diff --git a/core/modules/update/src/Form/UpdateManagerInstall.php b/core/modules/update/src/Form/UpdateManagerInstall.php
index b6f1855..26938cd 100644
--- a/core/modules/update/src/Form/UpdateManagerInstall.php
+++ b/core/modules/update/src/Form/UpdateManagerInstall.php
@@ -12,7 +12,6 @@
 use Drupal\Core\Form\FormBase;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Updater\Updater;
-use Drupal\Core\Url;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
@@ -210,6 +209,7 @@ public function submitForm(array &$form, FormStateInterface $form_state) {
       $this->moduleHandler->loadInclude('update', 'inc', 'update.authorize');
       $filetransfer = new Local(DRUPAL_ROOT);
       call_user_func_array('update_authorize_run_install', array_merge(array($filetransfer), $arguments));
+      $form_state->setRedirectUrl(system_authorized_batch_processing_url());
     }
 
     // Otherwise, go through the regular workflow to prompt for FTP/SSH
@@ -217,9 +217,8 @@ public function submitForm(array &$form, FormStateInterface $form_state) {
     // whatever FileTransfer object authorize.php creates for us.
     else {
       system_authorized_init('update_authorize_run_install', drupal_get_path('module', 'update') . '/update.authorize.inc', $arguments, $this->t('Update manager'));
+      $form_state->setRedirectUrl(system_authorized_get_url());
     }
-    $redirect_url = Url::fromUri('base://core/authorize.php');
-    $form_state->setRedirectUrl($redirect_url);
   }
 
 }
diff --git a/core/modules/update/src/Form/UpdateReady.php b/core/modules/update/src/Form/UpdateReady.php
index c6de99c..a417600 100644
--- a/core/modules/update/src/Form/UpdateReady.php
+++ b/core/modules/update/src/Form/UpdateReady.php
@@ -13,7 +13,6 @@
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\State\StateInterface;
 use Drupal\Core\Updater\Updater;
-use Drupal\Core\Url;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
@@ -136,15 +135,15 @@ public function submitForm(array &$form, FormStateInterface $form_state) {
         $this->moduleHandler->loadInclude('update', 'inc', 'update.authorize');
         $filetransfer = new Local(DRUPAL_ROOT);
         update_authorize_run_update($filetransfer, $updates);
+        $form_state->setRedirectUrl(system_authorized_batch_processing_url());
       }
       // Otherwise, go through the regular workflow to prompt for FTP/SSH
       // credentials and invoke update_authorize_run_update() indirectly with
       // whatever FileTransfer object authorize.php creates for us.
       else {
         system_authorized_init('update_authorize_run_update', drupal_get_path('module', 'update') . '/update.authorize.inc', array($updates), $this->t('Update manager'));
+        $form_state->setRedirectUrl(system_authorized_get_url());
       }
-      $redirect_url = Url::fromUri('base://core/authorize.php');
-      $form_state->setRedirectUrl($redirect_url);
     }
   }