Material-UI is a user interface library that provides predefined and customizable React components for faster and easy web development, these Material-UI components are based on top of Material Design by Google. In this article let’s discuss the Hidden component in the Material-UI library.
When using Material-UI (also known as MUI) with React, it's important to set up a Content Security Policy (CSP) to ensure that your app is secure against cross-site scripting (XSS) attacks. A set of rules that specify which content can be loaded by web page is known as CSP. It helps to prevent XSS attacks on the web page.
const csp = `
default-src 'self';
script-src 'self';
style-src 'self';
`;
Basic Setup: Follow the below steps to create the application.
Step 1: Create a folder called example. Open your command prompt and navigate to the example folder. Now type in the following command
npx create-react-app
Step 2: Create a folder called component inside the src folder. Inside that component, create a file called Main.js.
cd src
mkdir component
touch Main.js
Step 3: Again, in the same folder, open the command prompt and type in the following command to install React MUI library.
npm install @mui/material @emotion/react @emotion/styled
Step 4: Install the React 'helmet' library.
npm install helmet
npm install react-helmet
npm install react-helmet-async
Step 5: Importing the 'helmet' library.
import { Helmet } from "react-helmet";
Project Structure: Once the installation is complete, you will have the modules required. Your folder structure should look something like this.
Example 1: Setting up a CSP with React MUI using the 'helmet' library. It is used as the document head manager for React-based applications.
- App.js
import React from "react";
import Main from "./component/Main";
import { Helmet } from "react-helmet";
const csp = `
default-src 'self';
script-src 'self' 'unsafe-inline';
style-src 'self' 'unsafe-inline';
img-src 'self' data:;
font-src 'self' data:;
`;
console.log({ csp });
const App = () => {
return (
<>
<Helmet>
<meta http-equiv="Content-Security-Policy" content={csp} />
</Helmet>
<Main />
</>
);
};
export default App;
- Main.js
import React from "react";
function Main() {
return (
<>
<div>
GeeksforGeeks
<br />
Content Security Policy in MUI
</div>
</>
);
}
export default Main;
Step to run the application: Open your command prompt in the same folder, and type in the following command
npm start
Output:
Example 2: Setting up CSP using the 'react-helmet-async' library.
- App.js
import React from 'react';
import Main from './component/Main';
import { HelmetProvider } from 'react-helmet-async';
import { CssBaseline } from '@material-ui/core';
function App(){
return(
<>
<HelmetProvider>
<CssBaseline />
<Main/>
</HelmetProvider>
</>
);
};
export default App;
- Main.js
import React from 'react';
import { Helmet } from 'react-helmet-async';
import { Button } from '@material-ui/core';
function Main() {
return (
<>
<Helmet>
<meta
http-equiv="Content-Security-Policy"
content="
default-src 'self';
script-src 'self' 'unsafe-inline' 'unsafe-eval';
style-src 'self' 'unsafe-inline';
font-src 'self' data:;
img-src 'self' data:;
"
/>
</Helmet>
<Button variant="contained" color="primary">
Hello, World!
</Button>
</>
);
}
export default Main;
Output:
This sets the 'Content-Security-Policy' header to allow resources to be loaded only from the same origin ('self'), and also allows inline scripts and styles.
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Top comments (3)
Great content!
Nice post
Hi. Asking because I don't know :)
When using Material-UI (also known as MUI) with React, it's important to set up a Content Security Policy (CSP) to ensure that your app is secure against cross-site scripting (XSS) attacks.Why? What does a
user interface libraryhave to do with security? And why more so than any other library?