A nonexistent object was used in an `Output` of a Dash callback - correct use of multi-Page App Validation

Hi @AlexM

Thanks for sharing your work-around!

Here’s another options you might find helpful. @Emil recently created a utility in dash-extensions that controls the visibility of the page based on the URL If you give it a try, it would be great if you could give feedback in this thread. I think this could be a nice addition to Dash as this is a pretty common use-case in multi-page apps.