-fresh install Leap 15.4
-XFCE4 as the desktop
-update while installing
-Go to yast, select open ports, make website, etc.

When trying to connect through a webpage on a different computer on the same
network I get nothing. When looking at the /var/log/messages I get:

"sslv3 alert bad certificate" when encryption is enabled in the novnc website
settings &

"code 400, message Client must support 'binary' or 'base64' protocol"
"code 404, message File not found" when encryption is disabled.

see:
https://forums.opensuse.org/showthread.php/573473-XFCE-VNC-through-Yast-no-connection?p=3147473#post3147473