diff --git a/core/lib/Drupal/Core/DependencyInjection/Compiler/CorsCompilerPass.php b/core/lib/Drupal/Core/DependencyInjection/Compiler/CorsCompilerPass.php
index 3c66ad6..6f58ff7 100644
--- a/core/lib/Drupal/Core/DependencyInjection/Compiler/CorsCompilerPass.php
+++ b/core/lib/Drupal/Core/DependencyInjection/Compiler/CorsCompilerPass.php
@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Contains \Drupal\Core\DependencyInjection\Compiler\CorsCompilerPass.
- */
-
 namespace Drupal\Core\DependencyInjection\Compiler;
 
 use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
diff --git a/core/tests/Drupal/KernelTests/Core/HttpKernel/CorsIntegrationTest.php b/core/tests/Drupal/KernelTests/Core/HttpKernel/CorsIntegrationTest.php
index 01433b6..e73efa3 100644
--- a/core/tests/Drupal/KernelTests/Core/HttpKernel/CorsIntegrationTest.php
+++ b/core/tests/Drupal/KernelTests/Core/HttpKernel/CorsIntegrationTest.php
@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Contains \Drupal\KernelTests\Core\HttpKernel\CorsIntegrationTest.
- */
-
 namespace Drupal\KernelTests\Core\HttpKernel;
 
 use Drupal\Core\DependencyInjection\ContainerBuilder;
@@ -61,7 +56,7 @@ public function testCrossSiteRequest() {
     $request = Request::create('/test-page');
     $request->headers->set('Origin', '');
     $cors_config['enabled'] = TRUE;
-    $cors_config['allowedOrigins'] = array('http://example.com');
+    $cors_config['allowedOrigins'] = ['http://example.com'];
 
     $this->corsConfig = $cors_config;
     $this->container->get('kernel')->rebuildContainer();
diff --git a/sites/default/default.services.yml b/sites/default/default.services.yml
index 511d25c..b310535 100644
--- a/sites/default/default.services.yml
+++ b/sites/default/default.services.yml
@@ -158,14 +158,14 @@ parameters:
    # Read https://developer.mozilla.org/en-US/docs/Web/HTTP/Access_control_CORS
    # for more information about the topic in general.
    # Note: By default the configuration is disabled.
-   cors.config:
-     enabled: false
-     # Specify allowed headers, like 'x-allowed-header'.
-     allowedHeaders: []
-     # Specify allowed request methods, specify '*' to allow all possible ones.
-     allowedMethods: []
-     # Configure requests allowed from specific origins.
-     allowedOrigins: ['*']
-     exposedHeaders: false
-     maxAge: false
-     supportsCredentials: false
+  cors.config:
+    enabled: false
+    # Specify allowed headers, like 'x-allowed-header'.
+    allowedHeaders: []
+    # Specify allowed request methods, specify '*' to allow all possible ones.
+    allowedMethods: []
+    # Configure requests allowed from specific origins.
+    allowedOrigins: ['*']
+    exposedHeaders: false
+    maxAge: false
+    supportsCredentials: false