[FreeNX-kNX] View-only, web-based NX viewer/client for Linux screen-sharing, presentations?

[Yang Zhang]

I currently share my screen for presentations using VNC, since it's
easy to share with anyone who has little more than a web browser with
noVNC.

Is there a similar viewer (HTML5, Flash, or - as a last resort - Java)
that uses the faster NX protocol? The only NX clients I can find today
are "full" clients, which require a download/install and have no
view-only mode.

Also posted here in case you want some StackExchange cred:

http://superuser.com/questions/497425/view-only-web-based-nx-viewer-client-for-slick-linux-screen-sharing-presentati

Thanks!