From dbb080d4d2cad6bfee825afbaaea8cf2a164f9d1 Mon Sep 17 00:00:00 2001
From: sma01 <sylvain.mina@erdil.fr>
Date: Fri, 5 Mar 2021 14:49:27 +0100
Subject: [PATCH] delete context during setup only if route is defined

---
 lib/router/router.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/router/router.ts b/lib/router/router.ts
index ee08c185..fc5fe803 100644
--- a/lib/router/router.ts
+++ b/lib/router/router.ts
@@ -429,9 +429,10 @@ export default abstract class Router<T extends Route> {
 
     for (i = 0, l = partition.exited.length; i < l; i++) {
       route = partition.exited[i].route;
-      delete route!.context;
 
       if (route !== undefined) {
+        delete route!.context;
+
         if (route._internalReset !== undefined) {
           route._internalReset(true, transition);
         }