Почему может не работать .htaccess?

[緋色のローブプリンス]

Сабж

Options -Indexes

AddType image/svg+xml svg svgz

<IfModule mod_rewrite.c>
	RewriteEngine On
	RewriteBase /img/
	# block .php
	RewriteCond %{THE_REQUEST} \.php[\s?/] [NC]
	RewriteRule \.php$ - [NC,R=404,L]
	# svg images
	RewriteCond %{REQUEST_FILENAME} !-d
    RewriteCond %{REQUEST_FILENAME} ^(.*)\.svg
    RewriteCond %1.php -f
	RewriteRule ^(.*)\.svg $1.php [T=image/svg+xml,L]
</IfModule>