app/controllers/ahoy/messages_controller.rb in ahoy_email-2.1.1 vs app/controllers/ahoy/messages_controller.rb in ahoy_email-2.1.2

@@ -23,21 +23,24 @@
         url = params[:u].to_s
         signature = params[:s].to_s
         expected_signature = AhoyEmail::Utils.signature(token: token, campaign: campaign, url: url)
       end
 
+      redirect_options = {}
+      redirect_options[:allow_other_host] = true if ActionPack::VERSION::MAJOR >= 7
+
       if ActiveSupport::SecurityUtils.secure_compare(signature, expected_signature)
         data = {}
         data[:campaign] = campaign if campaign
         data[:token] = token
         data[:url] = url
         data[:controller] = self
         AhoyEmail::Utils.publish(:click, data)
 
-        redirect_to url
+        redirect_to url, **redirect_options
       else
         if AhoyEmail.invalid_redirect_url
-          redirect_to AhoyEmail.invalid_redirect_url
+          redirect_to AhoyEmail.invalid_redirect_url, **redirect_options
         else
           render plain: "Link expired", status: :not_found
         end
       end
     end