diff --git a/angular-ui/angular-ui-router-tests.ts b/angular-ui/angular-ui-router-tests.ts
index 5a9c4ad6c..d7dbe7183 100644
--- a/angular-ui/angular-ui-router-tests.ts
+++ b/angular-ui/angular-ui-router-tests.ts
@@ -71,3 +71,42 @@ myApp.config((
       }
     });
 });
+
+interface IUrlLocatorTestService {
+    currentUser: any;
+}
+
+// Service for determining who the currently logged on user is.
+class UrlLocatorTestService implements IUrlLocatorTestService {
+    static $inject = ["$http", "$rootScope", "$urlRouter"];
+
+    constructor(
+        private $http: ng.IHttpService,
+        private $rootScope: ng.IRootScopeService,
+        private $urlRouter: ng.ui.IUrlRouterService
+    ) {
+        $rootScope.$on("$locationChangeSuccess", (event: ng.IAngularEvent) => this.onLocationChangeSuccess(event));
+    }
+
+    public currentUser: any;
+
+    private onLocationChangeSuccess(event: ng.IAngularEvent) {
+        if (!this.currentUser) {
+            // If the current user is unknown, halt the state change and request current
+            // user details from the server
+            event.preventDefault();
+
+            // Note that we do not concern ourselves with what to do if this request fails,
+            // because if it fails, the web page will be redirected away to the login screen.
+            this.$http({ url: "/api/me", method: "GET" }).success((user: any) => {
+                this.currentUser = user;
+
+                // sync the ui-state with the location in the browser, which effectively
+                // restarts the state change that was stopped previously
+                this.$urlRouter.sync();
+            });
+        }
+    }
+}
+
+myApp.service("urlLocatorTest", UrlLocatorTestService);