Proxy/reverse proxy with Apache2

[BostonDanPhD]

I have an API Key and my headscale server is behind apache2.

When I put in the credentials (server url and API Key), save it, and then test the server it is still an X.

Also, when I reload the page, I get a "Failed to Fetch" error, and the page states that the API test did not succeed.

My Apache2 configuration is:

   Listen 1234
   <VirtualHost *:1234>

       ServerName <server name>
       ProxyPass / https://<server-name>:8443/ upgrade=any
       ProxyPassReverse /web https://<server-name>:8443/
       ProxyPassReverse / https://<server-name>:8443/ 

       SSLEngine on
       SSLProxyEngine on
       SSLCertificateFile <path to certificate file>
       SSLCertificateKeyFile <path to key file>
       SSLCertificateChainFile <path to chain file>
       SSLProtocol all
       ProxyPreserveHost on

   </VirtualHost>

I do not know cuddy, nor do I use Nginx.

Can anybody help with a proxy/reverse proxy for Apache to get headscale-ui working?

Thank you.