Bug: file upload not working in rare cases #2
Description
In rare cases, file upload through the web interface does not work. User selects file & nothing appears to happen in the interface.
This seems to happen with specific Excel files. It could be that these may contain an illegal character, or there is some issue with the encoding.
Desired behaviour is that all files can be handled, but if that is not possible, show some kind of feedback to the user.
Need to dig deeper into the file upload widget provided by Shiny to fix this issue (possibly: file as bug report for the Shiny R package)