Issue .htaccess rule ignored if file exists

[yehudigt]

I'm trying to add webp support to mys ite but it seems that if my not webp file exists the .htaccess rule is being ignored.

System is

• ‪CentOS Linux 7.7.1908 (Core)‬
• Plesk Onyx 17.8.11 Aggiorna #73

Using Nginx + apache / static files served through nginx but not images

This is my .htaccess part involved

RewriteEngine On
RewriteCond %{HTTP_ACCEPT} image/webp
RewriteCond %{DOCUMENT_ROOT}/$1.webp -f
RewriteRule (.+)\.(jpe?g|png)$ $1.webp [T=image/webp]

Both thes files exists:

https://www.magazzinirossi.it/modules/revsliderprestashop/uploads/9930971-1571422750.jpg

https://www.magazzinirossi.it/modules/revsliderprestashop/uploads/9930971-1571422750.webp

But according to the previous rule I should always seee the webp if my browser supports it.

The strange thing is that if I browse a rewrited url like this one:

https://www.magazzinirossi.it/67907-large_default/casco-arai-profile-v-monocolore-nero-opaco.jpg

Which is this physical url
https://www.magazzinirossi.it/img/p/6/7/9/0/7/67907-large_default.jpg

I see the webp image.

If I try the physical file directly it serves me the jpg instead of the webp although there is the rule in .htaccess.

Can anyone explain me how can this happen?

Thanks

 

[Bitpalast]

In the default configuration the .jpg file is served by Nginx, because it is static content. Such requests never reach Apache, for that reason an .htaccess rule that is meant to rewrite an URL ending on .jpg will never be executed.

 

[yehudigt]

Thank you Peter,
but as I said static files are served through nginx but not images: all the extensions related to images have been removed from the textarea, so they should be passed to apache (acccording to Plesk documentation). Screenshot attached. The only way to make it work is to unselect the intelligent processing of static files, which means that although those fiels should be passed to apache they are not. Maybe this is a Plesk bug...