Remove the footer comment from W3 Total Cache on your child site.
Snippet Type
Execute on Child Sites
Snippet
add_filter('w3tc_can_print_comment','__return_false',10,1);
Remove the footer comment from W3 Total Cache on your child site.
Snippet Type
Execute on Child Sites
Snippet
add_filter('w3tc_can_print_comment','__return_false',10,1);