Clicking on Convert tab give 404 error

[dchassin]

Start app.py as instructed and click on the Convert tab. The result is 404 Not Found.

 * Serving Flask app "app" (lazy loading)
 * Environment: production
   WARNING: This is a development server. Do not use it in a production deployment.
   Use a production WSGI server instead.
 * Debug mode: on
 * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)
 * Restarting with stat
 * Debugger is active!
 * Debugger PIN: 116-889-075
127.0.0.1 - - [05/Feb/2020 06:06:18] "GET / HTTP/1.1" 200 -
127.0.0.1 - - [05/Feb/2020 06:06:21] "GET /upload HTTP/1.1" 404 -

[jongoncalves]

Closing this out; issue is known and fixed on the to_from_field branch