webp-rewrite.htm

<IfModule mod_setenvif.c>
    # Vary: Accept for all the requests to jpeg and png
    SetEnvIf Request_URI "\.(jpe?g|png)$" REQUEST_image
</IfModule>
<ifModule mod_rewrite.c>
    RewriteEngine On

    # If the Browser supports WebP images, and the .webp file exists, use it.
    RewriteCond %{HTTP_ACCEPT} image/webp
    RewriteCond %{REQUEST_URI} ^/?storage/.*\.(jpe?g|png)
    RewriteCond %{REQUEST_FILENAME}.webp -f
    RewriteRule ^/?(.*)$ $1.webp [NC,T=image/webp,END]

    {% if auto_convert %}
# If the Browser supports WebP images, and the .webp file does not exist, generate it.
    RewriteCond %{HTTP_ACCEPT} image/webp
    RewriteCond %{REQUEST_URI} ^/?storage/.*\.(jpe?g|png)
    RewriteCond %{REQUEST_FILENAME}\.webp !-f
    RewriteRule ^/?(.*)$ plugins/offline/responsiveimages/webp.php?path=$1 [NC,END]
    {% endif %}
</ifModule>
<IfModule mod_headers.c>
    Header append Vary Accept env=REQUEST_image
</IfModule>
<IfModule mod_mime.c>
    AddType image/webp .webp
</IfModule>