Add log render nothing

app/controllers/dashboard_controller.rb

@@ -1,4 +1,4 @@
-class DashboardController < ApplicationController
+  class DashboardController < ApplicationController
   layout 'theme1'
   before_action :allow_all_origins, only: :error_report
 
@@ -10,6 +10,7 @@ class DashboardController < ApplicationController
     log = UserAppLog.new(params: params[:log])
     log.user = current_user
     log.save
+    render nothing: true
   end
 
   def close_window