vue3 router transition warnings modal - vue-router

Question

here's what I did, I added a transition to the router link. and everything works as it is, but when I enter contact, the modal works because it is modal, but when I switch to other pages again, it does not switch.
App.vue
<template>
<header class="bg-white dark:bg-black">
<router-link to="/">Home</router-link>
<router-link to="/about">About</router-link>
<router-link to="/contact">Contact</router-link>
</header>
<div class="flex flex-row justify-center items-center mx-auto w-full">
<router-view v-slot="{ Component, route }">
<transition name="route" mode="out-in">
<component :is="Component" :key="route.path"/>
</transition>
</router-view>
</div>
</template>
<style>
.route-enter-from,
.route-leave-to {
opacity: 0;
transform: translateY(-30px);
}
.route-enter-active,
.route-leave-active {
transition: all 0.3s ease;
}
.route-enter-to,
.route-leave-from {
transform: translateY(0);
}
</style>
contact.vue
<template>
<button id="show-modal" #click="showModal = true">Show Modal</button>
<Teleport to="body">
<modal :show="showModal" #close="showModal = false">
<template #header>
<h3>custom header</h3>
</template>
</modal>
</Teleport>
</template>
<script>
import Modal from './Modal.vue'
export default {
components: {
Modal
},
data() {
return {
showModal: false
}
}
}
</script>
modal.vue
<script>
export default {
props: {
show: Boolean
}
}
</script>
<template>
<Transition name="modal">
<div v-if="show" class="modal-mask">
<div class="modal-wrapper">
<div class="modal-container">
<div class="modal-header">
<slot name="header">default header</slot>
</div>
<div class="modal-body">
<slot name="body">default body</slot>
</div>
<div class="modal-footer">
<slot name="footer">
default footer
<button
class="modal-default-button"
#click="$emit('close')"
>OK</button>
</slot>
</div>
</div>
</div>
</div>
</Transition>
</template>
<style>
.modal-mask {
position: fixed;
z-index: 9998;
top: 0;
left: 0;
width: 100%;
height: 100%;
background-color: rgba(0, 0, 0, 0.5);
display: table;
transition: opacity 0.3s ease;
}
.modal-wrapper {
display: table-cell;
vertical-align: middle;
}
.modal-container {
width: 300px;
margin: 0px auto;
padding: 20px 30px;
background-color: #fff;
border-radius: 2px;
box-shadow: 0 2px 8px rgba(0, 0, 0, 0.33);
transition: all 0.3s ease;
}
.modal-header h3 {
margin-top: 0;
color: #42b983;
}
.modal-body {
margin: 20px 0;
}
.modal-default-button {
float: right;
}
/*
* The following styles are auto-applied to elements with
* transition="modal" when their visibility is toggled
* by Vue.js.
*
* You can easily play with the modal transition by editing
* these styles.
*/
.modal-enter-from {
opacity: 0;
}
.modal-leave-to {
opacity: 0;
}
.modal-enter-from .modal-container,
.modal-leave-to .modal-container {
-webkit-transform: scale(1.1);
transform: scale(1.1);
}
</style>