Edge Functions Examples / Set HTTP response header

Set custom HTTP response headers with an Edge Function

Use an Edge Function to add HTTP headers to any HTTP response.

import type { Context } from "@netlify/edge-functions";

export default async (request: Request, context: Context) => {
  const response = await context.next();
  response.headers.set("X-Your-Custom-Header", "A custom value");
  return response;
};

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What are Edge Functions?

Using JavaScript and TypeScript, Netlify Edge Functions give you the power to modify network requests to localize content, serve relevant ads, authenticate visitors, A/B test content, and much more! And this all happens at the Edge — directly from the worldwide location closest to each user.

To use Edge Functions on Netlify, add JavaScript or TypeScript files to an edge-functions directory in your project.

Learn more in the docs.

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