From a94442b001287255ae1ffe9db923e744946faa30 Mon Sep 17 00:00:00 2001
From: yusing <yusing.wys@gmail.com>
Date: Tue, 24 Feb 2026 01:36:54 +0800
Subject: [PATCH] fix(rules): prevent appending empty parts in splitPipe
 function

---
 internal/route/rules/on.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/internal/route/rules/on.go b/internal/route/rules/on.go
index bb6d6925..cd6af3fc 100644
--- a/internal/route/rules/on.go
+++ b/internal/route/rules/on.go
@@ -604,7 +604,9 @@ func splitPipe(s string) []string {
 
 	// drop trailing empty part.
 	if start < len(s) {
-		result = append(result, strings.TrimSpace(s[start:]))
+		if part := strings.TrimSpace(s[start:]); part != "" {
+			result = append(result, part)
+		}
 	}
 
 	return result