filter out ActionView::Base Rendered internal gem

app/controllers/main_controller.rb

@@ -9,7 +9,7 @@ class MainController < ApplicationController
     logger.warn "a warning"
     logger.error "an error"
 
-    # raise "this is an error"
+    raise "this is an error"
     sleep 3
   end
 end

config/environments/development.rb

@@ -69,5 +69,12 @@ Rails.application.configure do
   # config.action_cable.disable_request_forgery_protection = true
 
   # Semantic Logger in console log only!
-  config.semantic_logger.add_appender(io: $stdout, formatter: BasicFormatter.new)
+  config.semantic_logger.add_appender(
+    io: $stdout,
+    formatter: BasicFormatter.new,
+    filter: ->log {
+      return true if log.name != "ActionView::Base"
+      log.message.exclude?("Rendered /") && log.message.exclude?("Rendered layout /")
+    },
+  )
 end