---
title: Workers fetch requests now support cf.vary
description: Use the `cf.vary` request option to control cache variants for Workers subrequests that receive origin Vary responses.
image: https://edgetunnel-b2h.pages.dev/changelog-preview.png
---

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## Workers fetch requests now support cf.vary

Jun 28, 2026 

[ Workers ](https://edgetunnel-b2h.pages.dev/workers/) 

Workers `fetch()` requests now support the `cf.vary` request option. Use `cf.vary` to control how Cloudflare caches origin responses with a `Vary` header for a single subrequest.

* [  JavaScript ](#tab-panel-2708)
* [  TypeScript ](#tab-panel-2709)

**src/index.js**

```js
export default {
  async fetch(request) {
    return fetch(request, {
      cf: {
        vary: {
          default: { action: "bypass" },
          headers: {
            accept: {
              action: "normalize",
              media_types: ["text/html", "application/json"],
            },
            "accept-language": {
              action: "normalize",
              languages: ["en", "fr", "de"],
            },
          },
        },
      },
    });
  },
};
```

**src/index.ts**

```ts
export default {
  async fetch(request): Promise<Response> {
    return fetch(request, {
      cf: {
        vary: {
          default: { action: "bypass" },
          headers: {
            accept: {
              action: "normalize",
              media_types: ["text/html", "application/json"],
            },
            "accept-language": {
              action: "normalize",
              languages: ["en", "fr", "de"],
            },
          },
        },
      },
    });
  },
} satisfies ExportedHandler;
```

For more information, refer to [cf.vary](https://edgetunnel-b2h.pages.dev/workers/runtime-apis/request/#the-cfvary-property).

```json
{"@context":"https://schema.org","@type":"BlogPosting","@id":"https://edgetunnel-b2h.pages.dev/changelog/post/2026-06-28-cf-vary-request-option/#page","headline":"Workers fetch requests now support cf.vary · Changelog","description":"Use the cf.vary request option to control cache variants for Workers subrequests that receive origin Vary responses.","url":"https://edgetunnel-b2h.pages.dev/changelog/post/2026-06-28-cf-vary-request-option/","inLanguage":"en","image":"https://edgetunnel-b2h.pages.dev/changelog-preview.png","dateModified":"2026-06-28","datePublished":"2026-06-28","publisher":{"@type":"Organization","name":"Cloudflare","url":"https://www.cloudflare.com/"},"isPartOf":{"@type":"WebSite","@id":"https://edgetunnel-b2h.pages.dev/#website","name":"Cloudflare Docs","url":"https://edgetunnel-b2h.pages.dev/"}}
```