webp image is created but not served

[nafribs]

I installed the module and checked the image is being created.

But no webp image is being served.

Below is what was added to htaccess by the module.

~~ mdn_webp_start

RewriteEngine On

Check if browser supports WebP images

RewriteCond %{HTTP_ACCEPT} image/webp

Check if WebP replacement image exists

RewriteCond %{DOCUMENT_ROOT}/$1.webp -f

Serve WebP image instead

RewriteRule (.+).(jpe?g|png|gif)$ $1.webp [T=image/webp,E=REQUEST_image]

Vary: Accept for all the requests to jpeg, png and gif

Header append Vary Accept env=REQUEST_image

AddType image/webp .webp # ~~ mdn_webp_end