I am not sure whether this is the right place to post this, but maybe someone can help me.
I am using Jupyter notebooks for teaching Julia, posting notebooks on Github where my students can open and download them. For viewing the notebooks on smartphones, I always provide them a nbviewer.jupyter.org link as well. It seems however that https://nbviewer.jupyter.org/ is not working:
Error 503 No healthy backends
Does anyone know what’s happening?
EDIT (16.10.2019): As soon as I posted it, the problem has been solved. If you have any ideas for alternative services, let me know. Viewing the notebooks in Github also doesn’t work most of the time. So that’s not a solution for me.