Bad Request
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.
Apache/2.4.10 (Raspbian) Server at 192.168.178.70 Port 443

<VirtualHost *:443>
    SSLEngine on
    ServerName 192.168.178.70
    SSLCertificateFile /etc/apache2/ssl/apache.crt
    SSLCertificateKeyFile /etc/apache2/ssl/apache.key

    # Path to the website
    DocumentRoot /var/www/html
</VirtualHost>

Listen 80

<IfModule ssl_module>
    Listen 443
</IfModule>
<IfModule mod_gnutls.c>
    Listen 443
</IfModule>

sudo a2enmod ssl