How to rewrite remote url if browser support webp?

I’m trying to make a rewrite rule that detects if browser support webp. I saw this topic Automatically serve webp if browser supports it and tried this conf as well:

rewrite {
  if {>Accept} has image/webp
  r ^(.+)\.(jpg|jpeg|png)$
  to {1}.webp {path} {path}/
header / Vary Accept

But seem it doesn’t work as I exptected. There are no any changes on my page.

I serve static files on aws s3, so on my page I have urls like:

I’d like to detect if client’s browser support webp and if so rewrite url to:

Could you please tell me is it possible and give me example of how to do it. Thank you

Hi @1114, welcome to the Caddy community!

What do you get when you try the requests another forum goer was using to troubleshoot their rewrites?

This topic was automatically closed 90 days after the last reply. New replies are no longer allowed.