Question regarding - request has been blocked; the content must be served over HTTPS?

Question

1C-Bitrix

(index):1 Mixed Content: The page at ' https://www.site.ru/category/test/ ' was loaded over HTTPS, but requested an insecure XMLHttpRequest endpoint ' www.site.ru:443/category/test ''. This request has been blocked; the content must be served over HTTPS.

Writes an error and in no way can you add a product to the basket / favorites in the catalog ...
server url and site url without http are registered

Answer 1

here is the problem with all the manuals for setting up a bunch of nginx + apache for some reason inexplicable to me, they are all 100% incorrect, all of them have http on the https backing and there is a fucking attempt to change the protocol. however, in the harsh realities of life, this naturally does not always work.
well, yes, in addition, there is still a place to be an erroneous redirect not to https://www.site.ru
but to
www.site.ru:443
1. put the certificate on the back
2. find where this redirect occurs and correct the problem.

Answer 2

f12 and see what's in the console in red.
Surely scripts are connected from other resources via http, and maybe from your own server.

Answer 3

You have BitrixVM and nginx works on https, and apache behind it on http.
The easiest way is to send settings and a certificate to Apache, so that Bitrix understands that it actually works on https and generates normal links, but you can also tune the config