Add Header Example

Below is the code from middleware.ts showing how to add response headers at the edge:

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import { NextResponse } from 'next/server'
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export default function middleware() {
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  // Store the response so we can modify its headers
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  const response = NextResponse.next()
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  // Set custom header
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  response.headers.set('x-modified-edge', 'true')
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  // Return response
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  return response
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}

Demo

https://edge-functions-add-header.vercel.app

How to Use

You can choose from one of the following two methods to use this repository:

One-Click Deploy

Deploy the example using Vercel:

Clone and Deploy

Execute create-next-app with pnpm to bootstrap the example:

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pnpm create next-app --example https://github.com/vercel/examples/tree/main/edge-middleware/add-header add-header

Next, run Next.js in development mode:

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pnpm dev

Deploy it to the cloud with Vercel (Documentation).