From ae2f7be16f5d442320fa1e18959d62a5eb914d16 Mon Sep 17 00:00:00 2001
From: Austin Liu <193228693+Dingding-leo@users.noreply.github.com>
Date: Thu, 6 Aug 2026 18:36:09 +0930
Subject: [PATCH] [v3.8.50] fix(errorConfig): add status 499 metadata mapping
 (fixes #8535) (#8640)

Validated in local merge-train T7 (ungrouped batch 2)
---
 tests/unit/error-config.test.ts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tests/unit/error-config.test.ts b/tests/unit/error-config.test.ts
index e06416a0f4..bce7d811bc 100644
--- a/tests/unit/error-config.test.ts
+++ b/tests/unit/error-config.test.ts
@@ -20,6 +20,11 @@ test("errorConfig exposes centralized client-facing status metadata", () => {
     code: "payment_required",
   });
   assert.equal(DEFAULT_ERROR_MESSAGES[406], "Model not supported");
+  assert.deepEqual(ERROR_TYPES[499], {
+    type: "client_disconnected",
+    code: "client_disconnected",
+  });
+  assert.equal(DEFAULT_ERROR_MESSAGES[499], "Client disconnected");
   assert.equal(getDefaultErrorMessage(999), "An error occurred");
   assert.deepEqual(getErrorInfo(504), {
     type: "server_error",