diff --git a/config/initializers/trusted_proxies.rb b/config/initializers/trusted_proxies.rb
new file mode 100644
index 000000000..27e9ee039
--- /dev/null
+++ b/config/initializers/trusted_proxies.rb
@@ -0,0 +1,7 @@
+module Rack
+  class Request
+    def trusted_proxy?(ip)
+      Rails.application.config.action_dispatch.trusted_proxies.any? { |proxy| proxy === ip }
+    end
+  end
+end