1 files changed, 21 insertions, 0 deletions
diff --git a/app/controllers/concerns/google_syndication_csp.rb b/app/controllers/concerns/google_syndication_csp.rb
new file mode 100644
index 00000000000..c55debe448b
--- /dev/null
+++ b/app/controllers/concerns/google_syndication_csp.rb
@@ -0,0 +1,21 @@
+# frozen_string_literal: true
+
+module GoogleSyndicationCSP
+  extend ActiveSupport::Concern
+
+  ALLOWED_SRC = ['*.google.com/pagead/landing', 'pagead2.googlesyndication.com/pagead/landing'].freeze
+
+  included do
+    content_security_policy do |policy|
+      next unless helpers.google_tag_manager_enabled? || policy.directives.present?
+
+      connect_src_values = Array.wrap(
+        policy.directives['connect-src'] || policy.directives['default-src']
+      )
+
+      connect_src_values.concat(ALLOWED_SRC) if helpers.google_tag_manager_enabled?
+
+      policy.connect_src(*connect_src_values.uniq)
+    end
+  end
+end