holoviz/lumen

Spinner should stop when an error is encountered

Closed this issue · 3 comments

I love the new automatic loading indicator on startup, but when there is an error in the .yml, it just spins away like:

image

Here I edited the penguins URL to make it point to a non-existent file, and got no feedback that there was an error until I checked my command-line terminal. A spinner is useful to the extent that it accurately conveys the state of the app, which in this case is an error; can it switch to an error indicator (a red exclamation point?) if the app raises an exception? Or at least stop spinning?

Plus that spinner is pretty dang big!

The spinner is sized relative to its container, but maybe we'll set a max-width in Panel.

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