From d8fb7d0ab1694fe86edbd52668f84fb9bb9f4dcf Mon Sep 17 00:00:00 2001
From: Eduardo San Martin Morote <posva13@gmail.com>
Date: Mon, 2 Aug 2021 11:18:43 +0200
Subject: [PATCH] fix(router): invalidate ongoing navigation when unmounting

---
 src/router.ts | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/router.ts b/src/router.ts
index 4895b884c..c0ada2be9 100644
--- a/src/router.ts
+++ b/src/router.ts
@@ -923,7 +923,7 @@ export function createRouter(options: RouterOptions): Router {
     markAsReady()
   }
 
-  let removeHistoryListener: () => void
+  let removeHistoryListener: () => void | undefined
   // attach listener to history to trigger navigations
   function setupListeners() {
     removeHistoryListener = routerHistory.listen((to, _from, info) => {
@@ -1195,8 +1195,11 @@ export function createRouter(options: RouterOptions): Router {
       installedApps.add(app)
       app.unmount = function () {
         installedApps.delete(app)
+        // the router is not attached to an app anymore
         if (installedApps.size < 1) {
-          removeHistoryListener()
+          // invalidate the current navigation
+          pendingLocation = START_LOCATION_NORMALIZED
+          removeHistoryListener && removeHistoryListener()
           currentRoute.value = START_LOCATION_NORMALIZED
           started = false
           ready = false