Add baseUrl method

@@ -21,6 +21,7 @@ import { Inject, Injectable, NgZone } from '@angular/core';
 import { WINDOW } from '@core/services/window.service';
 import { ExceptionData } from '@app/shared/models/error.models';
 import {
+  baseUrl,
   createLabelFromDatasource,
   deepClone,
   deleteNullProperties,
@@ -409,7 +410,7 @@ export class UtilsService {
   }
 
   public updateQueryParam(name: string, value: string | null) {
-    const baseUrl = [this.window.location.protocol, '//', this.window.location.host, this.window.location.pathname].join('');
+    const baseUrlPart = [baseUrl(), this.window.location.pathname].join('');
     const urlQueryString = this.window.location.search;
     let newParam = '';
     let params = '';
@@ -429,7 +430,11 @@ export class UtilsService {
     } else if (newParam) {
       params = '?' + newParam;
     }
-    this.window.history.replaceState({}, '', baseUrl + params);
+    this.window.history.replaceState({}, '', baseUrlPart + params);
+  }
+
+  public baseUrl(): string {
+    return baseUrl();
   }
 
   public deepClone<T>(target: T, ignoreFields?: string[]): T {

@@ -385,6 +385,15 @@ export function padValue(val: any, dec: number): string {
   return strVal;
 }
 
+export function baseUrl(): string {
+  let url = window.location.protocol + '//' + window.location.hostname;
+  const port = window.location.port;
+  if (port && port.length > 0 && port !== '80' && port !== '443') {
+    url += ':' + port;
+  }
+  return url;
+}
+
 export function sortObjectKeys<T>(obj: T): T {
   return Object.keys(obj).sort().reduce((acc, key) => {
     acc[key] = obj[key];