Adds invisible_captcha to proposals, debates & sps

app/controllers/debates_controller.rb

@@ -11,7 +11,7 @@ class DebatesController < ApplicationController
 
   feature_flag :debates
 
-  invisible_captcha only: [:create, :update], honeypot: :subtitle
+  invisible_captcha only: [:create, :update], honeypot: :subtitle, on_timestamp_spam: :redirect_timestamp_spam
 
   has_orders %w{hot_score confidence_score created_at relevance}, only: :index
   has_orders %w{most_voted newest oldest}, only: :show
@@ -54,4 +54,8 @@ class DebatesController < ApplicationController
       Debate
     end
 
+    def redirect_timestamp_spam
+      redirect_to root_path, notice: InvisibleCaptcha.timestamp_error_message
+    end
+
 end