How to really share a Jupyter notebook uploaded to Google Colab?

Question

I uploaded a Jupyter .ipynb notebook to Google CoLab using File->Upload Notebook. Renamed it, made some edits, and saved it. Great. However, when I do "Share"->"Anyone with a link can view", then copy the link and open it in another (or private) browser window, I
(1) am required to log in to a Google account, and (2) get this pop-up: "Notebook loading error. There was an error loading this notebook. Ensure that the file is accessible and try again."
and buried in the displayed error is: "403 This file cannot be downloaded by the authenticated user."

This confuses me about the behaviour of Colab notebooks vs. other Drive files. Ordinarily, the "anyone with a link can view" on a Drive file does not require the viewing user to be logged in to a Google account. That's confusion #1. Confusion #2: why is Colab trying to "download" anything at all, as indicated in the 403? I assumed the file would be viewable within Colaboratory within the user's browser, just as it is for the notebook owner.

I would like to invite (non-coding) colleagues to view my Colab notebook, with or without a Google account, and without any particular coding or Google savvy. Any ideas on how to do this?

Answer 1

Possibly this is useful until a better solution is available...

This happens to me when "Disable options to download, print, and copy for commenters and viewers" is selected in advanced options...

I was able to share the notebook by deselecting this option...