private const string waitScript = @"
                if (window.jQuery != undefined) {
                        if (window.jQuery.active != 0) return false;
                      }
                      if (window.angular != undefined) {
                        var injector = window.angular.element('.ng-scope').injector();
                        if (injector) {
                            var http = injector.get('$http');
                            if (http && http.pendingRequests && http.pendingRequests.length) return false;
                        }
                      };
                      return true;";

(bool)((IJavaScriptExecutor)_driver).ExecuteScript(waitScript);