Shiny downloadHandler doesn't save PNG files

Question

I\'ve got my download function to do everything right, when the save as screen comes up, the file name I specified appears. When I click on save the window closes, but no file g

Answer 1

You want

contentType = 'image/png'

not

contentType = 'application/png'

Although I don't think that's the problem. Are you running it within RStudio's preview pane or in an external browser? I had the same problem with downloading when using the preview pane but it worked fine on my browser.