W3 Total Cache Browser Cache .htaccess Rules for Favicon.ico file
Looking through the sites root .htaccess file (where the W3 Total Cache Plugin rules are saved to) there’s relevant browser cache rules for the favicon.ico file.
AddType image/x-icon .ico
ExpiresByType image/x-icon A2419200
This should work, but according to GTMetrix it wasn’t working.
Continue Reading How to Fix a Specify a Cache Validator Warning in WordPress
