My app uses the logic found here: Shiny - Chat room, where the content of the chat box persists, for a while at least.
Current plan: have a button (hidden in maintenance panel, or something) with (not yet tested):
if (file.exists("data.Rds")) {
file.remove("data.Rds")
}
My workaround is to redeploy the app with an empty RDS file. Seems like overkill.