Disappearing image files

I have a shinydashboard app in which I display an image. Everything appears to work normally but the image file is no longer in the WWW sub directory immediately after I start the app and, obviously, a second launch of the app fails to display it. A simplified version is below. My shiny is down level 1.2.0 (staying with what a customer site has) and shinydashboard is version 0.7.1. My OS is Linux Mint 18.3

If I use the img() function, this does not seem to happen.

Has anyone seen such a thing before? I guess I hope I am doing something silly and just can't see it at the moment.

ui <- dashboardPage(title = "Test",
                      title= "Test"
                         menuItem("Image", tabName = "Img")
                        tabItem(tabName = "Img",
server <- function(input, output) {
  output$image1 <- renderImage({ 
    list(src = "WWW/Profile2.JPG",
         contentType = "image/jpg",
         width = "80%",
         height = "auto"

shinyApp(ui = ui, server = server)

Try adding deleteFile = FALSE as parameter for renderImage

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Doh! How did I not see that? Once again I learn that when something crazy seems to be happening, I should take a nap. Thanks!

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