diff --git a/core/modules/path_alias/path_alias.services.yml b/core/modules/path_alias/path_alias.services.yml
index c36eee191e..b962e0207d 100644
--- a/core/modules/path_alias/path_alias.services.yml
+++ b/core/modules/path_alias/path_alias.services.yml
@@ -9,7 +9,7 @@ services:
     tags:
       - { name: path_processor_inbound, priority: 100 }
       - { name: path_processor_outbound, priority: 300 }
-    arguments: ['@path_alias.manager']
+    arguments: ['@path_alias.manager', '@config.factory']
   path_alias.manager:
     class: Drupal\path_alias\AliasManager
     arguments: ['@path_alias.repository', '@path_alias.whitelist', '@language_manager', '@cache.data']
diff --git a/core/modules/path_alias/src/PathProcessor/AliasPathProcessor.php b/core/modules/path_alias/src/PathProcessor/AliasPathProcessor.php
index 9959c9373f..f07dee7d4e 100644
--- a/core/modules/path_alias/src/PathProcessor/AliasPathProcessor.php
+++ b/core/modules/path_alias/src/PathProcessor/AliasPathProcessor.php
@@ -2,6 +2,7 @@
 
 namespace Drupal\path_alias\PathProcessor;
 
+use Drupal\Core\Config\ConfigFactoryInterface;
 use Drupal\Core\PathProcessor\InboundPathProcessorInterface;
 use Drupal\Core\PathProcessor\OutboundPathProcessorInterface;
 use Drupal\Core\Render\BubbleableMetadata;
@@ -20,14 +21,24 @@ class AliasPathProcessor implements InboundPathProcessorInterface, OutboundPathP
    */
   protected $aliasManager;
 
+  /**
+   * A config factory for retrieving required config settings.
+   *
+   * @var \Drupal\Core\Config\ConfigFactoryInterface
+   */
+  protected $config;
+
   /**
    * Constructs a AliasPathProcessor object.
    *
    * @param \Drupal\path_alias\AliasManagerInterface $alias_manager
    *   An alias manager for looking up the system path.
+   * @param \Drupal\Core\Config\ConfigFactoryInterface $config
+   *   A config factory for retrieving the site front page configuration.
    */
-  public function __construct(AliasManagerInterface $alias_manager) {
+  public function __construct(AliasManagerInterface $alias_manager, ConfigFactoryInterface $config) {
     $this->aliasManager = $alias_manager;
+    $this->config = $config;
   }
 
   /**
@@ -55,6 +66,34 @@ public function processOutbound($path, &$options = [], Request $request = NULL,
         $path = '/' . ltrim($path, '/');
       }
     }
+
+    // Look for paths sthat are not already the front page.
+    if ($path != '/') {
+      $system_config = $this->config->get('system.site');
+      if (!empty($system_config)) {
+        $front = $system_config->get('page.front');
+        $langcode = !empty($options['language']) ? $options['language']->getId() : NULL;
+
+        // Get path and alias for the configured frontpage setting
+        $alias_manager = \Drupal::service('path_alias.manager');
+        $front_path = $alias_manager->getPathByAlias($front, $langcode);
+        $front_alias = $alias_manager->getAliasByPath($front, $langcode);
+
+        // Replace the path and alias with default frontpage path
+        if (!empty($front_path) && $path === $front_path) {
+          $path = '/';
+        }
+        if (!empty($front_alias) && $path === $front_alias) {
+          $path = '/';
+        }
+      }
+    }
+
+    // The special path '<front>' links to the default front page.
+    if ($path === '/<front>') {
+      $path = '/';
+    }
+
     return $path;
   }