maneshtm on "[Plugin: W3 Total Cache] Apply caching to files outside of wordpress"

We have a wordpress website with W3TC as caching plugin. We had it set up very basic and conservative. we have many php pages outside of wordpress folder with wordpress header
{(define('WP_USE_THEMES', false),
require('/home/tvnow/public_html/wp-blog-header.php')}
But W3TC not caching these pages. Is there any special configuration to apply caching to these files?. How can i achieve caching of files outside wordpress folder?

https://wordpress.org/plugins/w3-total-cache/