Fix issue with removal shim for global

see angular/angular-cli#8160 (comment)

Author: Justice Ogbonna

package-lock.json

@@ -1,13 +1,14 @@
 import { Injectable } from "@angular/core";
 import { Observable, Subject, interval, timer } from "rxjs";
 import { map, takeUntil } from "rxjs/operators";
+import io from "socket.io-client";
 
 import { CacheService } from "./cache.service";
 import { Event } from "../../common/events";
 
 @Injectable()
 export class SocketService {
-  private socket: SocketIO.Socket;
+  private socket: SocketIO.Socket = io();
   private isAuthedSubj = new Subject<boolean>();
   private tokenSubj = new Subject<string>();
   private pairedSubj = new Subject<string>();
@@ -18,7 +19,8 @@ export class SocketService {
     // No need to watch localStorage, before/after setting this item call the subjects.
     // downside is  that other tabs may not receive it, which is better to prevent cross tab pollution.
     this.isAuthedSubj.next(token != null);
-    this.socket.addListener(Event.TOKEN, args => {
+
+    this.socket.on(Event.TOKEN, args => {
       this.tokenSubj.next(args);
     });
   }

src/app/services/socket.service.ts

@@ -40,27 +40,23 @@
 /** IE10 and IE11 requires the following for the Reflect API. */
 // import 'core-js/es6/reflect';
 
-
 /** Evergreen browsers require these. **/
 // Used for reflect-metadata in JIT. If you use AOT (and only Angular decorators), you can remove.
-import 'core-js/es7/reflect';
-
+import "core-js/es7/reflect";
 
 /**
  * Required to support Web Animations `@angular/platform-browser/animations`.
  * Needed for: All but Chrome, Firefox and Opera. http://caniuse.com/#feat=web-animation
  **/
 // import 'web-animations-js';  // Run `npm install --save web-animations-js`.
 
-
-
 /***************************************************************************************************
  * Zone JS is required by default for Angular itself.
  */
-import 'zone.js/dist/zone';  // Included with Angular CLI.
-
-
+import "zone.js/dist/zone"; // Included with Angular CLI.
 
 /***************************************************************************************************
  * APPLICATION IMPORTS
  */
+// Add global to window, assigning the value of window itself.
+(window as any).global = window;