no plots with dash version >2.12.1

[nicolasstelter]

I just wanna let you know, that there is still some issues with dash versions >2.12.1

Plots dont show up on the website, neither initially empty nor with a callback update.

I will let you know, if I can pin the problem. Do you have an idea where to look?

[delsim]

@nicolasstelter two good places to look in the first instance are the browser developer tools (especially the console and network tabs), and any output from the server process itself.

Is it possible to get a simple example that works with earlier versions of Dash but fails for later versions?