ASP.NET Core hosting in Apache using SSL and Cookie Authentication redirect

I've made an asp.net core application and I'm trying to host it in Apache with reverse proxy. The app uses cookie authentication:

app.UseCookieAuthentication(new CookieAuthenticationOptions()
{
  AuthenticationScheme = "CookieAuthentication",
  LoginPath = new PathString("/Account/Login/"),
  AccessDeniedPath = new PathString("/Account/Forbidden/"),
  AutomaticAuthenticate = true,
  AutomaticChallenge = true
});

In httpd.conf I would like to use one SSL only host with custom port which serves content from Kestrel.

Listen 34567

<VirtualHost *:34567>
  ProxyPreserveHost On
  ProxyPass / http://127.0.0.1:5000/
  ProxyPassReverse / http://127.0.0.1:5000/
  SSLEngine on
  SSLProtocol all -SSLv3
  SSLCipherSuite ALL:!ADH:!EXPORT:!SSLv2:!RC4+RSA:+HIGH:+MEDIUM:!LOW:!RC4
  SSLCertificateFile certs/server.crt
  SSLCertificateKeyFile certs/server.key
</VirtualHost>

When I use url https://testserver1:34567 it redirects to http://testserver1:34567/Account/Login/?ReturnUrl=%2F which of course gives a Bad Request. If I correct the url by changing it to https, everything works fine afterwards.

How can I make it so that it always redirects to a https url?