Proxy redirect is not working properly on apache2?

Question

I have a web-app running on a proxy using apache2 on my default domain (domain1). I now want a second domain (domain2) to access the subfolder on the web-app, but I can't manage to get it working. domain2 always shows the content domain1 displays, no matter what I try..

Here are my configs for both domains:

<VirtualHost domain1.com:*>
 ProxyRequests Off
 ProxyPreserveHost On
 ProxyVia Full
 <Proxy *>
   Require all granted
 </Proxy>

 ProxyPass / http://localhost:3000/
 RewriteEngine on
 RewriteCond %{HTTP:Upgrade} websocket [NC]
 RewriteCond %{HTTP:Connection} upgrade [NC]
 RewriteRule ^/?(.*) "ws://localhost:3000/$1" [P,L]

 #SSL
 Include      /etc/letsencrypt/options-ssl-apache.conf

 ServerName domain1.com
 ServerAlias www.domain1.com
 SSLCertificateFile /etc/letsencrypt/live/www.domain1.com/fullchain.pem
 SSLCertificateKeyFile /etc/letsencrypt/live/www.domain1.com/privkey.pem
</VirtualHost>

---

<VirtualHost domain2.com:80>
 Redirect permanent / https://domain2.com/
 ServerName domain2.com
</VirtualHost>

<VirtualHost domain2.com:433>
 ProxyRequests Off
 ProxyPreserveHost On
 ProxyVia Full
 <Proxy *>
   Require all granted
 </Proxy>

 ProxyPass / http://localhost:3000/subfolder/
 ProxyPassReverse / http://localhost:3000/subfolder/
 RewriteEngine On

 #SSL
 Include      /etc/letsencrypt/options-ssl-apache.conf

 ServerName domain2.com
 ServerAlias www.domain2.com
 SSLCertificateFile /etc/letsencrypt/live/www.domain1.com/fullchain.pem
 SSLCertificateKeyFile /etc/letsencrypt/live/www.domain1.com/privkey.pem
</VirtualHost>