app/channels/stimulus_reflex/channel.rb in stimulus_reflex-3.5.0.pre8 vs app/channels/stimulus_reflex/channel.rb in stimulus_reflex-3.5.0.pre9

@@ -25,10 +25,29 @@
         if reflex
           reflex.rescue_with_handler(exception)
           reflex.logger&.error error_message
           reflex.error data: data, body: "#{exception} #{exception.backtrace.first.split(":in ")[0] if Rails.env.development?}"
         else
-          StimulusReflex.config.logger.error error_message
+          if exception.is_a? StimulusReflex::Reflex::VersionMismatchError
+            mismatch = "Reflex failed due to stimulus_reflex gem/NPM package version mismatch. Package versions must match exactly.\nNote that if you are using pre-release builds, gems use the \"x.y.z.preN\" version format, while NPM packages use \"x.y.z-preN\".\n\nstimulus_reflex gem: #{StimulusReflex::VERSION}\nstimulus_reflex NPM: #{data["version"]}"
+
+            StimulusReflex.config.logger.error("\n\e[31m#{mismatch}\e[0m") unless StimulusReflex.config.on_failed_sanity_checks == :ignore
+
+            if Rails.env.development?
+              CableReady::Channels.instance[stream_name].console_log(
+                message: mismatch,
+                level: "error",
+                reflex_id: data["reflexId"]
+              ).broadcast
+            end
+
+            if StimulusReflex.config.on_failed_sanity_checks == :exit
+              sleep 0.1
+              exit!
+            end
+          else
+            StimulusReflex.config.logger.error error_message
+          end
 
           if body.to_s.include? "No route matches"
             initializer_path = Rails.root.join("config", "initializers", "stimulus_reflex.rb")
 
             StimulusReflex.config.logger.warn <<~NOTE