issue found after angular update:

1.	* issue:
		-"sockjs.js:1679 WebSocket connection to 'ws://ae.citzy.com/sockjs-node/314/xptyayav/websocket' failed: Error during WebSocket handshake: Incorrect 'Sec-WebSocket-Accept' header value"

	* possible solution:
		- based on https://github.com/aspnet/SignalR/issues/1585 and https://github.com/SignalR/SignalR/issues/3691
		just need to install websocket in IIS

2.	* issue:
		-"GET http://citzy.com/api/services/app/UserProfile/GetItems?IsActive=true 401 (Unauthorized)"
		"POST http://citzy.com/api/services/web/Item/UploadImage 500 (Internal Server Error)"
		Not getting the current user and tenant Id

	* solution:
		Need implement new http-interceptor, that is by default send the authorization token from every http request.
		This occurs again because the previous implementation supports Http from @angular/http (Http has been depreciated https://angular.io/api/http/Http)
		but since we upgraded to HttpClient from @angular/common/http we need to a new implementation by extending HttpInterceptor