function get_sr_plugin_url(){
$url = str_replace('index.php', '', plugins_url('index.php', __FILE__ ));
if(strpos($url, 'http') === false){
$site_url = get_site_url();
$url = (substr($site_url, -1) === '/') ? substr($site_url, 0, -1). $url : $site_url. $url;
}

// 强制替换成 HTTPS
$url = str_replace('http://', 'https://', $url);

return str_replace(array(chr(10), chr(13)), '', $url);
}