To reproduce:

1. Log into NDS Labs UI
2. Click "Manage Files"
   • You should see the file manager appear in your applications list
   • FileManager should automatically begin its startup process
   • A new tab will be opened to the FileManager endpoint once it is available
3. Close the new tab that was opened
   • You should now be back at the NDS Labs UI
4. Open the Developer Console (Command + Option + I in Chrome on OSX)
5. Expand the "File Manager" accordion header and click "Shutdown" under the service list
   • You should see the File Manager begin to shutdown
6. While the application is shutting down, click "Manage Files" again
   • An error appears in the Developer Console with a some stack traces:

   • GET http://www.mldev.ndslabs.org/api/start/s25hmj 409 (Conflict)