How to use pagedown::chrome_print() in a Shiny app?

This is a demo project to show how to use pagedown::chrome_print() in a Shiny application.

Using pagedown::chrome_print() in Shiny is not straightforward because:

• async = TRUE must be used
• in that case, pagedown::chrome_print() returns a promise
• using promises in Shiny is an advanced topic for many users
  please, read https://rstudio.github.io/promises/articles/shiny.html

This app is deployed at this address https://romain-lesur.shinyapps.io/chrome_print_shiny/.

This demo app is the first step for writing a vignette on this topic (see rstudio/pagedown#114).

If you have any question, please ask on RStudio Community or open an issue in pagedown.