LocalRedirect not working on nginx?

Question

PHP

Hello.
The site on Bitrix moved from apache2 to nginx + php5-fpm, + at the same time fastened an ssl certificate and set up a redirect from http to https in nginx.
After the move, LocalRedirect stopped working, it was googled to add to dbconn.php -> $_SERVER["SERVER_PORT"] = "443";
however, this did not solve the problem.
Maybe someone faced similar?

Answer 1

Rewrote all LocalRedirect in the code to header . Works!
Why LocalRedirect does not work is not clear.

Answer 2

It is not clear what might not work there. Regular spitting out the Location header