Fix: julienschmidt#322 (julienschmidt#342)

Co-authored-by: yuanyuan <yuanyuan@umu.com>

Author: Fov6363

tree.go

@@ -435,6 +435,11 @@ walk: // Outer loop for walking the tree
 				return
 			}
 
+			if path == "/" && n.nType == static {
+				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) {

tree_test.go

@@ -699,3 +699,23 @@ func TestTreeWildcardConflictEx(t *testing.T) {
 		}
 	}
 }
+
+func TestRedirectTrailingSlash(t *testing.T) {
+	var data = []struct {
+		path string
+	}{
+		{"/hello/:name"},
+		{"/hello/:name/123"},
+		{"/hello/:name/234"},
+	}
+
+	node := &node{}
+	for _, item := range data {
+		node.addRoute(item.path, fakeHandler("test"))
+	}
+
+	_, _, tsr := node.getValue("/hello/abx/", nil)
+	if tsr != true {
+		t.Fatalf("want true, is false")
+	}
+}