proxypass with SSL kicks back to http ( untill i get to login page ) apache2

So here is the virtualhost in apache2

<VirtualHost *:100>

     ServerAdmin [email protected]
     DocumentRoot /var/www/

    Redirect "/" "https://192.168.31.10:500/"


</VirtualHost>

<IfModule mod_ssl.c>
<VirtualHost *:500>



    ServerAdmin [email protected]
    ProxyRequests off
    DocumentRoot /var/www
    SSLProxyEngine on
    ProxyPreserveHost On

  SSLEngine on

                SSLCertificateFile      /etc/ssl/certs/apache-selfsigned.crt
                SSLCertificateKeyFile /etc/ssl/private/apache-selfsigned.key


               <FilesMatch "\.(cgi|shtml|phtml|php)$">
                                SSLOptions +StdEnvVars
                </FilesMatch>
                <Directory /usr/lib/cgi-bin>
                                SSLOptions +StdEnvVars
                </Directory>

  #  ServerName odooproxy.com

    ErrorLog ${APACHE_LOG_DIR}/error.log
    CustomLog ${APACHE_LOG_DIR}/access.log combined

    # Possible values include: debug, info, notice, warn, error, crit,
    # alert, emerg.
    LogLevel error

   <Location />
        ProxyPass  http://localhost:8070/
        ProxyPassReverse  http://localhost:8070/
        Order allow,deny
        Allow from all
    </Location>

</VirtualHost>
</IfModule>

The redirection from http port 100 works to port 500 and than the proxy works to port 8070. But than i get the response after it leads me to http://192.168.31.10:500/web

(Your browser sent a request that this server could not understand. Reason: You're speaking plain HTTP to an SSL-enabled server port. Instead use the HTTPS scheme to access this URL, please.)

If i add https before the ip, it will get me to the following page: http://192.168.31.10:500/web/login

With again the same error. After adding again https in front of the address and i make the login it will continue to work as the proxy.

Question is how do i keep after every step that it doesn't switch back to http but remains with https address.

Spend a few hours googling, didnt find a response.

Hope someone can help.