Why does the browser first swear at the certificate and after the transition not?

Question

Nginx

I use IE to make it clear what I'm talking about, I already have redirects constantly working out in other browsers.

So, if we specify the site address without www, then we see such a picture, but if we say go anyway, then the redirect to the site with www is triggered and everything works fine.
if you look at the certificate, it extends to *.site.ru
The server uses docker which has nginx + php-fpm

Answer 1

Absolutely normal behavior - *.site.ru is not equal to site.ru