thanks so much for your help. I am not sure how to set up the toy example.
I tried to check your idea of the app having an issue between None and “None”.
I changed “None” to the “Something else” string
Until I do not filter anything, until I leave “Something else” in my widget, once I click on “Submit” the app works and returns my beautiful chart.
The console also stays clear except for this warning message. But in my app you can choose to upload a file or to play with a test file. I am doing the latter so it is ok.
The moment I use the widget to select the column I want to filter on, for instance Country
I get an error in the Console
At that point the app freeze and nothing happens if I click on Submit. Also if try to filter on something, for example here “China”.
On the console nothing more happens, and the message stays the same.
I really hope this helps. Let me know if there is anything I can do to help you solve this