Aaaand... because I couldn't help myself. A simple little example using shinyjs that seems to work for my not-very-thorough testing 
The two important bits:
- In the UI:
shinyjs::useShinyjs(),
- In the Server (10 seconds for testing):
shinyjs::runjs(
"function reload_page() {
window.location.reload();
setTimeout(reload_page, 10000);
}
setTimeout(reload_page, 10000);
")
You definitely don't need the shinyjs package to make this work, but it does make things a little easier Throwing the JavaScript into your HTML as a script tag, etc. would work just as well.