is_HTTPS_protocol working until today.

ishttps.php

<?php
/**
     * checks if is https by protocol used in nginx
     * @return boolean 
     */
    public static function is_HTTPS_protocol()
    {
        
        //we are sure is a https request , we use first the Nginx forwarded PROTO OR apache
        if( (isset($_SERVER['HTTP_X_FORWARDED_PROTO']) AND $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https') 
            OR (isset($_SERVER['REQUEST_SCHEME']) AND $_SERVER['REQUEST_SCHEME'] == 'https')
            )
        {   
            //so we can use it later
            $_SERVER['HTTPS']='on'; 
            return TRUE;
        }

        return FALSE;
    }