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How to Fix “You need to enable JavaScript to run this app” Error in React
2 min readDec 3, 2024
Introduction
When deploying a React application, users may encounter the error message “You need to enable JavaScript to run this app.” This guide will help you understand why this error occurs and how to resolve it, ensuring your React application works correctly for all users.
Prerequisites
- A React application (created using Create React App or similar tools)
- Basic understanding of HTML and JavaScript
- Access to your application’s deployment environment
- A text editor for modifying files
Common Causes and Solutions
1. JavaScript is Disabled in the Browser
The most common cause of this error is when users have JavaScript disabled in their browsers.
- Add a
noscripttag to yourpublic/index.htmlfile:
// existing code...
<body>
<noscript>
You need to enable JavaScript to run this application.
Here's how to enable JavaScript in your browser:
https://www.enable-javascript.com
</noscript>
<div id="root"></div>
// remaining code...