fix(signal-r): update resolve

Author: MarkPieszak

ClientApp/app/shared/route.resolver.ts

@@ -1,15 +1,21 @@
 import { Injectable } from '@angular/core';
-import { Resolve } from '@angular/router';
+import { Resolve, Router } from '@angular/router';
 
 import { SignalR, ISignalRConnection } from 'ng2-signalr';
 
 @Injectable()
 export class ConnectionResolver implements Resolve<ISignalRConnection> {
 
-    constructor(private _signalR: SignalR) { }
+    constructor(
+      private _signalR: SignalR,
+      private _router: Router
+    ) { }
 
-    resolve() {
-        console.log('ConnectionResolver. Resolving...');
-        return this._signalR.connect();
+    resolve(): Promise<any> {
+      return this._signalR.connect().then((item) => {
+          return item;
+      }).catch(() => {
+          return this._router.navigate(['/']);
+      });
     }
-} 
+}