# Upload this file to the root directory of your project, and rename it to .htaccess
# To remove any line - to "comment it out" - place the '#' character at the beginning (as on this line)
# To reinstate any line - to "uncomment" it - remove the '#' character from the beginning
# This file only contains directives that pertain to performance

# pass the default character set
AddType 'text/html; charset=UTF-8' html
AddDefaultCharset utf-8

# Don't show directory listings for URLs which map to a directory.
Options -Indexes

# Follow symbolic links in this directory.
Options +FollowSymLinks

# Prevents problems on localhost:
# Eliminates "Negotiation: discovered file(s) matching request: ... (None could be negotiated)" errors
Options -MultiViews

# Per Page Speed recommendation "Enable gzip compression" (YSlow "Compress components with gzip")
<IfModule mod_deflate.c>
	AddOutputFilterByType DEFLATE text/plain
	AddOutputFilterByType DEFLATE text/html
	AddOutputFilterByType DEFLATE text/xml
	AddOutputFilterByType DEFLATE text/css
	AddOutputFilterByType DEFLATE application/xml
	AddOutputFilterByType DEFLATE application/xhtml+xml
	AddOutputFilterByType DEFLATE application/rss+xml
	AddOutputFilterByType DEFLATE application/javascript
	AddOutputFilterByType DEFLATE application/x-javascript
	AddOutputFilterByType DEFLATE application/x-httpd-php
	AddOutputFilterByType DEFLATE application/x-httpd-fastphp
	AddOutputFilterByType DEFLATE image/svg+xml
</IfModule>

# Requires mod_expires to be enabled.
<IfModule mod_expires.c>
	# Enable expirations.
	ExpiresActive On

	# Per Page Speed recommendation "Leverage browser caching" (YSlow "Add Expires headers")
	# Expire images, CSS, JS in 31536000 seconds (1 year), per GTMetrix recommendations
	ExpiresByType image/x-icon "access plus 31536000 seconds"
	ExpiresByType image/jpeg "access plus 31536000 seconds"
	ExpiresByType image/png "access plus 31536000 seconds"
	ExpiresByType image/gif "access plus 31536000 seconds"
	ExpiresByType application/x-shockwave-flash "access plus 31536000 seconds"
	ExpiresByType text/css "access plus 31536000 seconds"
	ExpiresByType text/javascript "access plus 31536000 seconds"
	ExpiresByType application/x-javascript "access plus 31536000 seconds"
	# Expire HTML in 10 minutes
	ExpiresByType text/html "access plus 600 seconds"
	ExpiresByType application/xhtml+xml "access plus 600 seconds"
	# Cache all other files for 2 weeks after access (A).
	ExpiresDefault A1209600

</IfModule>

# Various rewrite rules.
<IfModule mod_rewrite.c>
	RewriteEngine on

	<IfModule mod_headers.c>

		# Performance (may not be controllable via .htaccess)
		Header set Connection keep-alive

		# Serve gzip compressed CSS files if they exist and the client accepts gzip.
		RewriteCond %{HTTP:Accept-encoding} gzip
		RewriteCond %{REQUEST_FILENAME}\.gz -s
		RewriteRule ^(.*)\.css $1\.css\.gz [QSA]

		# Serve gzip compressed JS files if they exist and the client accepts gzip.
		RewriteCond %{HTTP:Accept-encoding} gzip
		RewriteCond %{REQUEST_FILENAME}\.gz -s
		RewriteRule ^(.*)\.js $1\.js\.gz [QSA]

		# Serve correct content types, and prevent mod_deflate double gzip.
		RewriteRule \.css\.gz$ - [T=text/css,E=no-gzip:1]
		RewriteRule \.js\.gz$ - [T=text/javascript,E=no-gzip:1]

		# Ensure IE receives correct 'X-UA-Compatible' header
		# Can be served in HTML, but it causes validation errors
		<FilesMatch "\.(htm|html|php)$">
			BrowserMatch MSIE ie
			Header set X-UA-Compatible "IE=Edge,chrome=1" env=ie
		</FilesMatch>

		<FilesMatch "(\.js\.gz|\.css\.gz)$">
			# Serve correct encoding type.
			Header set Content-Encoding gzip
			# Header append Content-Encoding gzip
			# Force proxies to cache gzipped & non-gzipped css/js files separately.
			Header append Vary Accept-Encoding
		</FilesMatch>

		# Cache control, per PageSpeed recommendations
		<FilesMatch "\.(ico|jpe?g|png|gif|swf)$">
			Header set Cache-Control "max-age=2692000, public"
		</FilesMatch>
		<FilesMatch "\.(css)$">
			Header set Cache-Control "max-age=2692000, public"
			# Needed for css files to work when stored on a CDN
			# This eases the restriction on the same origin policy
			# Only uncomment if you know what you're doing, as it has security implications
			# Header set Access-Control-Allow-Origin "*"
		</FilesMatch>
		<FilesMatch "\.(js)$">
			Header set Cache-Control "max-age=2692000, private"
		</FilesMatch>
		<FilesMatch "\.(x?html?|php)$">
			Header set Cache-Control "max-age=600, private, must-revalidate"
		</FilesMatch>
		<FilesMatch "\.(js|css|xml|gz)$">
			Header append Vary: Accept-Encoding
		</FilesMatch>
			# Uncomment "FileETag none" if PageSpeed/YSlow recommend it
			# FileETag none
			# Recent research suggests unsetting these attributes is wrong, so they're commented out
			# Header unset ETag
			# Header unset Last-Modified
	</IfModule>
</IfModule>