R help - Apr 2019 - Snapshot of a shiny app

Hi,

I have a Shiny app with address like http://xx.xx.xx.xx:1080/remotepp/

When I try to get a PDF snapshot of this app using webshot() function from
webshot package, I see a blank PDF file saved.

I also tried with appshot() function as below, however getting error:

appshot(" http://xx.xx.xx.xx/remotepp  ", "a.pdf", port =
1080)
Error in process_initialize(self, private, command, args, stdout, stderr,
:
  Command not found

Any pointer on how to take snapshot properly would be highly appreciated.

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