content_security_policy_nonce

# File actionpack/lib/action_dispatch/http/content_security_policy.rb, line 86
      def content_security_policy_nonce
        if content_security_policy_nonce_generator
          if nonce = get_header(NONCE)
            nonce
          else
            set_header(NONCE, generate_content_security_policy_nonce)
          end
        end
      end