How to allow site display in frame for certain sites?

Question

PHP

There is a site. It cannot be shown in frames on third-party resources.
BUT! Some need to be allowed. How to be?
Google did not please, or I did something wrong.
php/nginx+apache

Answer 1

Well, you can check where the request to get the site page came from, you can pull out information from $ _SERVER. You can dig into the NGINX config, maybe you can write a rule there.

Answer 2

In nginx config:
Details here .