Index: router.go
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/router.go b/router.go
--- a/router.go	(revision 3e817bcd279fe973725f82f147923b5981920457)
+++ b/router.go	(date 1613164585180)
@@ -336,6 +336,7 @@
 
 	var (
 		search  = path
+		searchLen = 0
 		n       int           // Param counter
 		pvalues = ctx.pvalues // Use the internal slice so the interface can keep the illusion of a dynamic slice
 
@@ -343,7 +344,7 @@
 		state [backTrackingDepth]struct {
 			nk kind
 			nn *node
-			ns string
+			searchLen int
 			np int
 		}
 		stateIndex int = -1
@@ -357,7 +358,7 @@
 
 		state[stateIndex].nk = nodeKind
 		state[stateIndex].nn = cn
-		state[stateIndex].ns = search
+		state[stateIndex].searchLen = searchLen
 		state[stateIndex].np = n
 	}
 
@@ -371,7 +372,8 @@
 
 		nodeKind = last.nk
 		cn = last.nn
-		search = last.ns
+		search = path[last.searchLen:]
+		searchLen = last.searchLen
 		n = last.np
 		valid = cn != nil
 		return
@@ -412,6 +414,7 @@
 
 		// The full prefix has matched, remove the prefix from the remaining search
 		search = search[l:]
+		searchLen = searchLen + l
 
 		// Finish routing if no remaining search and we are on an leaf node
 		if search == "" && cn.ppath != "" {
@@ -449,6 +452,7 @@
 			pvalues[n] = search[:i]
 			n++
 			search = search[i:]
+			searchLen = searchLen + i
 			continue
 		}