COOKIES are not displayed in the Bitrix template?

Question

1C-Bitrix

Good afternoon, in general:
1. I set a cookie in js
2. I get it in the Bitrix component template via $_COOKIE['NAME']
And it works every time, for example: I
made a simple output var_dump($_COOKIE['NAME']) , and the result is either cached or NULL output (although if you look through the developer panel in Application->cookie, everything is set there as it should.
Most likely it's a dirty thing with component caching, but I can't be sure that such things are cached in Bitrix.
ps I tried to get a cookie via $APPLICATION->get_cookie('NAME') - but it doesn't work
Help, tell me how to be and what to do?

Answer 1

when composite is enabled, cookies are cached like all other superglobal variables.
use

$frame = new \Bitrix\Main\Page\FrameBuffered("my_dynamic"); // или $this->createFrame() в шаблоне
$frame->begin();
  // Содержание динамической области
$frame->beginStub();
  // Заглушка
$frame->end();

to cancel the cache by the
way - here you need to receive without a prefix (2nd parameter).
$APPLICATION->get_cookie('NAME', false)