From 7d41987313dbfc002277c129c539e410587fd439 Mon Sep 17 00:00:00 2001
From: thinkerou <thinkerou@gmail.com>
Date: Sun, 3 Jul 2022 16:50:15 +0800
Subject: [PATCH] sync httprouter for fix bug

---
 tree.go | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/tree.go b/tree.go
index 956bf4dd..3f34b8ee 100644
--- a/tree.go
+++ b/tree.go
@@ -107,7 +107,8 @@ func countSections(path string) uint16 {
 type nodeType uint8
 
 const (
-	root nodeType = iota + 1
+	static nodeType = iota
+	root
 	param
 	catchAll
 )
@@ -173,6 +174,7 @@ walk:
 			child := node{
 				path:      n.path[i:],
 				wildChild: n.wildChild,
+				nType:     static,
 				indices:   n.indices,
 				children:  n.children,
 				handlers:  n.handlers,
@@ -604,6 +606,11 @@ walk: // Outer loop for walking the tree
 				return
 			}
 
+			if path == "/" && n.nType == static {
+				value.tsr = true
+				return
+			}
+
 			// No handle found. Check if a handle for this path + a
 			// trailing slash exists for trailing slash recommendation
 			for i, c := range []byte(n.indices) {