Software⏱️ 2 min read📅 2026-06-03

How to Fix: Angular 2: 404 error occur when I refresh through the browser

Angular 2 routing issue with refresh error.

Quick Answer: Use the $routeProvider's onActivate event to redirect to the login page when the route changes.

📋 Table of Contents

  1. 🛑 Root Causes of the Error
  2. ✅ Best Solutions to Fix It
  3. 🎯 Final Words

Fixing the 404 error when refreshing a page in Angular 2 can be achieved by understanding how routing works and implementing it correctly. In this article, we will explore the root causes of the issue and provide two methods to fix it.

🛑 Root Causes of the Error

  • Angular 2 routing uses a different approach than traditional server-side routing. When you use Angular 2's built-in routing, it generates URLs in a specific format that includes parameters and query strings.

✅ Best Solutions to Fix It

Method 1: Using the appBase Property in Routing Configuration

  1. Step 1: In your routing configuration, add the appBase property to specify a base URL for all routes.

Method 2: Using the Loading Module and RouterOutlet

  1. Step 1: Create a loading module that imports the Loading component and use it in your routing configuration.

🎯 Final Words

By implementing these methods, you can fix the 404 error when refreshing a page in Angular 2 and ensure that your application loads correctly.

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