I have the following snippet:
RewriteCond %{HTTP_REFERER} !^$
RewriteCond %{HTTP_REFERER} !^https?://%{SERVER_NAME}/
RewriteRule \.(js|css|png|jpg) - [R=404,L]
Simple and should work right? It seems to 404 the listed filetypes if I have referrers enabled on browser. Disabling referrers it then allows the files to be served. I have checked the value of %{SERVER_NAME} and it is www.mydomain.com I've tested this in multiple browsers and under HTTP and HTTPS, all have the same result. I used the below rewrite to check %{SERVER_NAME}'s value:
RewriteRule servername value_is_%{SERVER_NAME} [R=301,L]
The URL I get redirected to is then https://www.mydomain.com/value_is_www.mydomain.com
That being said the snippet should allow a referrer with that value or an empty one. But why is it being triggered? It's been driving me nuts for the past 2 hours, but it's 5am so I could be just crazy =o\ Thank you in advance, and I'm off to bed!