From e81f4d3a86ff16e5bb59052934258a057ef6bdae Mon Sep 17 00:00:00 2001
From: Tyler Walker <tyler.walker7@protonmail.com>
Date: Thu, 11 Dec 2025 15:10:08 -0500
Subject: [PATCH] feat(protocol): Use on_error lifecycle hook if defined by
 consumer

---
 trame_server/protocol.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/trame_server/protocol.py b/trame_server/protocol.py
index fbdb2b7..3d33da9 100644
--- a/trame_server/protocol.py
+++ b/trame_server/protocol.py
@@ -189,7 +189,10 @@ def life_cycle_update(self, name):
 
     @exportRpc("trame.error.client")
     def js_error(self, message):
-        print(f" JS Error => {message}")
+        if self.server.controller.on_error.exists():
+            self.server.controller.on_error(message)
+        else:
+            print(f" JS Error => {message}")
 
     # ---------------------------------------------------------------