Nuxt Express Middleware

In this guide, we'll dive into some of the best practices and utilities for building a production site or application. I dont know how to send the data to the page that will be loaded. Nuxt,作为一款优秀的基于Vue的服务端渲染(SSR)框架,既可以使用他的服务器渲染模式,也可以打包成静态页面,甚至也可以将其打包未SPA(单页面应用) 使用Nuxt官方模板初始化项目的时候,可选择不同的基于Nodejs的服务端框架,我选用的是Express,其他框架也类似。. 以middleware的方式运行nuxt nuxt. Vue CLI is fully configurable without the need for ejecting. Vì vậy điều kiện đầu tiên để tìm hiểu Nuxt. js to extend FileMaker using web viewers. Nuxt7 - Framework7-Vue Nuxt integration. com スクショ TL;DR Nuxtをexpressのmiddlewareで動かす コンテンツの取得はexpressでAPI ファイルの監視はchokidar クライアントへの…. How do you get Nuxt and TypeScript together? How do you set it up? Let's take a look!… continue reading → Oct 02 2019 on Chrome Top 10 Tips Chrome DevTools. the Truthspy team are amazing for giving us this. js is a framework that helps you build Server Rendered Vue. This tutorial is moderately complex, but is broken down into very consumable sections. js 时才会用到该配置。 例如 (nuxt. @jiangli373 我好像有点明白了! 我使用的是localhost:3000/api,那么我代理的请求的地址应该也是xxx/api/这种格式 对吗?. Nuxtで画面に横断的にMiddlewareを適用する #nuxtjs #vuejs - ジムには乗りたい. auth-module - 🔑 Authentication module for Nuxt. OK, I Understand. A truffle box that comes with everything you need to start using smart contracts from a Vue App, with Bootstrap styling and components. We use cookies for various purposes including analytics. NET Core SDK version you’re. js a la última versión. About the author. To call the next middleware; Where to go from here. js에서 개발 모드, 프로덕션 모드 정의하기. You can use Nuxt. In this article we’ll focus on how you can build robust web. Get help with that tough bug or make sure your Nuxt app is ready to deploy. Клонируйте или загрузите vuetify-nuxt-start проект с GitHub. js as a middleware. It's easy to get up and running with Nuxt. Custom Server. If you want to host your SPA app on. You just need to call it like any express middleware: 01-express-middleware. [Fork https://github. jsに触れていきたいと思います。 簡単なアプリケーションをつくる 任意のディレクトリを作成して下記コマンドを実行してください。 npm init npm install express --save 念のためExpress. Your app will. An open source REST and realtime API layer for modern applications. Access over 6,500 Programming & Development eBooks and videos to advance your IT skills. all react starter auth forms sanity. js 本身并无“中间件”(middleware)的概念。我推测你应该是在 Express/Koa 等 Web 框架中看到的这一概念。 就这类框架而言,其实这一词汇的含义等价于“插件”(plugin)——用于扩展功能的可拆装模块。具体来说就五花八门了,从简单的日志. I have tried to solve it by installing serve favicon to my app direction like (C:\Users\I am\Backup\Work node install serve-favicon)and got the same mistakeenter image description here. ♡ Connect/Express middleware to respond with. One of the challenge of using Firebase authentication on SSR architect (Nuxt. It's easy to get up and running with Nuxt. 3 expressの. js and Express 4, specifically implementing the local strategy with Mongoose and MongoDB. nuxt ←これができる ├── README. The project has been created on the Firebase console. 以前的博客使用的是Ghost,不过被攻击了,勒索我几百美元,还是算了吧,顺便说一句,数据备份很重要!前段时间学了Vue. I've been playing with Node. Instead, make it into a global middleware function. 安装 配置好node环境和npm以后,通过vue init nuxt/express **脚手架工具生成默认文件。 npm i && npm run dev后打开localhost:3000可看到官方提供的示例。 2 目录介绍 目前所用为1. This middleware implements JSON Web Token Authentication. Nuxt make server side rendering like a breeze and combining every pieces of vuejs ecosystem is the fuel of nuxtjs. Our goal at Serverless Inc. Currently, I work primarily with Ruby (Rails) and Javascript (React, Node, Express and Vue). Integrate Nuxt into Feathers. Normally this server-sent event source is implemented by the webpack dev server. render) Now we simply need to call this API in the asyncData section of our page. js know where we want to apply it, that is, on all pages or a select few. でも、Nuxtクラスが少し変わったので、SSR時にCloud Funtctionsも少し変更が必要に。。その時の備忘録 [IMPORTANT] Migration Guide Programmatic API / Middleware If not already done, please explicitly call nuxt. As a framework, Nuxt. Visit your firebase console and create a new project if you haven't already done that. When a compile event is triggered it sends down to the browser what it needs to reload. js express middleware that implements API versioning for route controllers That's why you can use nuxt. * Add the Nuxt middleware to your Feathers app */ // in Express the. Q&A seo: los sitios de Nuxt no se. layouts: true 来启用布局拆分。另外,为了更好地控制 Webpack 块拆分,可以使用 build. Karena connect sendiri adalah sebuah middleware, middleware yang terdaftar akan bekerja baik di nuxt start dan juga ketika digunakan sebagai middleware dengan penggunaan terprogram seperti express-template. Introduction In the context of web development, “middleware” usually means “part of an application that wraps the original application and adds some additional functionality”. Built with Nuxt. Инсталируйте ваши зависимости cd npm install # Or yarn install. js version 2. Add your own authentication. all react starter auth forms sanity. If you are creating a Single Page App you will definitely need a RESTful web service which supports CRUD operations. Q&A Lugar para inicializar Firebase en la aplicación Nuxt. Add the given plugin function to the middleware stack. nuxt에 대한 설명은 나중에 포스팅을 하도록 하겠습니다. In FileMaker Web Apps Part I of this series we focused on how you can use Vue. server/ ├ core/ │ └ nuxt. were open around how to use Feathers authentication to authenticate normal Express middleware. 前回、以下のリポジトリからカスタムドメインの利用を外した構成で、Nuxt. All you need to start is the Vue CLI. js / Express の役割 Express は マイクロサービスの API Aggregation を担当 SPA / SSR どちらからも呼ばれる API を提供 関連API をまとめて View に必要な形で返却 Nuxt. This improves interoperability, robustness, and makes writing middleware much more enjoyable. It's recommended to use it at the end of your middleware since it will handle the rendering of your web application and won't call next(). Creo que tienen que ver con estas lineas que agrege a mi server. Async Actions. tomcat的8080端口改了,因为安装了oracle,有一个端口使用8080冲突。mysql应该用的还是3036吧。 tomcat的登录很容易,我以前都安装好jdk,tomcat就可以了。. Q&A javascript: la tienda Vuex no está definida en el middleware NUXT. TL;DR: In this tutorial, I’ll show you how easy it is to build a web application with Go and the Gin framework and add authentication to it. The time has come! It's NuxtJS time. Not compatible with Express-style middleware. js is to use it programmatically; Simply require nuxt, and create a new instance of it by giving it the configuration it needs. Meteor, Express. js as a middleware. 类型: String 或 Nuxt JS Newsletter. We use cookies for various purposes including analytics. 0)+TypeScriptのアプリがAPI Gateway+AWS Lambdaにデプロイできることを確認しま. editorconfig ├──. Plug & play basic auth middleware for express vue-router-user-roles A Vue. js comes with a lot of features to help you in your development between the client side and the server side such as asynchronous data, middleware, layouts, etc. js - The Vue. Nuxt Validate - Simple Nuxt input validation module using vee-validate. I've tried to differentiate them as much as I could in the following post, but if you're confused reread carefully and try to sort it out 😅 You can find a working example of what I'm talking next in the koa-nuxt-example repository; Shaped for express. I suggest to add `build. Originally developed to handle Walmart's Black Friday scale, hapi continues to be the proven choice for enterprise-grade backend needs. js,一个 React 的服务端渲染应用框架。几小时后,与 Next. We add our Nuxt App as a Express Middleware. Тем более, что Nuxt обрабатывает все базовые настройки хранилища на основе модулей, и вам не нужно беспокоиться об этом. js ├── package-lock. Focus on writing *. Использование Middleware для обмена логикой через маршруты. json contents. js programmatically를 사용할 때. Exemple avec Express: const { Nuxt, Builder } = require ('nuxt'). The middleware will attempt to compress response bodies for all request that traverse through the middleware, based on the given options. nuxt-starter. First, a good middleware has a responsibility to be pluggable and self-sufficient. It was originally developed for Slim but can be used with any framework using PSR-7 style middlewares. Middlewares are often used in the context of Express. In this article, we are going to see how to glue the existing app with Socket. 因为连接本身是一个中间件,所以注册的中间件既可以用于nuxt start,也可以用作具有编程用法的中间件,如express-template。Nuxt Modules还可以使用this. That's why you can use nuxt. Kind Regards. 1 ys blueimp-file-upload File Upload widget with multiple file selection, drag&drop support, progress bar, validation and preview images, audio and video for jQuery. I would like to name this tutorial like «Simple Nuxt Authentication» or something else with the word simple in the title, but this topic is not simple. You can see here how to deploy express on google/firebase cloud functions, where nuxt can be used as an express middleware, just like it is in your template. 安装 配置好node环境和npm以后,通过vue init nuxt/express **脚手架工具生成默认文件。 npm i && npm run dev后打开localhost:3000可看到官方提供的示例。 2 目录介绍 目前所用为1. js ├── package-lock. Returns the compression middleware using the given options. Instead, make it into a global middleware function. For the sake of understanding how to consume Restful API's, this tutorial will show how to make simple AJAX requests to the Cosmic JS API in order to retrieve, update, and delete. In this article we'll focus on how you can build robust web. js에서 개발 모드, 프로덕션 모드 정의하기. dev는 nuxt build, nuxt start, nuxt generate 명령어로 강제로 false가 됩니다. To get a list of available commands you can run to create controllers, models and so on: adonis --help. Nuxt make server side rendering like a breeze and combining every pieces of vuejs ecosystem is the fuel of nuxtjs. VULTR provides high performance cloud compute environment for you. Here's what that would look like in Express. I'm available for remote projects! Please feel free to contact me. editorconfig ├──. A simple Node app built on Express using Babel. So I want to make an Express Middleware to handle this error, I tried several ways but this never is being called when that endpoint is called. OK, I Understand. Nuxt のコマンドを使う場合 nuxt build プロジェクト作成時の「Choose rendering mode Universal (SSR)」で「Single Page App」を選んだ場合は dist ディレクトリにファイルがビルドされます。 nuxt. Gulp vs Grunt vs Webpack: Comparison of Build Tools / Task Runners 17/03/2017 - 18:02 Only a few years ago, usage of JavaScript build tools would sound ridiculous, due to the fact that JS is interpreted by a browser and it isn't compiled. js App with express middleware that consumes swapi. Because connect itself is a middleware, registered middleware will work with both nuxt start and also when used as a middleware with programmatic usages like express-template. I came across this Google+ post mentioning this StackOverflow post in which someone is quite wisely asking whether the express. By using a configuration file Nuxt makes it very easy to specify the details of the rendering process. Want a client-side app? Use SPA mode. is to give developers, teams and orgs all of the tools they need to build and operate serverless applications, in one simple, powerful & elegant experience The Serverless Framework. Middleware are custom functions that are executed prior to rendering a page. Its main scope is UI rendering while abstracting away the client – server distribution. com really just proved reliability to me. It is similar to Next for React and Angular Universal for Angular. js as a middleware. Simply put, Nuxt. jsを組み込む Nuxt. js 가 여러분을 도와줄 수 있습니다. js can also be used to build static generated Vue. js server framework, most of the UWA frameworks render function are shaped for it. Can someone help me understand how to pass data from post request to the nuxt page that is loaded. Nuxt 的 middleware判断用户是否登录。由于components中没法使用fetch,页面刷新时,middleware已经执行了,此时vuex中是没有参数的,就判断为用户没有登录? mongoose 获取内嵌数组的长度,有没有更好的办法,或者说是既能返回总数也能进行分页?. json pages server store. It's recommended to use it at the end of your middleware since it will handle the rendering of your web application and won't call next(). js - Leaflet. server/ ├ core/ │ └ nuxt. Check freelancers' ratings and reviews. ユニバーサルアプリをNuxt. One of the biggest selling points of the framework is that it is a meta-framework for universal applications – making universal apps easier. We export the Express App to use it in the proxy. 株式会社LIGのフロントエンドエンジニア・ライダーが、 Vueアプリケーション作成用のフレームワーク「Nuxt」内にサーバ側固有の処理を持たせることができる「serverMiddleware」の実装を解説します。. Code Splitting With Webpack 6. /api/posts')) app. Add your own authentication. Watch Queue Queue. Note that this article is not intended to teach you how to create/start an express server. Be aware that both Nuxt and Koa use the concepts of context (ctx) & middleware. With the release of Express 4 it has gotten even easier to create RESTful APIs. /api/posts')) app. 前言 今天抽空过了遍nuxt文档,写了个实践demo,关于nuxt我已经断断续续看了好几遍了,自我感觉也算是入门了吧,从开发到上线心里都有底。后期打算在项目用起来的是nuxt框架,一些函数工具库,比如ramda,lodash等等,后台服务估计会使用### fastify 这个库. In turn, this will bundle the whole Express app into a single lambda function and tie it to an API Gateway endpoint. Nuxtjs gives server side rendering and uses express js as backend server. I've tried to differentiate them as much as I could in the following post, but if you're confused reread carefully and try to sort it out 😅 You can find a working example of what I'm talking next in the koa-nuxt-example repository; Shaped for express. In this article we’ll focus on how you can build robust web portals that use FileMaker as the backend and Vue. jsを組み込む Nuxt. でも、Nuxtクラスが少し変わったので、SSR時にCloud Funtctionsも少し変更が必要に。。その時の備忘録 [IMPORTANT] Migration Guide Programmatic API / Middleware If not already done, please explicitly call nuxt. $ yarn add aws-serverless-express axios express nuxt. If you want to host your SPA app on. js) is understanding how the data flow goes in deep, carrying data from the browser to web server is a bit complex, topics such as Vuex, middleware, express-middleware and nuxt-plugin can not miss. 株式会社LIGのフロントエンドエンジニア・ライダーが、 Vueアプリケーション作成用のフレームワーク「Nuxt」内にサーバ側固有の処理を持たせることができる「serverMiddleware」の実装を解説します。. Can someone help me understand how to pass data from post request to the nuxt page that is loaded. js to handle our API endpoints. Nuxt js Tutorial For Beginners 2018. We will only need one function because it will run the Nuxt rendering. To get a list of available commands you can run to create controllers, models and so on: adonis --help. js is an amazing JavaScript framework which you can use to build highly engaging user interfaces and single page applications. Serverless Architectures are new and therefore require a shift in how we previously thought about architectures & workflows. 0)+TypeScriptのアプリがAPI Gateway+AWS Lambdaにデプロイできることを確認しま. js & GraphQL with Gridsome (Airtable Database Example) An Introduction to API-First CMS with Directus' Open Source, Headless CMS A Tutorial to Bundle Cockpit CMS & Nuxt. In this article we’ll focus on how you can build robust web. Using node-sass-middleware to serve scss files. js的当前项目。 Nuxt. listen (port, host). jsでログインをどうやるか、そしてCookieからlocalStorageへ. I've seen publishing nuxt on firebase as middleware for express here and there, Can I go without express? I tried to do that. js is a framework that helps you build server-rendered Vue. js are probably your best bets out of the 8 options considered. js as the frontend. js server framework, most of the UWA frameworks render function are shaped for it. jsにTypeScriptを適用したプロジェクトとして下記をよく利用させてもらっています。. I’m building a desktop app, migrating from Nuxt to Quasar for two reasons: the in-house support that Quasar offers to build Electron apps, and some unnecessary complications - for my specific case - related to Nuxt (which is great, don’t get me wrong). js passport、vuex-persistedstateを使ったログイン認証. 这篇文章主要介绍了详解nuxt路由鉴权(express模板),文中通过示例代码介绍的非常详细,对大家的学习或者工作具有一定的参考学习价值,需要的朋友们下面随着小编来一起学习学习吧. js as a middleware. Nuxt is a framework for creating Universal Vue Applications, aka isomorphic JavaScript Applications. Nuxt uses convention over configuration approach and integrates Vuex out of the box is the only way to navigate without a full page reload; In Nuxt plugins are being run before middleware both on the client- and server-side, unless you configure them not to run on a server with ssr: false config option. Can someone help me understand how to pass data from post request to the nuxt page that is loaded. I'm back with more Chrome DevTools tips! Check it out!… continue reading → Sep 30 2019 on Vuejs Vuetify Forms and. Example with Express: const { Nuxt, Builder } = require ('nuxt') const app = require. It provides a third-party extension point between dispatching an action, and the moment it reaches the reducer. Middleware and Nuxt router (Express. 安装 配置好node环境和npm以后,通过vue init nuxt/express **脚手架工具生成默认文件。 npm i && npm run dev后打开localhost:3000可看到官方提供的示例。 2 目录介绍 目前所用为1. Tip: Use Bit to share and reuse your Vue components between apps. A truffle box that comes with everything you need to start using smart contracts from a Vue App, with Bootstrap styling and components. Quite a few frameworks have built-in HTTP APIs. buefy-shop - Sample shop, open source, built with Nuxt, Stripe, Firebase, Bulma and Serverless Functions. js express middleware that implements API versioning for route controllers. is to give developers, teams and orgs all of the tools they need to build and operate serverless applications, in one simple, powerful & elegant experience The Serverless Framework. It patches into the regular webpack middleware and listens for compile events. This walkthrough stems from Tree Shaking and Development. By continuing to use Pastebin, you agree to our use of cookies as described in the Cookies Policy. js Server Middleware Comparison. Using node-sass-middleware to serve scss files. How it Works. Personally I find the code written in React is difficult to read, while Angular has a steap learning curl. Compare Nuxt. One of the challenge of using Firebase authentication on SSR architect (Nuxt. js, Redis, and Spotify. editorconfig ├──. Integrate Nuxt into Feathers. js 어플리케이션을 정해진 규격에 맞게 만드는 프레임워크라고 할 수 있습니다. javascript – Cómo actualizar Nuxt. nuxt ←これができる ├── README. Feathers is a web-framework for creating real-time applications and REST APIs using JavaScript or TypeScript with Node. Authentication with. most middleware (like favicon) is no longer bundled with express and must be installed separately. For $250 an hour, get technical support, advice, code reviews, and development from the Nuxt core team: Hire Nuxt on. Vue is just right. Watch Queue Queue. First, a good middleware has a responsibility to be pluggable and self-sufficient. JS application more enjoyable. You can see here how to deploy express on google/firebase cloud functions, where nuxt can be used as an express middleware, just like it is in your template. js là một framework mạnh mẽ giúp chúng ta xây dựng trang web một cách đơn giản sử dụng Vue. Expressには、次のミドルウェア機能が組み込まれています。 express. Simply put, Nuxt. Check freelancers' ratings and reviews. Di sana saya membuat satu buah computed dengan nama ‘isLogin’ yang mengambil nilai dari state vuex. دانلود فیلم آموزشی Nuxt. This video is unavailable. 1- Setup Facebook Page and Facebook Application. It helps you. Getting started with Nuxt. render) Now we simply need to call this API in the asyncData section of our page. Consulting from the Nuxt team. SSRなNuxt、リロードするとstoreから認証情報が消えてしまい、 認証状態で初期レンダリングできないのつらいなとおもっていたら、 Nuxtのサンプルがよさげだったので、自分用に再整理してみた。. js #2 Advent Calendar 2018の4日目の投稿となります。Nuxt. 前回、以下のリポジトリからカスタムドメインの利用を外した構成で、Nuxt. By continuing to use Pastebin, you agree to our use of cookies as described in the Cookies Policy. A minor note: Nuxt. Watch Queue Queue. jsのテンプレートに、express-templateというのがある。 Nuxt. Once you have an understanding of serverMiddleware, you'll also take a look at how to use fetch to grab information from the backend of your application. * Add the Nuxt middleware to your Feathers app */ // in Express the. 🖥 Recommended VPS Service. // Give nuxt middleware to express app. FileMaker Web Portals with Vue. They both provide a great developer experience to set up Single-Page Applications, while providing Server-Side Rendering features. auth-module - 🔑 Authentication module for Nuxt. nuxt也有中间件的概念,不过这个中间件不是express的中间件,那么我们怎么添加到nuxt里面去呢? 怎么做. Lalu di body tepatnya di button saya tambahkan v-if, dan pada bagian setelah login saya tambahkan perintah commit untuk mengubah nilai state menjadi true. jsを組み込む Nuxt. It was fully synchronous. expressjs/express. md from package. use (redirectSSL) app. Gulp vs Grunt vs Webpack: Comparison of Build Tools / Task Runners 17/03/2017 - 18:02 Only a few years ago, usage of JavaScript build tools would sound ridiculous, due to the fact that JS is interpreted by a browser and it isn't compiled. Do Not Use bodyParser with Express. Alternative Nuxt Express Module The module adds express into Nuxt's connect middleware stack using Nuxt's module system. Some middleware modules that handle authentication like this are Passport, express-jwt, and express-session. js应用服务器呈现更加愉快。 此外,Nuxt. asyncData is a nuxt function that is executed both on rendering the content on the server side and. Search for Vuejs freelancers. 使用Express和Nuxt实现一个对SEO友好的CMS系统 人言落日是天涯,望极天涯不见家。 Posted by beyondouyuan on December 22, 2018. JS application more enjoyable. In this guide, we will build a different, asynchronous application. js は Express の Middleware として利用 Nuxt. One of the biggest selling points of the framework is that it is a meta-framework for universal applications - making universal apps easier. In turn, this will bundle the whole Express app into a single lambda function and tie it to an API Gateway endpoint. js applications (which will be our focus in this tutorial). jsをExpressのミドルに組み込んで動作させることができます。ここでは、Create Nuxt Appで生成したプロジェクト(サーバーサイドのフレームワークにExpressを選択)をもとに動作確認します。. jsのserverMiddlewareとしてExpress. By default, the KeystoneJS CLI starts an express-powered server for you when running the keystone dev or keystone start commands. jsをフロントエンドサーバーとして使う方法 12. render pada penghujung middleware Anda karena ia akan menangani pe-render-an pada aplikasi web Anda dan tidak akan memanggil next(). After seeing the advantages of this design, a similar implementation was designed for Vue called Nuxt. js applications easily. 2019-09-02 nuxt-js firebase. 미들웨어와 API 만을 사용하여 서버를 구성해야 할 수도 있기에, Nuxt. I've seen publishing nuxt on firebase as middleware for express here and there, Can I go without express? I tried to do that. 以middleware的方式运行nuxt nuxt. and Nuxt for the artisan. Can someone help me understand how to pass data from post request to the nuxt page that is loaded. render 函数,把 Nuxt. Allow users to concurrently edit a document and see each other's changes. Let’s see a quick demo! Nuxt is fully customisable with a nuxt. This is because you can stop using callbacks, deal with errors faster, and because Koa itself is a very lightweight framework. js for SSR, SPA, Static Generated, PWA and more. jsにTypeScriptを適用したプロジェクトとして下記をよく利用させてもらっています。. 30k 484 issues 809 watchers: 200k 2. By using a configuration file Nuxt makes it very easy to specify the details of the rendering process. js Meta Framework to create complex, fast & universal web applications quickly. 実際にPush7というサービスのWebサイトはi18n化をmiddlewareで、メール受け付けをExpressで実装しました。 https://push7. I’m building a desktop app, migrating from Nuxt to Quasar for two reasons: the in-house support that Quasar offers to build Electron apps, and some unnecessary complications - for my specific case - related to Nuxt (which is great, don’t get me wrong). js as a middleware. js 服务端的中间件。 例如,结合 Express. 今回からExpress. 以前的博客使用的是Ghost,不过被攻击了,勒索我几百美元,还是算了吧,顺便说一句,数据备份很重要!前段时间学了Vue. This is because most of the complicated configurations associated with middleware, routing, state management and asynchronous data are baked into it. 一定要这样去写name,官网上也是这样说明的。 总结,嵌套路由(二级路由写法) 一,页面有个user. We use cookies for various purposes including analytics. My experience with Nuxpress. The time has come! It's NuxtJS time. 13-alpine npx create-nuxt-app cloudrun $ cd cloudrun $ ls README. com スクショ TL;DR Nuxtをexpressのmiddlewareで動かす コンテンツの取得はexpressでAPI ファイルの監視はchokidar クライアントへの…. In the basics guide, we built a simple todo application. But how nuxtjs have express this and where it is placed. were open around how to use Feathers authentication to authenticate normal Express middleware. optimization. Exemple avec Express: const { Nuxt, Builder } = require ('nuxt'). js에 미들웨어를 추가해서 해결하는 것이 권장사항입니다. The default mode for vue-router is hash mode - it uses the URL hash to simulate a full URL so that the page won't be reloaded when the URL changes.