.htaccess.webp-convert

<IfModule mod_rewrite.c>
RewriteEngine On

#Action markdown /markdown/handler.php
#AddHandler markdown .md

# ---- Handsdown ----

# Pass all requests not referring directly to files in the filesystem to the engine
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ handsdown-engine.php?page=$1 [NC,L,QSA]

# Pass directories to the engine as well
# RewriteCond %{REQUEST_FILENAME} -d
# RewriteRule ^(.*)$ handsdown-engine.php?page=index [NC,L,QSA]
</IfModule>



<IfModule mod_rewrite.c>
  
  # ---- webp-on-demand ----

  # IN ORDER FOR THIS TO WORK, PLEASE COPY webp-convert files INTO /lib/webp-convert
  # YOU CAN GET IT HERE: https://github.com/rosell-dk/webp-convert
  # THEN RENAME .htaccess to .htaccess.old
  # AND THEN RENAME THIS FILE TO .htaccess

  RewriteEngine On
  RewriteBase /

  RewriteCond %{HTTP_ACCEPT} image/webp
  RewriteCond %{QUERY_STRING} (^reconvert.*)|(^debug.*) [OR]
  RewriteCond %{DOCUMENT_ROOT}/images/webp-cache/$1.$2.webp !-f
  RewriteCond %{QUERY_STRING} (.*)
  RewriteRule ^(.*)\.(jpe?g|png)$ lib/webp-convert/webp-convert.php?source=$1.$2&quality=80&destination-root=images/webp-cache&preferred-converters=imagick,cwebp&serve-image=yes&%1 [NC,T=image/webp,E=accept:1]

  RewriteCond %{HTTP_ACCEPT} image/webp
  RewriteCond %{QUERY_STRING} !((^reconvert.*)|(^debug.*))
  RewriteCond %{DOCUMENT_ROOT}/images/webp-cache/$1.$2.webp -f
  RewriteRule ^(.*)\.(jpe?g|png)$ /images/webp-cache/$1.$2.webp [NC,T=image/webp,E=accept:1,QSD]
</IfModule>

# Making CDN caching possible.
# The effect is that the CDN will cache both the webp image and the jpeg/png image
# and return the proper image to the proper clients (for this to work, make sure to
# set up CDN to forward the "Accept" header)
<IfModule mod_headers.c>
    Header append Vary Accept env=REDIRECT_accept
</IfModule>

AddType image/webp .webp