Function countdown

src/webui/app/controllers.js:507–514

()

      $scope.retry = $scope.delay;
      var countdown = function() {
        if ($scope.retry === 0) {
          errorModal.close();
        } else {
          $scope.retry = $scope.retry - 1000;
          $scope.countdown = $timeout(countdown, 1000);
        }
      };
      countdown();
    };