Hi,
When using a noVNC v1.0.0 client with "remote resize" enabled, the user's desktop can be resized to fit the browser window if the server supports ExtendedDesktopSize encoding. For me, the resizing does not work for x11vnc v0.9.16, but does if I switch to Xvnc.

Does x11vnc support ExtendedDesktopSize? If it does, I could use some help figuring out why the client & server are not in agreement on their protocol extensions.
Also, see this issue.

Thanks.