HTTP headers (for cache-control) - apache

Is this statement correct?
css and js should use private for proxy caching
https://developers.google.com/speed/docs/best-practices/caching#LeverageProxyCaching
I'm intending to use this directly for my hosting and alt. through a CDN, and wish to have the best settings for speed optimization, TTFB.
<IfModule mod_headers.c>
Header set Connection keep-alive
<filesmatch "\.(ico|flv|gif|swf|eot|woff|otf|ttf|svg)$">
Header set Cache-Control "max-age=2592000, public"
</filesmatch>
<filesmatch "\.(jpg|jpeg|png)$">
Header set Cache-Control "max-age=1209600, public"
</filesmatch>
# css and js should use private for proxy caching https://developers.google.com/speed/docs/best-practices/caching#LeverageProxyCaching
<filesmatch "\.(css)$">
Header set Cache-Control "max-age=31536000, private"
</filesmatch>
<filesmatch "\.(js)$">
Header set Cache-Control "max-age=1209600, private"
</filesmatch>
<filesMatch "\.(x?html?|php)$">
Header set Cache-Control "max-age=600, private, must-revalidate"
</filesMatch>

Related

Why is the browser not caching my static content?

I've been trying to get this to work for hours now. The browser is downloading the file every time even though the Expires header is set to a week from now. Also tried on Firefox, same result. How can I specify that this resource is still valid and there's no need to download it every time?
Here is the Chrome network log
Here is the Chrome headers for the javascript file.
Here is my .htaccess code. I have confirmed that mod_expire is enabled.
ExpiresActive On
<FilesMatch "\.(css|js|gif|png|jpg|jpeg)$">
ExpiresDefault "access plus 1 week"
Header append Cache-Control "public"
</FilesMatch>
Change httpd.conf
<IfModule mod_expires.c>
<FilesMatch "\.(jpe?g|png|gif|js|css)$">
ExpiresActive On
ExpiresDefault "access plus 1 year"
</FilesMatch>
</IfModule>
Set cache to 2 years
Header set Cache-Control "max-age=63072000, public"

.htaccess <filesMatch> only if host name matches?

I just setted up a local environament with same code that I had in production environament into a vagrant virtual machine with ubuntu32,
The thing is that I got Internal Server Error with all my rules in the .htaccess file
So I started removing separated blocks of code and this was the trouble:
# 1 weeks
<FilesMatch "\.(js|css)$">
Header set Cache-Control "max-age=604800, public"
</FilesMatch>
# 1 weeks
<FilesMatch "\.(ico|pdf|flv|jpg|jpeg|png|gif|swf)$">
Header set Cache-Control "max-age=604800, public"
</FilesMatch>
# 1 MIN
<FilesMatch "\.(html|htm|php)$">
Header set Cache-Control "max-age=60, private, proxy-revalidate"
</FilesMatch>
The thing is that I would like to use the exact same code for all environaments, is there a way I can only include that block of <filesMatch> only if not in localhost?
I found this answer but it just refers to a page, not the host name.
You can probably do:
SetEnvIf Host ^ NON_LOCAL
SetEnvIf Host localhost !NON_LOCAL
<FilesMatch "\.(js|css)$">
Header set Cache-Control "max-age=604800, public" env=NON_LOCAL
</FilesMatch>
# 1 weeks
<FilesMatch "\.(ico|pdf|flv|jpg|jpeg|png|gif|swf)$">
Header set Cache-Control "max-age=604800, public" env=NON_LOCAL
</FilesMatch>
# 1 MIN
<FilesMatch "\.(html|htm|php)$">
Header set Cache-Control "max-age=60, private, proxy-revalidate" env=NON_LOCAL
</FilesMatch>

Set a header by Content-Type

I have used this before;
<IfModule mod_expires.c>
ExpiresActive On
ExpiresByType image/gif "now plus 2 weeks"
// Lots omitted here
</IfModule>
And this;
<IfModule mod_headers.c>
<filesMatch "\\.(ico|pdf|flv|jpg|jpeg|png|gif|swf|JPG)$">
Header set Cache-Control "max-age=1209600"
</filesMatch>
// Lots omitted here
</IfModule>
I can set the expires on by content-type and I can set any header I wish by file extension.
But neither of these seem to let you set any header you want by content-type.
I want to set the cache-control header based on the content-type of the response - note that this is not the same as the file extension. I have "friendly URLs" so there is no file extension to be captured by filesMatch so there is no file extension but the content-type is text/html.
How can I set the cache-control header for specific content-types?
In 2.4, you can append expr= to the Header directive instead of env=. For example:
Header set Cache-Control "max-age=3600" "expr=%{CONTENT_TYPE} == 'text/html'"
In the default (non-early) mode, mod_headers runs as an output filter – so the content type is already set and available by the expression parser.
http://httpd.apache.org/docs/2.4/expr.html
I guess you will need to append or set the Cache-Control header first. Please try the snippet below and do not forget the "no-transform" param.
<IfModule mod_expires.c>
ExpiresActive On
ExpiresByType image/gif "now plus 2 weeks"
// Lots omitted here
//This is the magic
<IfModule mod_headers.c>
Header append Cache-Control "public, no-transform"
</IfModule>
</IfModule>
If you want to make the cache content-type you can enter it in this way:
<IfModule mod_expires.c>
ExpiresActive on
ExpiresByType text/html "access plus 15 days"
</IfModule>

.htaccess cache-control doesn't cache my files (js|png|css etc.)

As my title says, I am trying to cache-control the content on my website but it seems that my content isn't being cached.
This is my code in my .htaccess file:
Header unset Pragma
FileETag None
Header unset ETag
# cache images/pdf docs for 10 days
<FilesMatch "\.(ico|pdf|jpg|jpeg|png|gif|js)$">
Header set Cache-Control "max-age=864000, public, must-revalidate"
Header unset Last-Modified
</FilesMatch>
# cache html/htm/xml/txt diles for 2 hours
<FilesMatch "\.(html|htm|xml|txt|xsl)$">
Header set Cache-Control "max-age=7200, must-revalidate"
</FilesMatch>
I have tried a lot of tutorials but none of them seems to do the trick.
By the way, other .htaccess codes, like redirecting and stuff, DOES work.
I figured it out, you gotta remove Header unset Last-Modified
Header unset Pragma
FileETag None
Header unset ETag
# cache images/pdf docs for 10 days
<FilesMatch "\.(ico|pdf|jpg|jpeg|png|gif|js)$">
Header set Cache-Control "max-age=864000, public, must-revalidate"
</FilesMatch>
# cache html/htm/xml/txt files for 2 hours
<FilesMatch "\.(html|htm|xml|txt|xsl)$">
Header set Cache-Control "max-age=7200, must-revalidate"
</FilesMatch>

Access-Control-Allow-Origin headers not working

Even though I've added this in my .htaccess file:
Header add Access-Control-Allow-Origin "*"
And this in my apache config: (Inside a section AND outside)
<Files ~ "\.(gif|jpe?g|png|js|json|xml)$">
Header set Access-Control-Allow-Origin "*"
</Files>
It still does not work!
When I get the DIRECTORY it does give me the wanted header, but as soon as I download a specific file the header is nowhere to be found!
How hard can it be?
try
<FilesMatch "\.(gif|jpe?g|png|js|json|xml)$">
<IfModule mod_headers.c>
Header set Access-Control-Allow-Origin "*"
</IfModule>
</FilesMatch>