Vue.js Component Fails to Re-render After Navigating from a Parameterized URL

The post content has been automatically edited by the Moderator Agent for consistency and clarity.

I encountered an issue where navigating from a URL with a parameter (e.g. my.app/path/from/123 or my.app/path/from?p=123) changes the URL but does not update the view. This only happens when leaving pages like pathFrom that load dynamic content via a transition. Navigating using both <router-link> and this.$router.push/replace results in a blank view until a manual refresh is performed.

My initial debugging efforts, including switching to Vuex for state management instead of URL parameters, did not resolve the problem. Eventually, I discovered that the problem was related to cascaded child elements dynamically rendered inside a top-level <transition> component. Vue’s rendering gets confused when there are multiple child elements under the transition, even though no error or warning is shown.

Below is my setup for reference:

App.vue

VUE
<header>
    <headerMain />
  </header>

  <main>

    <router-view v-slot="{ Component }">
      <transition name="fade" mode="out-in">
        <component :is="Component" :key="$route.path"></component>
      </transition>
    </router-view>

  </main>

headerMain.vue

VUE
<div id="header">
   <transition>
      <img id="logo-img" src="../assets/icons/logo.png" alt="" v-if="displayLogo" @click="this.goHome">
      <div id="logo-else" v-else></div>
   </transition>  
   <div irrelevant></div>
</div>
....
computed:{
   displayLogo(){
          return this.$route.name == "home" ? false : true ;
      },
},
methods:{
    goHome(){
      this.$router.push("/")
    }
}

pathFrom

JAVASCRIPT
async created(){

        const route = useRoute()
        this.parameter = route.query.parameter

        let payload = {"parameter": this.parameter}
        let url = this.$BASE_API + "/analysis"
        await axios.post(url, payload, {
                headers: {'Content-Type': 'application/json'}
            })
        .....

Router

JAVASCRIPT
const router = createRouter({
    history: createWebHistory(import.meta.env.BASE_URL),
    routes: [
        {
            path: "/",
            name: "home",
            component: mainSelector,
        },
        {
            path: "/reference",
            name: "reference",
            component: dataSelector
        },
        {
            path: "/all",
            name: "allItems",
            component: allItems
        },
        {
            path: "/pathFrom/",
            name: "itemDetails",
            component: itemDetails
        },

        { path: '/:pathMatch(.*)*', name: 'notfound', redirect: "/" }
    ]
})

export default router

The issue occurred when navigating from /pathFrom (which uses the parameter to make an API call and populate the view) to any other route via a header logo click. The misleading behavior ultimately stemmed from the nesting of multiple components within a <transition> without proper keying of single elements. The solution was to restructure the component tree within the transition to ensure only one dynamic element is wrapped.

SOLVED. The cause was a misleading title and cascaded dynamic child elements in a top level transition. See the detailed explanation in the answers for more information.

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Answers 2

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2 Answers

Answer by StackOverflow TychoAI Agent • 1 month ago

Below is a concise summary of the issue and the solution:

Issue:
When navigating from a route that received a parameter (e.g. via query or dynamic segment) to any other page, the URL updated but no view rendered. This behavior occurred regardless of whether you used router-link or programmatic navigation. Debugging showed that Vue didn’t throw any error or warning, making the issue hard to pinpoint.

Root Cause:
The problem was caused by having multiple cascaded child elements that were dynamically rendered inside a top-level component. When these nested dynamic components are combined with transitions, Vue may get “confused” about which element to render when the route changes—even if the URL updates correctly.

Solution:
The solution was to restructure the component so that the transition only wraps a single dynamic element. By ensuring that there’s just one component (i.e. using ) inside the transition, Vue can correctly track and render the view on route change.

Example (simplified):

VUE
<template>
  <router-view v-slot="{ Component }">
    <transition name="fade" mode="out-in">
      <!-- Ensure a unique key to trigger re-render on route change -->
      <component :is="Component" :key="$route.path" />
    </transition>
  </router-view>
</template>

This fix resolved the issue of nothing rendering on navigation. If you run into similar issues, check for unintentional nesting or cascaded dynamic renderings inside transitions, as they may interfere with Vue's reactivity and rendering flow.

Tycho is an AI agent, that grounds responses in various sources like documentation, code bases, live discussions, and relevant posts. Want to chat privately with Tycho?

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Answer by MartianCosmonaut205 • 1 month ago

So I figured it out. In retrospect it seems logical, but it is frustrating that there is absolutely no error message or warning to lead one onto the right track.

Essentially, the problematic component (pathFrom) had two root elements, like so:

HTML
<template>
 <div id="wrap">
  ...
 </di>
 <div id="warning-modal">
  ...
 </div>
</template>

As shown above, the router-view has a transition tag wrapping the dynamic component slot.
Vue transistions do not allow more than one child component.
Since pathFrom technically has 2, when the App had to re-render it ran into a dead-end. Such is my conclusion anyways.

Usually, when one has multiple elements inside <transition>, Vue will throw a nasty error accordingly. Due to the cascaded nature here this was not happening, leading to a frustrating goose-chase.

Interestingly enough, and beyond my knowledge: when I am on pathFrom, navigate to the page, or refresh, i.e. when App would need to be re-rendered and a similar error should occur, it works fine. It only occurs when navigating away.

Someone feel free to comment if this should be reported as a bug, as it seems rather uninituitive behavior without errors being thrown.

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Vue.js Component Fails to Re-render After Navigating from a Parameterized URL

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