If you are running a CG application as a server as shown below in web browser mode (-b yes), without starting a local client in a web browser (-l no), without exiting the server when a client exits (-x no), connecting to the CG server at port 9009 (-o 9009), and acting as a launcher to run an instance of the app for each client (up to a limit) that requests one (--launcher yes), then pressing the Run the App button will tell the (invisible) iframe element to display the app in this web page.
my-cg-app.exe -b yes -l no -x no -o 9009 --launcher yesUsing -x no allows the server instance to keep running while various users connect to it and disconnect, though it also means that you will need to use some operating system facility to kill the server eventually.