Rserve and plotly

Dear,

I develop a web app where the user can issue a R command and see output in html page. Most of R examples work without any problem.

When I try plotly commands, in development machine (MacBook Pro) everything goes fine and generated chart opens in new tab.

The same command has no effect in server (ubuntu 20.04). Both server and development machine run the same version of R (4.1.2) and Rserve (1.8.10)

Any advice on how to overcome this?

Many thanks in advance

Stavros