---
title: One-click Cloudflare Access for Workers
description: You can now enable Cloudflare Access for your workers.dev and preview URLs in a single click.
image: https://developers.cloudflare.com/changelog-preview.png
---

> Documentation Index  
> Fetch the complete documentation index at: https://developers.cloudflare.com/changelog/llms.txt  
> Use this file to discover all available pages before exploring further. 

[Skip to content](#%5Ftop) 

# Changelog

New updates and improvements at Cloudflare.

[ Subscribe to RSS ](https://developers.cloudflare.com/changelog/rss/index.xml) [ View RSS feeds ](https://developers.cloudflare.com/fundamentals/new-features/available-rss-feeds/) 

![hero image](https://developers.cloudflare.com/_astro/hero.CVYJHPAd_26AMqX.svg) 

[ ← Back to all posts ](https://developers.cloudflare.com/changelog/) 

## One-click Cloudflare Access for Workers

Oct 03, 2025 

[ Workers ](https://developers.cloudflare.com/workers/) 

You can now enable [Cloudflare Access](https://developers.cloudflare.com/cloudflare-one/access-controls/policies/) for your [workers.dev](https://developers.cloudflare.com/workers/configuration/routing/workers-dev/) and [Preview URLs](https://developers.cloudflare.com/workers/configuration/previews/) in a single click.

![Screenshot of the Enable/Disable Cloudflare Access button on the workers.dev route settings page](https://developers.cloudflare.com/_astro/workers-access.DGGYThLx_1YsjKO.webp) 

Access allows you to limit access to your Workers to specific users or groups. You can limit access to yourself, your teammates, your organization, or anyone else you specify in your [Access policy](https://developers.cloudflare.com/cloudflare-one/access-controls/policies/).

To enable Cloudflare Access:

1. In the Cloudflare dashboard, go to the **Workers & Pages** page.  
[ Go to **Workers & Pages** ](https://dash.cloudflare.com/?to=/:account/workers-and-pages)
2. In **Overview**, select your Worker.
3. Go to **Settings** \> **Domains & Routes**.
4. For `workers.dev` or Preview URLs, click **Enable Cloudflare Access**.
5. Optionally, to configure the Access application, click **Manage Cloudflare Access**. There, you can change the email addresses you want to authorize. View [Access policies](https://developers.cloudflare.com/cloudflare-one/access-controls/policies/#selectors) to learn about configuring alternate rules.

To fully secure your application, it is important that you validate the JWT that Cloudflare Access adds to the `Cf-Access-Jwt-Assertion` header on the incoming request.

The following code will validate the JWT using the [jose NPM package ↗](https://www.npmjs.com/package/jose):

**JavaScript**

```javascript
import { jwtVerify, createRemoteJWKSet } from "jose";


export default {
  async fetch(request, env, ctx) {
    // Verify the POLICY_AUD environment variable is set
    if (!env.POLICY_AUD) {
      return new Response("Missing required audience", {
        status: 403,
        headers: { "Content-Type": "text/plain" },
      });
    }


    // Get the JWT from the request headers
    const token = request.headers.get("cf-access-jwt-assertion");


    // Check if token exists
    if (!token) {
      return new Response("Missing required CF Access JWT", {
        status: 403,
        headers: { "Content-Type": "text/plain" },
      });
    }


    try {
      // Create JWKS from your team domain
      const JWKS = createRemoteJWKSet(
        new URL(`${env.TEAM_DOMAIN}/cdn-cgi/access/certs`),
      );


      // Verify the JWT
      const { payload } = await jwtVerify(token, JWKS, {
        issuer: env.TEAM_DOMAIN,
        audience: env.POLICY_AUD,
      });


      // Token is valid, proceed with your application logic
      return new Response(`Hello ${payload.email || "authenticated user"}!`, {
        headers: { "Content-Type": "text/plain" },
      });
    } catch (error) {
      // Token verification failed
      return new Response(`Invalid token: ${error.message}`, {
        status: 403,
        headers: { "Content-Type": "text/plain" },
      });
    }
  },
};
```

#### Required environment variables

Add these [environment variables](https://developers.cloudflare.com/workers/configuration/environment-variables/) to your Worker:

* `POLICY_AUD`: Your application's AUD tag
* `TEAM_DOMAIN`: `https://<your-team-name>.cloudflareaccess.com`

Both of these appear in the modal that appears when you enable Cloudflare Access.

You can set these variables by adding them to your Worker's [Wrangler configuration file](https://developers.cloudflare.com/workers/wrangler/configuration/), or via the Cloudflare dashboard under **Workers & Pages** \> **your-worker** \> **Settings** \> **Environment Variables**.

```json
{"@context":"https://schema.org","@type":"BlogPosting","@id":"https://developers.cloudflare.com/changelog/post/2025-10-03-one-click-access-for-workers/#page","headline":"One-click Cloudflare Access for Workers · Changelog","description":"You can now enable Cloudflare Access for your workers.dev and preview URLs in a single click.","url":"https://developers.cloudflare.com/changelog/post/2025-10-03-one-click-access-for-workers/","inLanguage":"en","image":"https://developers.cloudflare.com/changelog-preview.png","dateModified":"2025-10-03","datePublished":"2025-10-03","publisher":{"@type":"Organization","name":"Cloudflare","url":"https://www.cloudflare.com/"},"isPartOf":{"@type":"WebSite","@id":"https://developers.cloudflare.com/#website","name":"Cloudflare Docs","url":"https://developers.cloudflare.com/"}}
```