fix annoying typing error

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@ewsjs/xhr",
-  "version": "1.4.0",
+  "version": "1.4.1",
   "description": "alternate XHR methods for ewsjs",
   "main": "src/index.js",
   "scripts": {

src/ews.partial.d.ts

@@ -7,6 +7,7 @@ export interface IXHROptions {
     headers?: any;
     data?: any;
     responseType?: string;
+    allowRedirect?: boolean;
     customRequestInitializer?: (request: XMLHttpRequest) => void;
     cookies?: any;
     jar?: any;

src/xhrApi.js

@@ -108,7 +108,7 @@ var XhrApi = /** @class */ (function () {
             body: xhroptions.data,
             headers: xhroptions.headers,
             method: xhroptions.type,
-            followRedirect: false,
+            followRedirect: !!xhroptions.allowRedirect,
         };
         options["rejectUnauthorized"] = !this.allowUntrustedCertificate;
         // if (this.allowUntrustedCertificate) {

src/xhrApi.ts

@@ -4,8 +4,6 @@ import * as  Promise from "bluebird";
 import { IXHROptions, IXHRApi, IXHRProgress } from "./ews.partial";
 import { setupXhrResponse } from "./utils";
 
-import { Agent as httpsAgent, RequestOptions } from "https";
-import { ClientResponse } from "http"
 import { IProvider } from "./IProvider";
 import { NtlmProvider } from './ntlmProvider';
 import { CookieProvider } from './cookieProvider';
@@ -139,7 +137,7 @@ export class XhrApi implements IXHRApi {
             body: xhroptions.data,
             headers: xhroptions.headers,
             method: <any>xhroptions.type,
-            followRedirect: false,
+            followRedirect: !!xhroptions.allowRedirect,
             //resolveWithFullResponse: true
         }
         options["rejectUnauthorized"] = !this.allowUntrustedCertificate;