javascript - NavigationDuplicated Navigating to current location ("/search") is not allowed

Question

When I want to do a search multiple times it shows me the NavigationDuplicated error. My search is in the navbar and the way I have configured the search is to take the value using a model and then pass the value as a parameter to the ContentSearched component, and then receive the value of the search in that component.

I know the right way is to use an emitter, but I still don't know how to learn to use it. To access the emit is context.emit('', someValue)

NavigationDuplicated?{_name: "NavigationDuplicated", name: "NavigationDuplicated", message: "Navigating to current location ("/search") is not allowed", stack: "Error?    at new NavigationDuplicated (webpack-int…node_modules/vue/dist/vue.runtime.esm.js:1853:26)"}

NavBar.vue

<template>
  <nav class="navbar navbar-expand-lg navbar-dark bg-nav" v-bind:class="{'navbarOpen': show }">
    <div class="container">
      <router-link to="/" class="navbar-brand">
        <img src="../assets/logo.png" alt="Horizon Anime" id="logo">
      </router-link>

      <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation" v-on:click.prevent="toggleNavbar">
        <span class="navbar-toggler-icon"></span>
      </button>

      <div class="collapse navbar-collapse" id="navbarSupportedContent" v-bind:class="{'show': show }">
        <ul class="navbar-nav mr-auto">
          <li class="nav-item">
            <router-link class="nav-link" to="/" ><i class="fas fa-compass"></i> Series</router-link>
          </li>
          <li class="nav-item">
            <router-link class="nav-link" :to="{name: 'EpisodesSection'}" ><i class="fas fa-compact-disc"></i> Episodios</router-link>
          </li>
          <li class="nav-item">
            <router-link class="nav-link" :to="{name: 'MovieSection'}" ><i class="fas fa-film"></i> Peliculas</router-link>
          </li>
        </ul>
        <div class="search-bar">
          <form class="form-inline my-2 my-lg-0">
            <input class="form-control mr-sm-2" v-model="query" type="search" placeholder="Buscar películas, series ..." aria-label="Search">
            <button class="btn btn-main my-2 my-sm-0" @click.prevent="goto()" type="submit"><i class="fas fa-search"></i></button>
          </form>
        </div>
      </div>
    </div>
  </nav>
</template>

<script>
  import {value} from 'vue-function-api';
  import {useRouter} from '@u3u/vue-hooks';

  export default {
    name: "NavBar",
    setup(context){
      const {router} = useRouter();
      const query = value("");

      let show = value(true);
      const toggleNavbar = () => show.value = !show.value;      
      
      const goto = () =>{
        let to = {name: 'ContentSearched' , params:{query: query}}
        router.push(to);
      };
        
      return{
        show,
        toggleNavbar,
        goto,
        query
      }
    }
  }
</script>

ContentSearched.vue

<template>
   <div class="container">
     <BoxLink/>
    <main class="Main">
      <div class="alert alert-primary" role="alert">
        Resultados para "{{query}}"
      </div>
      <div v-if="isLoading">
        <!-- <img class="loading" src="../assets/loading.gif" alt="loading"> -->
      </div>
      <div v-else>
        <ul class="ListEpisodios AX Rows A06 C04 D02">
          <li v-for="(content, index) in contentSearched" :key="index">
            <div v-if="content.type === 'serie'">
              <Series :series="content"/>
            </div>
            <div v-if="content.type === 'pelicula'">
              <Movies :movies="content"/>
            </div>
          </li>
        </ul>
      </div>
    </main>
  </div>
</template>


<script>
  import {onCreated} from "vue-function-api"
  import {useState , useRouter , useStore} from '@u3u/vue-hooks';
  import BoxLink from "../components/BoxLink";
  import Movies from "../components/Movies";
  import Series from "../components/Series";

  export default{
    name: 'ContentSearched',
    components:{
      BoxLink,
      Movies,
      Series
    },
    setup(context){
      const store = useStore();
      const {route} = useRouter();

      const state = {
        ...useState(['contentSearched' , 'isLoading'])
      };

      const query = route.value.params.query;

      onCreated(() =>{
        store.value.dispatch('GET_CONTENT_SEARCH' , query.value);
      });
      return{
        ...state,
        query,
      }
    }
  };
</script>

Answer 1

This happened to me when I had a router-link pointing to the same route. e.g. /products/1.

The user is able to click on the products, but if a product was already clicked (and the component view was already loaded) and the user attempts to click it again, the error/warning shows in the console.

You can learn more on the github issue..

Posva, one of the main contributors of vue-router suggests:

router.push('your-path').catch(err => {})

However, if you don't want to have a catch block which does nothing, in order to solve the issue you can compare the router navigation with the current route and only navigate if they differ:

const path = `/products/${id}`
if (this.$route.path !== path) this.$router.push(path)

Note: $route is an object provided by vue-router to every component. See The Route Object for more info.