Header Vary: Accept Encoding

Developers Workers
1

Hi,

I would like to set vary header for certain filetype. How to do that with worker?

In Apache we do it like that. How to do that using worker?

<FilesMatch "\.(js|css|xml|gz|html|php|ttf|txt|woff|otf|ttf|eot|json)$">
	Header always append Vary "Accept-Encoding"
</FilesMatch>
1 Like
2

Workers always run in front of the Cloudflare cache, so adding a vary header won’t do anything. Could you explain more about what you’re trying to achieve or your current worker code (if any)?

3

Cloudflare will automatically compress content to end users when the client signals support for gzip (or Brotli) compression. Details available here.

There is an article by @junade that indicates adding the Accept-Encoding header will be ignored and removed, but that may not apply in a Worker.

Doing a quick test on a worker of my own, I see the vary response header when the client indicates gzip capability, and the originless response is compressed as expected.