I created a temporary fix for this problem with https connections.
Please review the code beneath.
Changed code is for version 1.0.7:
// Set Up
function lcb_base_url() {
$LCB_WP_PLUGIN_URL = WP_PLUGIN_URL . '';;
if (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] != 'off') {
$LCB_WP_PLUGIN_URL = str_replace('http:', 'https:', $LCB_WP_PLUGIN_URL);
}
return $LCB_WP_PLUGIN_URL;
}
(...)
define('LEAD_CALL_BUTTON_HOOK', lcb_base_url() . '/' . plugin_basename( dirname(__FILE__) ) . '/' );
(...)
wp_enqueue_style('lcb-css-movement', lcb_base_url() . '/' . plugin_basename( dirname(__FILE__) ) . '/'.'css/movement.css');
wp_enqueue_style('lcb-css-main', lcb_base_url() . '/' . plugin_basename( dirname(__FILE__) ) . '/'.'css/plugin-main.css');