Serves webp images instead of jpg or png if supported by browser

nginx_webp.conf

http {
  ##
  # WebP conf
  ##
  
  map $http_accept $webp_suffix {
    default   "";
    "~*webp"  ".webp";
  }
 
  ##
  # Minimal server
  ##
  
  server {
  
    [...]
 
    location ~* ^/images/.+\.(png|jpe?g)$ {
      root /home/www-data;
      add_header Vary Accept;
      try_files $uri$webp_suffix $uri =404;
    }
  }
}