import { createRequire } from 'module';const require = createRequire(import.meta.url);
import {
  __commonJS,
  __require
} from "./chunk-NQ4HTGF6.js";

// node_modules/xhr2/lib/xhr2.js
var require_xhr2 = __commonJS({
  "node_modules/xhr2/lib/xhr2.js"(exports, module) {
    (function() {
      var InvalidStateError, NetworkError, ProgressEvent, SecurityError, SyntaxError, XMLHttpRequest, XMLHttpRequestEventTarget, XMLHttpRequestUpload, http, https, os, url;
      XMLHttpRequestEventTarget = function() {
        class XMLHttpRequestEventTarget2 {
          // @private
          // This is an abstract class and should not be instantiated directly.
          constructor() {
            this.onloadstart = null;
            this.onprogress = null;
            this.onabort = null;
            this.onerror = null;
            this.onload = null;
            this.ontimeout = null;
            this.onloadend = null;
            this._listeners = {};
          }
          // Adds a new-style listener for one of the XHR events.
          // @see http://www.w3.org/TR/XMLHttpRequest/#events
          // @param {String} eventType an XHR event type, such as 'readystatechange'
          // @param {function(ProgressEvent)} listener function that will be called when
          //   the event fires
          // @return {undefined} undefined
          addEventListener(eventType, listener) {
            var base;
            eventType = eventType.toLowerCase();
            (base = this._listeners)[eventType] || (base[eventType] = []);
            this._listeners[eventType].push(listener);
            return void 0;
          }
          // Removes an event listener added by calling addEventListener.
          // @param {String} eventType an XHR event type, such as 'readystatechange'
          // @param {function(ProgressEvent)} listener the value passed in a previous
          //   call to addEventListener.
          // @return {undefined} undefined
          removeEventListener(eventType, listener) {
            var index;
            eventType = eventType.toLowerCase();
            if (this._listeners[eventType]) {
              index = this._listeners[eventType].indexOf(listener);
              if (index !== -1) {
                this._listeners[eventType].splice(index, 1);
              }
            }
            return void 0;
          }
          // Calls all the listeners for an event.
          // @param {ProgressEvent} event the event to be dispatched
          // @return {undefined} undefined
          dispatchEvent(event) {
            var eventType, j, len, listener, listeners;
            event.currentTarget = event.target = this;
            eventType = event.type;
            if (listeners = this._listeners[eventType]) {
              for (j = 0, len = listeners.length; j < len; j++) {
                listener = listeners[j];
                listener.call(this, event);
              }
            }
            if (listener = this[`on${eventType}`]) {
              listener.call(this, event);
            }
            return void 0;
          }
        }
        ;
        XMLHttpRequestEventTarget2.prototype.onloadstart = null;
        XMLHttpRequestEventTarget2.prototype.onprogress = null;
        XMLHttpRequestEventTarget2.prototype.onabort = null;
        XMLHttpRequestEventTarget2.prototype.onerror = null;
        XMLHttpRequestEventTarget2.prototype.onload = null;
        XMLHttpRequestEventTarget2.prototype.ontimeout = null;
        XMLHttpRequestEventTarget2.prototype.onloadend = null;
        return XMLHttpRequestEventTarget2;
      }.call(this);
      http = __require("http");
      https = __require("https");
      os = __require("os");
      url = __require("url");
      XMLHttpRequest = function() {
        class XMLHttpRequest2 extends XMLHttpRequestEventTarget {
          // Creates a new request.
          // @param {Object} options one or more of the options below
          // @option options {Boolean} anon if true, the request's anonymous flag
          //   will be set
          // @see http://www.w3.org/TR/XMLHttpRequest/#constructors
          // @see http://www.w3.org/TR/XMLHttpRequest/#anonymous-flag
          constructor(options) {
            super();
            this.onreadystatechange = null;
            this._anonymous = options && options.anon;
            this.readyState = XMLHttpRequest2.UNSENT;
            this.response = null;
            this.responseText = "";
            this.responseType = "";
            this.responseURL = "";
            this.status = 0;
            this.statusText = "";
            this.timeout = 0;
            this.upload = new XMLHttpRequestUpload(this);
            this._method = null;
            this._url = null;
            this._sync = false;
            this._headers = null;
            this._loweredHeaders = null;
            this._mimeOverride = null;
            this._request = null;
            this._response = null;
            this._responseParts = null;
            this._responseHeaders = null;
            this._aborting = null;
            this._error = null;
            this._loadedBytes = 0;
            this._totalBytes = 0;
            this._lengthComputable = false;
          }
          // Sets the XHR's method, URL, synchronous flag, and authentication params.
          // @param {String} method the HTTP method to be used
          // @param {String} url the URL that the request will be made to
          // @param {?Boolean} async if false, the XHR should be processed
          //   synchronously; true by default
          // @param {?String} user the user credential to be used in HTTP basic
          //   authentication
          // @param {?String} password the password credential to be used in HTTP basic
          //   authentication
          // @return {undefined} undefined
          // @throw {SecurityError} method is not one of the allowed methods
          // @throw {SyntaxError} urlString is not a valid URL
          // @throw {Error} the URL contains an unsupported protocol; the supported
          //   protocols are file, http and https
          // @see http://www.w3.org/TR/XMLHttpRequest/#the-open()-method
          open(method, url2, async, user, password) {
            var xhrUrl;
            method = method.toUpperCase();
            if (method in this._restrictedMethods) {
              throw new SecurityError(`HTTP method ${method} is not allowed in XHR`);
            }
            xhrUrl = this._parseUrl(url2);
            if (async === void 0) {
              async = true;
            }
            switch (this.readyState) {
              case XMLHttpRequest2.UNSENT:
              case XMLHttpRequest2.OPENED:
              case XMLHttpRequest2.DONE:
                null;
                break;
              case XMLHttpRequest2.HEADERS_RECEIVED:
              case XMLHttpRequest2.LOADING:
                null;
            }
            this._method = method;
            this._url = xhrUrl;
            this._sync = !async;
            this._headers = {};
            this._loweredHeaders = {};
            this._mimeOverride = null;
            this._setReadyState(XMLHttpRequest2.OPENED);
            this._request = null;
            this._response = null;
            this.status = 0;
            this.statusText = "";
            this._responseParts = [];
            this._responseHeaders = null;
            this._loadedBytes = 0;
            this._totalBytes = 0;
            this._lengthComputable = false;
            return void 0;
          }
          // Appends a header to the list of author request headers.
          // @param {String} name the HTTP header name
          // @param {String} value the HTTP header value
          // @return {undefined} undefined
          // @throw {InvalidStateError} readyState is not OPENED
          // @throw {SyntaxError} name is not a valid HTTP header name or value is not
          //   a valid HTTP header value
          // @see http://www.w3.org/TR/XMLHttpRequest/#the-setrequestheader()-method
          setRequestHeader(name, value) {
            var loweredName;
            if (this.readyState !== XMLHttpRequest2.OPENED) {
              throw new InvalidStateError("XHR readyState must be OPENED");
            }
            loweredName = name.toLowerCase();
            if (this._restrictedHeaders[loweredName] || /^sec\-/.test(loweredName) || /^proxy-/.test(loweredName)) {
              console.warn(`Refused to set unsafe header "${name}"`);
              return void 0;
            }
            value = value.toString();
            if (loweredName in this._loweredHeaders) {
              name = this._loweredHeaders[loweredName];
              this._headers[name] = this._headers[name] + ", " + value;
            } else {
              this._loweredHeaders[loweredName] = name;
              this._headers[name] = value;
            }
            return void 0;
          }
          // Initiates the request.
          // @param {?String, ?ArrayBufferView} data the data to be sent; ignored for
          //   GET and HEAD requests
          // @return {undefined} undefined
          // @throw {InvalidStateError} readyState is not OPENED
          // @see http://www.w3.org/TR/XMLHttpRequest/#the-send()-method
          send(data) {
            if (this.readyState !== XMLHttpRequest2.OPENED) {
              throw new InvalidStateError("XHR readyState must be OPENED");
            }
            if (this._request) {
              throw new InvalidStateError("send() already called");
            }
            switch (this._url.protocol) {
              case "file:":
                this._sendFile(data);
                break;
              case "http:":
              case "https:":
                this._sendHttp(data);
                break;
              default:
                throw new NetworkError(`Unsupported protocol ${this._url.protocol}`);
            }
            return void 0;
          }
          // Cancels the network activity performed by this request.
          // @return {undefined} undefined
          // @see http://www.w3.org/TR/XMLHttpRequest/#the-abort()-method
          abort() {
            if (!this._request) {
              return;
            }
            this._request.abort();
            this._setError();
            this._dispatchProgress("abort");
            this._dispatchProgress("loadend");
            return void 0;
          }
          // Returns a header value in the HTTP response for this XHR.
          // @param {String} name case-insensitive HTTP header name
          // @return {?String} value the value of the header whose name matches the
          //   given name, or null if there is no such header
          // @see http://www.w3.org/TR/XMLHttpRequest/#the-getresponseheader()-method
          getResponseHeader(name) {
            var loweredName;
            if (!this._responseHeaders) {
              return null;
            }
            loweredName = name.toLowerCase();
            if (loweredName in this._responseHeaders) {
              return this._responseHeaders[loweredName];
            } else {
              return null;
            }
          }
          // Returns all the HTTP headers in this XHR's response.
          // @return {String} header lines separated by CR LF, where each header line
          //   has the name and value separated by a ": " (colon, space); the empty
          //   string is returned if the headers are not available
          // @see http://www.w3.org/TR/XMLHttpRequest/#the-getallresponseheaders()-method
          getAllResponseHeaders() {
            var lines, name, value;
            if (!this._responseHeaders) {
              return "";
            }
            lines = function() {
              var ref, results;
              ref = this._responseHeaders;
              results = [];
              for (name in ref) {
                value = ref[name];
                results.push(`${name}: ${value}`);
              }
              return results;
            }.call(this);
            return lines.join("\r\n");
          }
          // Overrides the Content-Type
          // @return {undefined} undefined
          // @see http://www.w3.org/TR/XMLHttpRequest/#the-overridemimetype()-method
          overrideMimeType(newMimeType) {
            if (this.readyState === XMLHttpRequest2.LOADING || this.readyState === XMLHttpRequest2.DONE) {
              throw new InvalidStateError("overrideMimeType() not allowed in LOADING or DONE");
            }
            this._mimeOverride = newMimeType.toLowerCase();
            return void 0;
          }
          // Network configuration not exposed in the XHR API.
          // Although the XMLHttpRequest specification calls itself "ECMAScript HTTP",
          // it assumes that requests are always performed in the context of a browser
          // application, where some network parameters are set by the browser user and
          // should not be modified by Web applications. This API provides access to
          // these network parameters.
          // NOTE: this is not in the XMLHttpRequest API, and will not work in
          // browsers.  It is a stable node-xhr2 API.
          // @param {Object} options one or more of the options below
          // @option options {?http.Agent} httpAgent the value for the nodejsHttpAgent
          //   property (the agent used for HTTP requests)
          // @option options {?https.Agent} httpsAgent the value for the
          //   nodejsHttpsAgent property (the agent used for HTTPS requests)
          // @return {undefined} undefined
          nodejsSet(options) {
            var baseUrl, parsedUrl;
            if ("httpAgent" in options) {
              this.nodejsHttpAgent = options.httpAgent;
            }
            if ("httpsAgent" in options) {
              this.nodejsHttpsAgent = options.httpsAgent;
            }
            if ("baseUrl" in options) {
              baseUrl = options.baseUrl;
              if (baseUrl !== null) {
                parsedUrl = url.parse(baseUrl, false, true);
                if (!parsedUrl.protocol) {
                  throw new SyntaxError("baseUrl must be an absolute URL");
                }
              }
              this.nodejsBaseUrl = baseUrl;
            }
            return void 0;
          }
          // Default settings for the network configuration not exposed in the XHR API.
          // NOTE: this is not in the XMLHttpRequest API, and will not work in
          // browsers.  It is a stable node-xhr2 API.
          // @param {Object} options one or more of the options below
          // @option options {?http.Agent} httpAgent the default value for the
          //   nodejsHttpAgent property (the agent used for HTTP requests)
          // @option options {https.Agent} httpsAgent the default value for the
          //   nodejsHttpsAgent property (the agent used for HTTPS requests)
          // @return {undefined} undefined
          // @see XMLHttpRequest.nodejsSet
          static nodejsSet(options) {
            XMLHttpRequest2.prototype.nodejsSet(options);
            return void 0;
          }
          // Sets the readyState property and fires the readystatechange event.
          // @private
          // @param {Number} newReadyState the new value of readyState
          // @return {undefined} undefined
          _setReadyState(newReadyState) {
            var event;
            this.readyState = newReadyState;
            event = new ProgressEvent("readystatechange");
            this.dispatchEvent(event);
            return void 0;
          }
          // XMLHttpRequest#send() implementation for the file: protocol.
          // @private
          _sendFile() {
            if (this._url.method !== "GET") {
              throw new NetworkError("The file protocol only supports GET");
            }
            throw new Error("Protocol file: not implemented");
          }
          // XMLHttpRequest#send() implementation for the http: and https: protocols.
          // @private
          // This method sets the instance variables and calls _sendHxxpRequest(), which
          // is responsible for building a node.js request and firing it off. The code
          // in _sendHxxpRequest() is separated off so it can be reused when handling
          // redirects.
          // @see http://www.w3.org/TR/XMLHttpRequest/#infrastructure-for-the-send()-method
          _sendHttp(data) {
            if (this._sync) {
              throw new Error("Synchronous XHR processing not implemented");
            }
            if (data != null && (this._method === "GET" || this._method === "HEAD")) {
              console.warn(`Discarding entity body for ${this._method} requests`);
              data = null;
            } else {
              data || (data = "");
            }
            this.upload._setData(data);
            this._finalizeHeaders();
            this._sendHxxpRequest();
            return void 0;
          }
          // Sets up and fires off a HTTP/HTTPS request using the node.js API.
          // @private
          // This method contains the bulk of the XMLHttpRequest#send() implementation,
          // and is also used to issue new HTTP requests when handling HTTP redirects.
          // @see http://www.w3.org/TR/XMLHttpRequest/#infrastructure-for-the-send()-method
          _sendHxxpRequest() {
            var agent, hxxp, request;
            if (this._url.protocol === "http:") {
              hxxp = http;
              agent = this.nodejsHttpAgent;
            } else {
              hxxp = https;
              agent = this.nodejsHttpsAgent;
            }
            request = hxxp.request({
              hostname: this._url.hostname,
              port: this._url.port,
              path: this._url.path,
              auth: this._url.auth,
              method: this._method,
              headers: this._headers,
              agent
            });
            this._request = request;
            if (this.timeout) {
              request.setTimeout(this.timeout, () => {
                return this._onHttpTimeout(request);
              });
            }
            request.on("response", (response) => {
              return this._onHttpResponse(request, response);
            });
            request.on("error", (error) => {
              return this._onHttpRequestError(request, error);
            });
            this.upload._startUpload(request);
            if (this._request === request) {
              this._dispatchProgress("loadstart");
            }
            return void 0;
          }
          // Fills in the restricted HTTP headers with default values.
          // This is called right before the HTTP request is sent off.
          // @private
          // @return {undefined} undefined
          _finalizeHeaders() {
            var base;
            this._headers["Connection"] = "keep-alive";
            this._headers["Host"] = this._url.host;
            if (this._anonymous) {
              this._headers["Referer"] = "about:blank";
            }
            (base = this._headers)["User-Agent"] || (base["User-Agent"] = this._userAgent);
            this.upload._finalizeHeaders(this._headers, this._loweredHeaders);
            return void 0;
          }
          // Called when the headers of an HTTP response have been received.
          // @private
          // @param {http.ClientRequest} request the node.js ClientRequest instance that
          //   produced this response
          // @param {http.ClientResponse} response the node.js ClientResponse instance
          //   passed to
          _onHttpResponse(request, response) {
            var lengthString;
            if (this._request !== request) {
              return;
            }
            switch (response.statusCode) {
              case 301:
              case 302:
              case 303:
              case 307:
              case 308:
                this._url = this._parseUrl(response.headers["location"]);
                this._method = "GET";
                if ("content-type" in this._loweredHeaders) {
                  delete this._headers[this._loweredHeaders["content-type"]];
                  delete this._loweredHeaders["content-type"];
                }
                if ("Content-Type" in this._headers) {
                  delete this._headers["Content-Type"];
                }
                delete this._headers["Content-Length"];
                this.upload._reset();
                this._finalizeHeaders();
                this._sendHxxpRequest();
                return;
            }
            this._response = response;
            this._response.on("data", (data) => {
              return this._onHttpResponseData(response, data);
            });
            this._response.on("end", () => {
              return this._onHttpResponseEnd(response);
            });
            this._response.on("close", () => {
              return this._onHttpResponseClose(response);
            });
            this.responseURL = this._url.href.split("#")[0];
            this.status = this._response.statusCode;
            this.statusText = http.STATUS_CODES[this.status];
            this._parseResponseHeaders(response);
            if (lengthString = this._responseHeaders["content-length"]) {
              this._totalBytes = parseInt(lengthString);
              this._lengthComputable = true;
            } else {
              this._lengthComputable = false;
            }
            return this._setReadyState(XMLHttpRequest2.HEADERS_RECEIVED);
          }
          // Called when some data has been received on a HTTP connection.
          // @private
          // @param {http.ClientResponse} response the node.js ClientResponse instance
          //   that fired this event
          // @param {String, Buffer} data the data that has been received
          _onHttpResponseData(response, data) {
            if (this._response !== response) {
              return;
            }
            this._responseParts.push(data);
            this._loadedBytes += data.length;
            if (this.readyState !== XMLHttpRequest2.LOADING) {
              this._setReadyState(XMLHttpRequest2.LOADING);
            }
            return this._dispatchProgress("progress");
          }
          // Called when the HTTP request finished processing.
          // @private
          // @param {http.ClientResponse} response the node.js ClientResponse instance
          //   that fired this event
          _onHttpResponseEnd(response) {
            if (this._response !== response) {
              return;
            }
            this._parseResponse();
            this._request = null;
            this._response = null;
            this._setReadyState(XMLHttpRequest2.DONE);
            this._dispatchProgress("load");
            return this._dispatchProgress("loadend");
          }
          // Called when the underlying HTTP connection was closed prematurely.
          // If this method is called, it will be called after or instead of
          // onHttpResponseEnd.
          // @private
          // @param {http.ClientResponse} response the node.js ClientResponse instance
          //   that fired this event
          _onHttpResponseClose(response) {
            var request;
            if (this._response !== response) {
              return;
            }
            request = this._request;
            this._setError();
            request.abort();
            this._setReadyState(XMLHttpRequest2.DONE);
            this._dispatchProgress("error");
            return this._dispatchProgress("loadend");
          }
          // Called when the timeout set on the HTTP socket expires.
          // @private
          // @param {http.ClientRequest} request the node.js ClientRequest instance that
          //   fired this event
          _onHttpTimeout(request) {
            if (this._request !== request) {
              return;
            }
            this._setError();
            request.abort();
            this._setReadyState(XMLHttpRequest2.DONE);
            this._dispatchProgress("timeout");
            return this._dispatchProgress("loadend");
          }
          // Called when something wrong happens on the HTTP socket
          // @private
          // @param {http.ClientRequest} request the node.js ClientRequest instance that
          //   fired this event
          // @param {Error} error emitted exception
          _onHttpRequestError(request, error) {
            if (this._request !== request) {
              return;
            }
            this._setError();
            request.abort();
            this._setReadyState(XMLHttpRequest2.DONE);
            this._dispatchProgress("error");
            return this._dispatchProgress("loadend");
          }
          // Fires an XHR progress event.
          // @private
          // @param {String} eventType one of the XHR progress event types, such as
          //   'load' and 'progress'
          _dispatchProgress(eventType) {
            var event;
            event = new ProgressEvent(eventType);
            event.lengthComputable = this._lengthComputable;
            event.loaded = this._loadedBytes;
            event.total = this._totalBytes;
            this.dispatchEvent(event);
            return void 0;
          }
          // Sets up the XHR to reflect the fact that an error has occurred.
          // The possible errors are a network error, a timeout, or an abort.
          // @private
          _setError() {
            this._request = null;
            this._response = null;
            this._responseHeaders = null;
            this._responseParts = null;
            return void 0;
          }
          // Parses a request URL string.
          // @private
          // This method is a thin wrapper around url.parse() that normalizes HTTP
          // user/password credentials. It is used to parse the URL string passed to
          // XMLHttpRequest#open() and the URLs in the Location headers of HTTP redirect
          // responses.
          // @param {String} urlString the URL to be parsed
          // @return {Object} parsed URL
          _parseUrl(urlString) {
            var absoluteUrlString, index, password, user, xhrUrl;
            if (this.nodejsBaseUrl === null) {
              absoluteUrlString = urlString;
            } else {
              absoluteUrlString = url.resolve(this.nodejsBaseUrl, urlString);
            }
            xhrUrl = url.parse(absoluteUrlString, false, true);
            xhrUrl.hash = null;
            if (xhrUrl.auth && (typeof user !== "undefined" && user !== null || typeof password !== "undefined" && password !== null)) {
              index = xhrUrl.auth.indexOf(":");
              if (index === -1) {
                if (!user) {
                  user = xhrUrl.auth;
                }
              } else {
                if (!user) {
                  user = xhrUrl.substring(0, index);
                }
                if (!password) {
                  password = xhrUrl.substring(index + 1);
                }
              }
            }
            if (user || password) {
              xhrUrl.auth = `${user}:${password}`;
            }
            return xhrUrl;
          }
          // Reads the headers from a node.js ClientResponse instance.
          // @private
          // @param {http.ClientResponse} response the response whose headers will be
          //   imported into this XMLHttpRequest's state
          // @return {undefined} undefined
          // @see http://www.w3.org/TR/XMLHttpRequest/#the-getresponseheader()-method
          // @see http://www.w3.org/TR/XMLHttpRequest/#the-getallresponseheaders()-method
          _parseResponseHeaders(response) {
            var loweredName, name, ref, value;
            this._responseHeaders = {};
            ref = response.headers;
            for (name in ref) {
              value = ref[name];
              loweredName = name.toLowerCase();
              if (this._privateHeaders[loweredName]) {
                continue;
              }
              if (this._mimeOverride !== null && loweredName === "content-type") {
                value = this._mimeOverride;
              }
              this._responseHeaders[loweredName] = value;
            }
            if (this._mimeOverride !== null && !("content-type" in this._responseHeaders)) {
              this._responseHeaders["content-type"] = this._mimeOverride;
            }
            return void 0;
          }
          // Sets the response and responseText properties when an XHR completes.
          // @private
          // @return {undefined} undefined
          _parseResponse() {
            var arrayBuffer, buffer, i, j, jsonError, ref, view;
            if (Buffer.concat) {
              buffer = Buffer.concat(this._responseParts);
            } else {
              buffer = this._concatBuffers(this._responseParts);
            }
            this._responseParts = null;
            switch (this.responseType) {
              case "text":
                this._parseTextResponse(buffer);
                break;
              case "json":
                this.responseText = null;
                try {
                  this.response = JSON.parse(buffer.toString("utf-8"));
                } catch (error1) {
                  jsonError = error1;
                  this.response = null;
                }
                break;
              case "buffer":
                this.responseText = null;
                this.response = buffer;
                break;
              case "arraybuffer":
                this.responseText = null;
                arrayBuffer = new ArrayBuffer(buffer.length);
                view = new Uint8Array(arrayBuffer);
                for (i = j = 0, ref = buffer.length; 0 <= ref ? j < ref : j > ref; i = 0 <= ref ? ++j : --j) {
                  view[i] = buffer[i];
                }
                this.response = arrayBuffer;
                break;
              default:
                this._parseTextResponse(buffer);
            }
            return void 0;
          }
          // Sets response and responseText for a 'text' response type.
          // @private
          // @param {Buffer} buffer the node.js Buffer containing the binary response
          // @return {undefined} undefined
          _parseTextResponse(buffer) {
            var e;
            try {
              this.responseText = buffer.toString(this._parseResponseEncoding());
            } catch (error1) {
              e = error1;
              this.responseText = buffer.toString("binary");
            }
            this.response = this.responseText;
            return void 0;
          }
          // Figures out the string encoding of the XHR's response.
          // This is called to determine the encoding when responseText is set.
          // @private
          // @return {String} a string encoding, e.g. 'utf-8'
          _parseResponseEncoding() {
            var contentType, encoding, match;
            encoding = null;
            if (contentType = this._responseHeaders["content-type"]) {
              if (match = /\;\s*charset\=(.*)$/.exec(contentType)) {
                return match[1];
              }
            }
            return "utf-8";
          }
          // Buffer.concat implementation for node 0.6.
          // @private
          // @param {Array<Buffer>} buffers the buffers whose contents will be merged
          // @return {Buffer} same as Buffer.concat(buffers) in node 0.8 and above
          _concatBuffers(buffers) {
            var buffer, j, k, len, len1, length, target;
            if (buffers.length === 0) {
              return Buffer.alloc(0);
            }
            if (buffers.length === 1) {
              return buffers[0];
            }
            length = 0;
            for (j = 0, len = buffers.length; j < len; j++) {
              buffer = buffers[j];
              length += buffer.length;
            }
            target = Buffer.alloc(length);
            length = 0;
            for (k = 0, len1 = buffers.length; k < len1; k++) {
              buffer = buffers[k];
              buffer.copy(target, length);
              length += buffer.length;
            }
            return target;
          }
        }
        ;
        XMLHttpRequest2.prototype.onreadystatechange = null;
        XMLHttpRequest2.prototype.readyState = null;
        XMLHttpRequest2.prototype.response = null;
        XMLHttpRequest2.prototype.responseText = null;
        XMLHttpRequest2.prototype.responseType = null;
        XMLHttpRequest2.prototype.status = null;
        XMLHttpRequest2.prototype.timeout = null;
        XMLHttpRequest2.prototype.upload = null;
        XMLHttpRequest2.prototype.UNSENT = 0;
        XMLHttpRequest2.UNSENT = 0;
        XMLHttpRequest2.prototype.OPENED = 1;
        XMLHttpRequest2.OPENED = 1;
        XMLHttpRequest2.prototype.HEADERS_RECEIVED = 2;
        XMLHttpRequest2.HEADERS_RECEIVED = 2;
        XMLHttpRequest2.prototype.LOADING = 3;
        XMLHttpRequest2.LOADING = 3;
        XMLHttpRequest2.prototype.DONE = 4;
        XMLHttpRequest2.DONE = 4;
        XMLHttpRequest2.prototype.nodejsHttpAgent = http.globalAgent;
        XMLHttpRequest2.prototype.nodejsHttpsAgent = https.globalAgent;
        XMLHttpRequest2.prototype.nodejsBaseUrl = null;
        XMLHttpRequest2.prototype._restrictedMethods = {
          CONNECT: true,
          TRACE: true,
          TRACK: true
        };
        XMLHttpRequest2.prototype._restrictedHeaders = {
          "accept-charset": true,
          "accept-encoding": true,
          "access-control-request-headers": true,
          "access-control-request-method": true,
          connection: true,
          "content-length": true,
          cookie: true,
          cookie2: true,
          date: true,
          dnt: true,
          expect: true,
          host: true,
          "keep-alive": true,
          origin: true,
          referer: true,
          te: true,
          trailer: true,
          "transfer-encoding": true,
          upgrade: true,
          via: true
        };
        XMLHttpRequest2.prototype._privateHeaders = {
          "set-cookie": true,
          "set-cookie2": true
        };
        XMLHttpRequest2.prototype._userAgent = `Mozilla/5.0 (${os.type()} ${os.arch()}) node.js/${process.versions.node} v8/${process.versions.v8}`;
        return XMLHttpRequest2;
      }.call(this);
      module.exports = XMLHttpRequest;
      XMLHttpRequest.XMLHttpRequest = XMLHttpRequest;
      SecurityError = class SecurityError extends Error {
        // @private
        constructor() {
          super();
        }
      };
      XMLHttpRequest.SecurityError = SecurityError;
      InvalidStateError = class InvalidStateError extends Error {
        // @private
        constructor() {
          super();
        }
      };
      InvalidStateError = class InvalidStateError extends Error {
      };
      XMLHttpRequest.InvalidStateError = InvalidStateError;
      NetworkError = class NetworkError extends Error {
        // @private
        constructor() {
          super();
        }
      };
      XMLHttpRequest.SyntaxError = SyntaxError;
      SyntaxError = class SyntaxError extends Error {
        // @private:
        constructor() {
          super();
        }
      };
      ProgressEvent = function() {
        class ProgressEvent2 {
          // Creates a new event.
          // @param {String} type the event type, e.g. 'readystatechange'; must be
          //   lowercased
          constructor(type) {
            this.type = type;
            this.target = null;
            this.currentTarget = null;
            this.lengthComputable = false;
            this.loaded = 0;
            this.total = 0;
          }
        }
        ;
        ProgressEvent2.prototype.bubbles = false;
        ProgressEvent2.prototype.cancelable = false;
        ProgressEvent2.prototype.target = null;
        ProgressEvent2.prototype.loaded = null;
        ProgressEvent2.prototype.lengthComputable = null;
        ProgressEvent2.prototype.total = null;
        return ProgressEvent2;
      }.call(this);
      XMLHttpRequest.ProgressEvent = ProgressEvent;
      XMLHttpRequestUpload = class XMLHttpRequestUpload extends XMLHttpRequestEventTarget {
        // @private
        // @param {XMLHttpRequest} the XMLHttpRequest that this upload object is
        //   associated with
        constructor(request) {
          super();
          this._request = request;
          this._reset();
        }
        // Sets up this Upload to handle a new request.
        // @private
        // @return {undefined} undefined
        _reset() {
          this._contentType = null;
          this._body = null;
          return void 0;
        }
        // Implements the upload-related part of the send() XHR specification.
        // @private
        // @param {?String, ?Buffer, ?ArrayBufferView} data the argument passed to
        //   XMLHttpRequest#send()
        // @return {undefined} undefined
        // @see step 4 of http://www.w3.org/TR/XMLHttpRequest/#the-send()-method
        _setData(data) {
          var body, i, j, k, offset, ref, ref1, view;
          if (typeof data === "undefined" || data === null) {
            return;
          }
          if (typeof data === "string") {
            if (data.length !== 0) {
              this._contentType = "text/plain;charset=UTF-8";
            }
            this._body = Buffer.from(data, "utf8");
          } else if (Buffer.isBuffer(data)) {
            this._body = data;
          } else if (data instanceof ArrayBuffer) {
            body = Buffer.alloc(data.byteLength);
            view = new Uint8Array(data);
            for (i = j = 0, ref = data.byteLength; 0 <= ref ? j < ref : j > ref; i = 0 <= ref ? ++j : --j) {
              body[i] = view[i];
            }
            this._body = body;
          } else if (data.buffer && data.buffer instanceof ArrayBuffer) {
            body = Buffer.alloc(data.byteLength);
            offset = data.byteOffset;
            view = new Uint8Array(data.buffer);
            for (i = k = 0, ref1 = data.byteLength; 0 <= ref1 ? k < ref1 : k > ref1; i = 0 <= ref1 ? ++k : --k) {
              body[i] = view[i + offset];
            }
            this._body = body;
          } else {
            throw new Error(`Unsupported send() data ${data}`);
          }
          return void 0;
        }
        // Updates the HTTP headers right before the request is sent.
        // This is used to set data-dependent headers such as Content-Length and
        // Content-Type.
        // @private
        // @param {Object<String, String>} headers the HTTP headers to be sent
        // @param {Object<String, String>} loweredHeaders maps lowercased HTTP header
        //   names (e.g., 'content-type') to the actual names used in the headers
        //   parameter (e.g., 'Content-Type')
        // @return {undefined} undefined
        _finalizeHeaders(headers, loweredHeaders) {
          if (this._contentType) {
            if (!("content-type" in loweredHeaders)) {
              headers["Content-Type"] = this._contentType;
            }
          }
          if (this._body) {
            headers["Content-Length"] = this._body.length.toString();
          }
          return void 0;
        }
        // Starts sending the HTTP request data.
        // @private
        // @param {http.ClientRequest} request the HTTP request
        // @return {undefined} undefined
        _startUpload(request) {
          if (this._body) {
            request.write(this._body);
          }
          request.end();
          return void 0;
        }
      };
      XMLHttpRequest.XMLHttpRequestUpload = XMLHttpRequestUpload;
    }).call(exports);
  }
});
export default require_xhr2();
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