How to remove query strings from static resources https://www.netmagik.com/how-to-remove-query-strings-from-static-resources/

remove-query-strings.php

/* Remove Query Strings from static resources */
/* Add to functions.php */
function _remove_script_version( $src ){
     $parts = explode( '?ver', $src );
        return $parts[0];
}
add_filter( 'script_loader_src', '_remove_script_version', 15, 1 );
add_filter( 'style_loader_src', '_remove_script_version', 15, 1 );