Transform response data
+    response.data = transformData.call(
+      config,
+      response.data,
+      response.headers,
+      config.transformResponse
+    );
+
+    return response;
+  }, function onAdapterRejection(reason) {
+    if (!isCancel(reason)) {
+      throwIfCancellationRequested(config);
+
+      // Transform response data
+      if (reason && reason.response) {
+        reason.response.data = transformData.call(
+          config,
+          reason.response.data,
+          reason.response.headers,
+          config.transformResponse
+        );
+      }
+    }
+
+    return Promise.reject(reason);
+  });
+};

ddb_main/node_modules/axios/lib/core/enhanceError.js

@@ -0,0 +1,43 @@
+'use strict';
+
+/**
+ * Update an Error with the specified config, error code, and response.
+ *
+ * @param {Error} error The error to update.
+ * @param {Object} config The config.
+ * @param {string} [code] The error code (for example, 'ECONNABORTED').
+ * @param {Object} [request] The request.
+ * @param {Object} [response] The response.
+ * @returns {Error} The error.
+ */
+module.exports = function enhanceError(error, config, code, request, response) {
+  error.config = config;
+  if (code) {
+    error.code = code;
+  }
+
+  error.request = request;
+  error.response = response;
+  error.isAxiosError = true;
+
+  error.toJSON = function toJSON() {
+    return {
+      // Standard
+      message: this.message,
+      name: this.name,
+      // Microsoft
+      description: this.description,
+      number: this.number,
+      // Mozilla
+      fileName: this.fileName,
+      lineNumber: this.lineNumber,
+      columnNumber: this.columnNumber,
+      stack: this.stack,
+      // Axios
+      config: this.config,
+      code: this.code,
+      status: this.response && this.response.status ? this.response.status : null
+    };
+  };
+  return error;
+};

ddb_main/node_modules/axios/lib/core/mergeConfig.js

@@ -0,0 +1,99 @@
+'use strict';
+
+var utils = require('../utils');
+
+/**
+ * Config-specific merge-function which creates a new config-object
+ * by merging two configuration objects together.
+ *
+ * @param {Object} config1
+ * @param {Object} config2
+ * @returns {Object} New object resulting from merging config2 to config1
+ */
+module.exports = function mergeConfig(config1, config2) {
+  // eslint-disable-next-line no-param-reassign
+  config2 = config2 || {};
+  var config = {};
+
+  function getMergedValue(target, source) {
+    if (utils.isPlainObject(target) && utils.isPlainObject(source)) {
+      return utils.merge(target, source);
+    } else if (utils.isPlainObject(source)) {
+      return utils.merge({}, source);
+    } else if (utils.isArray(source)) {
+      return source.slice();
+    }
+    return source;
+  }
+
+  // eslint-disable-next-line consistent-return
+  function mergeDeepProperties(prop) {
+    if (!utils.isUndefined(config2[prop])) {
+      return getMergedValue(config1[prop], config2[prop]);
+    } else if (!utils.isUndefined(config1[prop])) {
+      return getMergedValue(undefined, config1[prop]);
+    }
+  }
+
+  // eslint-disable-next-line consistent-return
+  function valueFromConfig2(prop) {
+    if (!utils.isUndefined(config2[prop])) {
+      return getMergedValue(undefined, config2[prop]);
+    }
+  }
+
+  // eslint-disable-next-line consistent-return
+  function defaultToConfig2(prop) {
+    if (!utils.isUndefined(config2[prop])) {
+      return getMergedValue(undefined, config2[prop]);
+    } else if (!utils.isUndefined(config1[prop])) {
+      return getMergedValue(undefined, config1[prop]);
+    }
+  }
+
+  // eslint-disable-next-line consistent-return
+  function mergeDirectKeys(prop) {
+    if (prop in config2) {
+      return getMergedValue(config1[prop], config2[prop]);
+    } else if (prop in config1) {
+      return getMergedValue(undefined, config1[prop]);
+    }
+  }
+
+  var mergeMap = {
+    'url': valueFromConfig2,
+    'method': valueFromConfig2,
+    'data': valueFromConfig2,
+    'baseURL': defaultToConfig2,
+    'transformRequest': defaultToConfig2,
+    'transformResponse': defaultToConfig2,
+    'paramsSerializer': defaultToConfig2,
+    'timeout': defaultToConfig2,
+    'timeoutMessage': defaultToConfig2,
+    'withCredentials': defaultToConfig2,
+    'adapter': defaultToConfig2,
+    'responseType': defaultToConfig2,
+    'xsrfCookieName': defaultToConfig2,
+    'xsrfHeaderName': defaultToConfig2,
+    'onUploadProgress': defaultToConfig2,
+    'onDownloadProgress': defaultToConfig2,
+    'decompress': defaultToConfig2,
+    'maxContentLength': defaultToConfig2,
+    'maxBodyLength': defaultToConfig2,
+    'transport': defaultToConfig2,
+    'httpAgent': defaultToConfig2,
+    'httpsAgent': defaultToConfig2,
+    'cancelToken': defaultToConfig2,
+    'socketPath': defaultToConfig2,
+    'responseEncoding': defaultToConfig2,
+    'validateStatus': mergeDirectKeys
+  };
+
+  utils.forEach(Object.keys(config1).concat(Object.keys(config2)), function computeConfigValue(prop) {
+    var merge = mergeMap[prop] || mergeDeepProperties;
+    var configValue = merge(prop);
+    (utils.isUndefined(configValue) && merge !== mergeDirectKeys) || (config[prop] = configValue);
+  });
+
+  return config;
+};

ddb_main/node_modules/axios/lib/core/settle.js

@@ -0,0 +1,25 @@
+'use strict';
+
+var createError = require('./createError');
+
+/**
+ * Resolve or reject a Promise based on response status.
+ *
+ * @param {Function} resolve A function that resolves the promise.
+ * @param {Function} reject A function that rejects the promise.
+ * @param {object} response The response.
+ */
+module.exports = function settle(resolve, reject, response) {
+  var validateStatus = response.config.validateStatus;
+  if (!response.status || !validateStatus || validateStatus(response.status)) {
+    resolve(response);
+  } else {
+    reject(createError(
+      'Request failed with status code ' + response.status,
+      response.config,
+      null,
+      response.request,
+      response
+    ));
+  }
+};

ddb_main/node_modules/axios/lib/core/transformData.js

@@ -0,0 +1,22 @@
+'use strict';
+
+var utils = require('./../utils');
+var defaults = require('../defaults');
+
+/**
+ * Transform the data for a request or a response
+ *
+ * @param {Object|String} data The data to be transformed
+ * @param {Array} headers The headers for the request or response
+ * @param {Array|Function} fns A single function or Array of functions
+ * @returns {*} The resulting transformed data
+ */
+module.exports = function transformData(data, headers, fns) {
+  var context = this || defaults;
+  /*eslint no-param-reassign:0*/
+  utils.forEach(fns, function transform(fn) {
+    data = fn.call(context, data, headers);
+  });
+
+  return data;
+};

ddb_main/node_modules/axios/lib/defaults/index.js

@@ -0,0 +1,131 @@
+'use strict';
+
+var utils = require('../utils');
+var normalizeHeaderName = require('../helpers/normalizeHeaderName');
+var enhanceError = require('../core/enhanceError');
+var transitionalDefaults = require('./transitional');
+
+var DEFAULT_CONTENT_TYPE = {
+  'Content-Type': 'application/x-www-form-urlencoded'
+};
+
+function setContentTypeIfUnset(headers, value) {
+  if (!utils.isUndefined(headers) && utils.isUndefined(headers['Content-Type'])) {
+    headers['Content-Type'] = value;
+  }
+}
+
+function getDefaultAdapter() {
+  var adapter;
+  if (typeof XMLHttpRequest !== 'undefined') {
+    // For browsers use XHR adapter
+    adapter = require('../adapters/xhr');
+  } else if (typeof process !== 'undefined' && Object.prototype.toString.call(process) === '[object process]') {
+    // For node use HTTP adapter
+    adapter = require('../adapters/http');
+  }
+  return adapter;
+}
+
+function stringifySafely(rawValue, parser, encoder) {
+  if (utils.isString(rawValue)) {
+    try {
+      (parser || JSON.parse)(rawValue);
+      return utils.trim(rawValue);
+    } catch (e) {
+      if (e.name !== 'SyntaxError') {
+        throw e;
+      }
+    }
+  }
+
+  return (encoder || JSON.stringify)(rawValue);
+}
+
+var defaults = {
+
+  transitional: transitionalDefaults,
+
+  adapter: getDefaultAdapter(),
+
+  transformRequest: [function transformRequest(data, headers) {
+    normalizeHeaderName(headers, 'Accept');
+    normalizeHeaderName(headers, 'Content-Type');
+
+    if (utils.isFormData(data) ||
+      utils.isArrayBuffer(data) ||
+      utils.isBuffer(data) ||
+      utils.isStream(data) ||
+      utils.isFile(data) ||
+      utils.isBlob(data)
+    ) {
+      return data;
+    }
+    if (utils.isArrayBufferView(data)) {
+      return data.buffer;
+    }
+    if (utils.isURLSearchParams(data)) {
+      setContentTypeIfUnset(headers, 'application/x-www-form-urlencoded;charset=utf-8');
+      return data.toString();
+    }
+    if (utils.isObject(data) || (headers && headers['Content-Type'] === 'application/json')) {
+      setContentTypeIfUnset(headers, 'application/json');
+      return stringifySafely(data);
+    }
+    return data;
+  }],
+
+  transformResponse: [function transformResponse(data) {
+    var transitional = this.transitional || defaults.transitional;
+    var silentJSONParsing = transitional && transitional.silentJSONParsing;
+    var forcedJSONParsing = transitional && transitional.forcedJSONParsing;
+    var strictJSONParsing = !silentJSONParsing && this.responseType === 'json';
+
+    if (strictJSONParsing || (forcedJSONParsing && utils.isString(data) && data.length)) {
+      try {
+        return JSON.parse(data);
+      } catch (e) {
+        if (strictJSONParsing) {
+          if (e.name === 'SyntaxError') {
+            throw enhanceError(e, this, 'E_JSON_PARSE');
+          }
+          throw e;
+        }
+      }
+    }
+
+    return data;
+  }],
+
+  /**
+   * A timeout in milliseconds to abort a request. If set to 0 (default) a
+   * timeout is not created.
+   */
+  timeout: 0,
+
+  xsrfCookieName: 'XSRF-TOKEN',
+  xsrfHeaderName: 'X-XSRF-TOKEN',
+
+  maxContentLength: -1,
+  maxBodyLength: -1,
+
+  validateStatus: function validateStatus(status) {
+    return status >= 200 && status < 300;
+  },
+
+  headers: {
+    common: {
+      'Accept': 'application/json, text/plain, */*'
+    }
+  }
+};
+
+utils.forEach(['delete', 'get', 'head'], function forEachMethodNoData(method) {
+  defaults.headers[method] = {};
+});
+
+utils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {
+  defaults.headers[method] = utils.merge(DEFAULT_CONTENT_TYPE);
+});
+
+module.exports = defaults;

ddb_main/node_modules/axios/lib/defaults/transitional.js

@@ -0,0 +1,7 @@
+'use strict';
+
+module.exports = {
+  silentJSONParsing: true,
+  forcedJSONParsing: true,
+  clarifyTimeoutError: false
+};

ddb_main/node_modules/axios/lib/env/data.js

@@ -0,0 +1,3 @@
+module.exports = {
+  "version": "0.26.1"
+};

ddb_main/node_modules/axios/lib/helpers/bind.js

@@ -0,0 +1,11 @@
+'use strict';
+
+module.exports = function bind(fn, thisArg) {
+  return function wrap() {
+    var args = new Array(arguments.length);
+    for (var i = 0; i < args.length; i++) {
+      args[i] = arguments[i];
+    }
+    return fn.apply(thisArg, args);
+  };
+};

ddb_main/node_modules/axios/lib/helpers/buildURL.js

@@ -0,0 +1,70 @@
+'use strict';
+
+var utils = require('./../utils');
+
+function encode(val) {
+  return encodeURIComponent(val).
+    replace(/%3A/gi, ':').
+    replace(/%24/g, '$').
+    replace(/%2C/gi, ',').
+    replace(/%20/g, '+').
+    replace(/%5B/gi, '[').
+    replace(/%5D/gi, ']');
+}
+
+/**
+ * Build a URL by appending params to the end
+ *
+ * @param {string} url The base of the url (e.g., http://www.google.com)
+ * @param {object} [params] The params to be appended
+ * @returns {string} The formatted url
+ */
+module.exports = function buildURL(url, params, paramsSerializer) {
+  /*eslint no-param-reassign:0*/
+  if (!params) {
+    return url;
+  }
+
+  var serializedParams;
+  if (paramsSerializer) {
+    serializedParams = paramsSerializer(params);
+  } else if (utils.isURLSearchParams(params)) {
+    serializedParams = params.toString();
+  } else {
+    var parts = [];
+
+    utils.forEach(params, function serialize(val, key) {
+      if (val === null || typeof val === 'undefined') {
+        return;
+      }
+
+      if (utils.isArray(val)) {
+        key = key + '[]';
+      } else {
+        val = [val];
+      }
+
+      utils.forEach(val, function parseValue(v) {
+        if (utils.isDate(v)) {
+          v = v.toISOString();
+        } else if (utils.isObject(v)) {
+          v = JSON.stringify(v);
+        }
+        parts.push(encode(key) + '=' + encode(v));
+      });
+    });
+
+    serializedParams = parts.join('&');
+  }
+
+  if (serializedParams) {
+    var hashmarkIndex = url.indexOf('#');
+    if (hashmarkIndex !== -1) {
+      url = url.slice(0, hashmarkIndex);
+    }
+
+    url += (url.indexOf('?') === -1 ? '?' : '&') + serializedParams;
+  }
+
+  return url;
+};

ddb_main/node_modules/axios/lib/helpers/combineURLs.js

@@ -0,0 +1,14 @@
+'use strict';
+
+/**
+ * Creates a new URL by combining the specified URLs
+ *
+ * @param {string} baseURL The base URL
+ * @param {string} relativeURL The relative URL
+ * @returns {string} The combined URL
+ */
+module.exports = function combineURLs(baseURL, relativeURL) {
+  return relativeURL
+    ? baseURL.replace(/\/+$/, '') + '/' + relativeURL.replace(/^\/+/, '')
+    : baseURL;
+};

ddb_main/node_modules/axios/lib/helpers/cookies.js

@@ -0,0 +1,53 @@
+'use strict';
+
+var utils = require('./../utils');
+
+module.exports = (
+  utils.isStandardBrowserEnv() ?
+
+  // Standard browser envs support document.cookie
+    (function standardBrowserEnv() {
+      return {
+        write: function write(name, value, expires, path, domain, secure) {
+          var cookie = [];
+          cookie.push(name + '=' + encodeURIComponent(value));
+
+          if (utils.isNumber(expires)) {
+            cookie.push('expires=' + new Date(expires).toGMTString());
+          }
+
+          if (utils.isString(path)) {
+            cookie.push('path=' + path);
+          }
+
+          if (utils.isString(domain)) {
+            cookie.push('domain=' + domain);
+          }
+
+          if (secure === true) {
+            cookie.push('secure');
+          }
+
+          document.cookie = cookie.join('; ');
+        },
+
+        read: function read(name) {
+          var match = document.cookie.match(new RegExp('(^|;\\s*)(' + name + ')=([^;]*)'));
+          return (match ? decodeURIComponent(match[3]) : null);
+        },
+
+        remove: function remove(name) {
+          this.write(name, '', Date.now() - 86400000);
+        }
+      };
+    })() :
+
+  // Non standard browser env (web workers, react-native) lack needed support.
+    (function nonStandardBrowserEnv() {
+      return {
+        write: function write() {},
+        read: function read() { return null; },
+        remove: function remove() {}
+      };
+    })()
+);

ddb_main/node_modules/axios/lib/helpers/isAbsoluteURL.js

@@ -0,0 +1,14 @@
+'use strict';
+
+/**
+ * Determines whether the specified URL is absolute
+ *
+ * @param {string} url The URL to test
+ * @returns {boolean} True if the specified URL is absolute, otherwise false
+ */
+module.exports = function isAbsoluteURL(url) {
+  // A URL is considered absolute if it begins with "<scheme>://" or "//" (protocol-relative URL).
+  // RFC 3986 defines scheme name as a sequence of characters beginning with a letter and followed
+  // by any combination of letters, digits, plus, period, or hyphen.
+  return /^([a-z][a-z\d+\-.]*:)?\/\//i.test(url);
+};

ddb_main/node_modules/axios/lib/helpers/isAxiosError.js

@@ -0,0 +1,13 @@
+'use strict';
+
+var utils = require('./../utils');
+
+/**
+ * Determines whether the payload is an error thrown by Axios
+ *
+ * @param {*} payload The value to test
+ * @returns {boolean} True if the payload is an error thrown by Axios, otherwise false
+ */
+module.exports = function isAxiosError(payload) {
+  return utils.isObject(payload) && (payload.isAxiosError === true);
+};

ddb_main/node_modules/axios/lib/helpers/isURLSameOrigin.js

@@ -0,0 +1,68 @@
+'use strict';
+
+var utils = require('./../utils');
+
+module.exports = (
+  utils.isStandardBrowserEnv() ?
+
+  // Standard browser envs have full support of the APIs needed to test
+  // whether the request URL is of the same origin as current location.
+    (function standardBrowserEnv() {
+      var msie = /(msie|trident)/i.test(navigator.userAgent);
+      var urlParsingNode = document.createElement('a');
+      var originURL;
+
+      /**
+    * Parse a URL to discover it's components
+    *
+    * @param {String} url The URL to be parsed
+    * @returns {Object}
+    */
+      function resolveURL(url) {
+        var href = url;
+
+        if (msie) {
+        // IE needs attribute set twice to normalize properties
+          urlParsingNode.setAttribute('href', href);
+          href = urlParsingNode.href;
+        }
+
+        urlParsingNode.setAttribute('href', href);
+
+        // urlParsingNode provides the UrlUtils interface - http://url.spec.whatwg.org/#urlutils
+        return {
+          href: urlParsingNode.href,
+          protocol: urlParsingNode.protocol ? urlParsingNode.protocol.replace(/:$/, '') : '',
+          host: urlParsingNode.host,
+          search: urlParsingNode.search ? urlParsingNode.search.replace(/^\?/, '') : '',
+          hash: urlParsingNode.hash ? urlParsingNode.hash.replace(/^#/, '') : '',
+          hostname: urlParsingNode.hostname,
+          port: urlParsingNode.port,
+          pathname: (urlParsingNode.pathname.charAt(0) === '/') ?
+            urlParsingNode.pathname :
+            '/' + urlParsingNode.pathname
+        };
+      }
+
+      originURL = resolveURL(window.location.href);
+
+      /**
+    * Determine if a URL shares the same origin as the current location
+    *
+    * @param {String} requestURL The URL to test
+    * @returns {boolean} True if URL shares the same origin, otherwise false
+    */
+      return function isURLSameOrigin(requestURL) {
+        var parsed = (utils.isString(requestURL)) ? resolveURL(requestURL) : requestURL;
+        return (parsed.protocol === originURL.protocol &&
+            parsed.host === originURL.host);
+      };
+    })() :
+
+  // Non standard browser envs (web workers, react-native) lack needed support.
+    (function nonStandardBrowserEnv() {
+      return function isURLSameOrigin() {
+        return true;
+      };
+    })()
+);

ddb_main/node_modules/axios/lib/helpers/normalizeHeaderName.js

@@ -0,0 +1,12 @@
+'use strict';
+
+var utils = require('../utils');
+
+module.exports = function normalizeHeaderName(headers, normalizedName) {
+  utils.forEach(headers, function processHeader(value, name) {
+    if (name !== normalizedName && name.toUpperCase() === normalizedName.toUpperCase()) {
+      headers[normalizedName] = value;
+      delete headers[name];
+    }
+  });
+};

ddb_main/node_modules/axios/lib/helpers/parseHeaders.js

@@ -0,0 +1,53 @@
+'use strict';
+
+var utils = require('./../utils');
+
+// Headers whose duplicates are ignored by node
+// c.f. https://nodejs.org/api/http.html#http_message_headers
+var ignoreDuplicateOf = [
+  'age', 'authorization', 'content-length', 'content-type', 'etag',
+  'expires', 'from', 'host', 'if-modified-since', 'if-unmodified-since',
+  'last-modified', 'location', 'max-forwards', 'proxy-authorization',
+  'referer', 'retry-after', 'user-agent'
+];
+
+/**
+ * Parse headers into an object
+ *
+ * ```
+ * Date: Wed, 27 Aug 2014 08:58:49 GMT
+ * Content-Type: application/json
+ * Connection: keep-alive
+ * Transfer-Encoding: chunked
+ * ```
+ *
+ * @param {String} headers Headers needing to be parsed
+ * @returns {Object} Headers parsed into an object
+ */
+module.exports = function parseHeaders(headers) {
+  var parsed = {};
+  var key;
+  var val;
+  var i;
+
+  if (!headers) { return parsed; }
+
+  utils.forEach(headers.split('\n'), function parser(line) {
+    i = line.indexOf(':');
+    key = utils.trim(line.substr(0, i)).toLowerCase();
+    val = utils.trim(line.substr(i + 1));
+
+    if (key) {
+      if (parsed[key] && ignoreDuplicateOf.indexOf(key) >= 0) {
+        return;
+      }
+      if (key === 'set-cookie') {
+        parsed[key] = (parsed[key] ? parsed[key] : []).concat([val]);
+      } else {
+        parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;
+      }
+    }
+  });
+
+  return parsed;
+};

ddb_main/node_modules/axios/lib/helpers/spread.js

@@ -0,0 +1,27 @@
+'use strict';
+
+/**
+ * Syntactic sugar for invoking a function and expanding an array for arguments.
+ *
+ * Common use case would be to use `Function.prototype.apply`.
+ *
+ *  ```js
+ *  function f(x, y, z) {}
+ *  var args = [1, 2, 3];
+ *  f.apply(null, args);
+ *  ```
+ *
+ * With `spread` this example can be re-written.
+ *
+ *  ```js
+ *  spread(function(x, y, z) {})([1, 2, 3]);
+ *  ```
+ *
+ * @param {Function} callback
+ * @returns {Function}
+ */
+module.exports = function spread(callback) {
+  return function wrap(arr) {
+    return callback.apply(null, arr);
+  };
+};

ddb_main/node_modules/axios/lib/helpers/validator.js

@@ -0,0 +1,82 @@
+'use strict';
+
+var VERSION = require('../env/data').version;
+
+var validators = {};
+
+// eslint-disable-next-line func-names
+['object', 'boolean', 'number', 'function', 'string', 'symbol'].forEach(function(type, i) {
+  validators[type] = function validator(thing) {
+    return typeof thing === type || 'a' + (i < 1 ? 'n ' : ' ') + type;
+  };
+});
+
+var deprecatedWarnings = {};
+
+/**
+ * Transitional option validator
+ * @param {function|boolean?} validator - set to false if the transitional option has been removed
+ * @param {string?} version - deprecated version / removed since version
+ * @param {string?} message - some message with additional info
+ * @returns {function}
+ */
+validators.transitional = function transitional(validator, version, message) {
+  function formatMessage(opt, desc) {
+    return '[Axios v' + VERSION + '] Transitional option \'' + opt + '\'' + desc + (message ? '. ' + message : '');
+  }
+
+  // eslint-disable-next-line func-names
+  return function(value, opt, opts) {
+    if (validator === false) {
+      throw new Error(formatMessage(opt, ' has been removed' + (version ? ' in ' + version : '')));
+    }
+
+    if (version && !deprecatedWarnings[opt]) {
+      deprecatedWarnings[opt] = true;
+      // eslint-disable-next-line no-console
+      console.warn(
+        formatMessage(
+          opt,
+          ' has been deprecated since v' + version + ' and will be removed in the near future'
+        )
+      );
+    }
+
+    return validator ? validator(value, opt, opts) : true;
+  };
+};
+
+/**
+ * Assert object's properties type
+ * @param {object} options
+ * @param {object} schema
+ * @param {boolean?} allowUnknown
+ */
+
+function assertOptions(options, schema, allowUnknown) {
+  if (typeof options !== 'object') {
+    throw new TypeError('options must be an object');
+  }
+  var keys = Object.keys(options);
+  var i = keys.length;
+  while (i-- > 0) {
+    var opt = keys[i];
+    var validator = schema[opt];
+    if (validator) {
+      var value = options[opt];
+      var result = value === undefined || validator(value, opt, options);
+      if (result !== true) {
+        throw new TypeError('option ' + opt + ' must be ' + result);
+      }
+      continue;
+    }
+    if (allowUnknown !== true) {
+      throw Error('Unknown option ' + opt);
+    }
+  }
+}
+
+module.exports = {
+  assertOptions: assertOptions,
+  validators: validators
+};

ddb_main/node_modules/axios/lib/utils.js

@@ -0,0 +1,349 @@
+'use strict';
+
+var bind = require('./helpers/bind');
+
+// utils is a library of generic helper functions non-specific to axios
+
+var toString = Object.prototype.toString;
+
+/**
+ * Determine if a value is an Array
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is an Array, otherwise false
+ */
+function isArray(val) {
+  return Array.isArray(val);
+}
+
+/**
+ * Determine if a value is undefined
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if the value is undefined, otherwise false
+ */
+function isUndefined(val) {
+  return typeof val === 'undefined';
+}
+
+/**
+ * Determine if a value is a Buffer
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is a Buffer, otherwise false
+ */
+function isBuffer(val) {
+  return val !== null && !isUndefined(val) && val.constructor !== null && !isUndefined(val.constructor)
+    && typeof val.constructor.isBuffer === 'function' && val.constructor.isBuffer(val);
+}
+
+/**
+ * Determine if a value is an ArrayBuffer
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is an ArrayBuffer, otherwise false
+ */
+function isArrayBuffer(val) {
+  return toString.call(val) === '[object ArrayBuffer]';
+}
+
+/**
+ * Determine if a value is a FormData
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is an FormData, otherwise false
+ */
+function isFormData(val) {
+  return toString.call(val) === '[object FormData]';
+}
+
+/**
+ * Determine if a value is a view on an ArrayBuffer
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is a view on an ArrayBuffer, otherwise false
+ */
+function isArrayBufferView(val) {
+  var result;
+  if ((typeof ArrayBuffer !== 'undefined') && (ArrayBuffer.isView)) {
+    result = ArrayBuffer.isView(val);
+  } else {
+    result = (val) && (val.buffer) && (isArrayBuffer(val.buffer));
+  }
+  return result;
+}
+
+/**
+ * Determine if a value is a String
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is a String, otherwise false
+ */
+function isString(val) {
+  return typeof val === 'string';
+}
+
+/**
+ * Determine if a value is a Number
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is a Number, otherwise false
+ */
+function isNumber(val) {
+  return typeof val === 'number';
+}
+
+/**
+ * Determine if a value is an Object
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is an Object, otherwise false
+ */
+function isObject(val) {
+  return val !== null && typeof val === 'object';
+}
+
+/**
+ * Determine if a value is a plain Object
+ *
+ * @param {Object} val The value to test
+ * @return {boolean} True if value is a plain Object, otherwise false
+ */
+function isPlainObject(val) {
+  if (toString.call(val) !== '[object Object]') {
+    return false;
+  }
+
+  var prototype = Object.getPrototypeOf(val);
+  return prototype === null || prototype === Object.prototype;
+}
+
+/**
+ * Determine if a value is a Date
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is a Date, otherwise false
+ */
+function isDate(val) {
+  return toString.call(val) === '[object Date]';
+}
+
+/**
+ * Determine if a value is a File
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is a File, otherwise false
+ */
+function isFile(val) {
+  return toString.call(val) === '[object File]';
+}
+
+/**
+ * Determine if a value is a Blob
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is a Blob, otherwise false
+ */
+function isBlob(val) {
+  return toString.call(val) === '[object Blob]';
+}
+
+/**
+ * Determine if a value is a Function
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is a Function, otherwise false
+ */
+function isFunction(val) {
+  return toString.call(val) === '[object Function]';
+}
+
+/**
+ * Determine if a value is a Stream
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is a Stream, otherwise false
+ */
+function isStream(val) {
+  return isObject(val) && isFunction(val.pipe);
+}
+
+/**
+ * Determine if a value is a URLSearchParams object
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is a URLSearchParams object, otherwise false
+ */
+function isURLSearchParams(val) {
+  return toString.call(val) === '[object URLSearchParams]';
+}
+
+/**
+ * Trim excess whitespace off the beginning and end of a string
+ *
+ * @param {String} str The String to trim
+ * @returns {String} The String freed of excess whitespace
+ */
+function trim(str) {
+  return str.trim ? str.trim() : str.replace(/^\s+|\s+$/g, '');
+}
+
+/**
+ * Determine if we're running in a standard browser environment
+ *
+ * This allows axios to run in a web worker, and react-native.
+ * Both environments support XMLHttpRequest, but not fully standard globals.
+ *
+ * web workers:
+ *  typeof window -> undefined
+ *  typeof document -> undefined
+ *
+ * react-native:
+ *  navigator.product -> 'ReactNative'
+ * nativescript
+ *  navigator.product -> 'NativeScript' or 'NS'
+ */
+function isStandardBrowserEnv() {
+  if (typeof navigator !== 'undefined' && (navigator.product === 'ReactNative' ||
+                                           navigator.product === 'NativeScript' ||
+                                           navigator.product === 'NS')) {
+    return false;
+  }
+  return (
+    typeof window !== 'undefined' &&
+    typeof document !== 'undefined'
+  );
+}
+
+/**
+ * Iterate over an Array or an Object invoking a function for each item.
+ *
+ * If `obj` is an Array callback will be called passing
+ * the value, index, and complete array for each item.
+ *
+ * If 'obj' is an Object callback will be called passing
+ * the value, key, and complete object for each property.
+ *
+ * @param {Object|Array} obj The object to iterate
+ * @param {Function} fn The callback to invoke for each item
+ */
+function forEach(obj, fn) {
+  // Don't bother if no value provided
+  if (obj === null || typeof obj === 'undefined') {
+    return;
+  }
+
+  // Force an array if not already something iterable
+  if (typeof obj !== 'object') {
+    /*eslint no-param-reassign:0*/
+    obj = [obj];
+  }
+
+  if (isArray(obj)) {
+    // Iterate over array values
+    for (var i = 0, l = obj.length; i < l; i++) {
+      fn.call(null, obj[i], i, obj);
+    }
+  } else {
+    // Iterate over object keys
+    for (var key in obj) {
+      if (Object.prototype.hasOwnProperty.call(obj, key)) {
+        fn.call(null, obj[key], key, obj);
+      }
+    }
+  }
+}
+
+/**
+ * Accepts varargs expecting each argument to be an object, then
+ * immutably merges the properties of each object and returns result.
+ *
+ * When multiple objects contain the same key the later object in
+ * the arguments list will take precedence.
+ *
+ * Example:
+ *
+ * ```js
+ * var result = merge({foo: 123}, {foo: 456});
+ * console.log(result.foo); // outputs 456
+ * ```
+ *
+ * @param {Object} obj1 Object to merge
+ * @returns {Object} Result of all merge properties
+ */
+function merge(/* obj1, obj2, obj3, ... */) {
+  var result = {};
+  function assignValue(val, key) {
+    if (isPlainObject(result[key]) && isPlainObject(val)) {
+      result[key] = merge(result[key], val);
+    } else if (isPlainObject(val)) {
+      result[key] = merge({}, val);
+    } else if (isArray(val)) {
+      result[key] = val.slice();
+    } else {
+      result[key] = val;
+    }
+  }
+
+  for (var i = 0, l = arguments.length; i < l; i++) {
+    forEach(arguments[i], assignValue);
+  }
+  return result;
+}
+
+/**
+ * Extends object a by mutably adding to it the properties of object b.
+ *
+ * @param {Object} a The object to be extended
+ * @param {Object} b The object to copy properties from
+ * @param {Object} thisArg The object to bind function to
+ * @return {Object} The resulting value of object a
+ */
+function extend(a, b, thisArg) {
+  forEach(b, function assignValue(val, key) {
+    if (thisArg && typeof val === 'function') {
+      a[key] = bind(val, thisArg);
+    } else {
+      a[key] = val;
+    }
+  });
+  return a;
+}
+
+/**
+ * Remove byte order marker. This catches EF BB BF (the UTF-8 BOM)
+ *
+ * @param {string} content with BOM
+ * @return {string} content value without BOM
+ */
+function stripBOM(content) {
+  if (content.charCodeAt(0) === 0xFEFF) {
+    content = content.slice(1);
+  }
+  return content;
+}
+
+module.exports = {
+  isArray: isArray,
+  isArrayBuffer: isArrayBuffer,
+  isBuffer: isBuffer,
+  isFormData: isFormData,
+  isArrayBufferView: isArrayBufferView,
+  isString: isString,
+  isNumber: isNumber,
+  isObject: isObject,
+  isPlainObject: isPlainObject,
+  isUndefined: isUndefined,
+  isDate: isDate,
+  isFile: isFile,
+  isBlob: isBlob,
+  isFunction: isFunction,
+  isStream: isStream,
+  isURLSearchParams: isURLSearchParams,
+  isStandardBrowserEnv: isStandardBrowserEnv,
+  forEach: forEach,
+  merge: merge,
+  extend: extend,
+  trim: trim,
+  stripBOM: stripBOM
+};