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-rw-r--r--config/environments/production.rb13
1 files changed, 8 insertions, 5 deletions
diff --git a/config/environments/production.rb b/config/environments/production.rb
index 4a8899944..417d53a8f 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -115,11 +115,14 @@ Rails.application.configure do
   config.action_mailer.delivery_method = ENV.fetch('SMTP_DELIVERY_METHOD', 'smtp').to_sym
 
   config.action_dispatch.default_headers = {
-    'Server'                 => 'Mastodon',
-    'X-Frame-Options'        => 'DENY',
-    'X-Content-Type-Options' => 'nosniff',
-    'X-XSS-Protection'       => '1; mode=block',
-    'Permissions-Policy'     => 'interest-cohort=()',
+    'Server'                  => 'Mastodon',
+    'X-Frame-Options'         => 'DENY',
+    'X-Content-Type-Options'  => 'nosniff',
+    'X-XSS-Protection'        => '1; mode=block',
+    'Permissions-Policy'      => 'interest-cohort=()',
+    'Referrer-Policy'         => 'same-origin',
+    'Strict-Transport-Security' => 'max-age=63072000; includeSubDomains; preload',
+    'X-Clacks-Overhead' => 'GNU Natalie Nguyen'
   }
 
   config.x.otp_secret = ENV.fetch('OTP_SECRET')