lib/mailkick/url_helper.rb in mailkick-1.2.2 vs lib/mailkick/url_helper.rb in mailkick-1.3.0

@@ -1,8 +1,13 @@
 module Mailkick
   module UrlHelper
     def mailkick_unsubscribe_url(subscriber, list, **options)
       token = Mailkick.generate_token(subscriber, list)
-      mailkick.unsubscribe_subscription_url(token, **options)
+      url = mailkick.unsubscribe_subscription_url(token, **options)
+      if Mailkick.headers && headers["List-Unsubscribe"].nil?
+        headers["List-Unsubscribe-Post"] ||= "List-Unsubscribe=One-Click"
+        headers["List-Unsubscribe"] = "<#{url}>"
+      end
+      url
     end
   end
 end