[GlowOnDub]

Definitely look like a bug! Could you report it: https://github.com/f3d-app/f3d/issues ?

Regarding the error, you are correct, we have not implemented a log dialog. We plan to improve that in the future but its not a small work: https://github.com/f3d-app/f3d/issues/29

[ComputerGuru]

You don’t need a log dialog for this, just a blocking display of fatal errors that occurred before the canvas loaded.