Password protect a page that is shared to the internet

Currently, the internet sharing scheme is a typical one, relying on "security by obscurity" by setting the URL as a UUID. These days, many systems offer this functionality.

Problem is, search engines don't always honor "no index" metadata (if even Outline is setting that for so-shared pages), and people can share the URIs of such pages via various means. When the link goes into chat or email, voilà, the link is now in a backup somewhere.

It would be good if Outline could allow users to set an arbitrary password to a shared page. When a person clicks on such a URL, Outline would prompt for a password, a la http-access.

Of course, guest access is one way to handle this, but doing it with a password means, you can allow a bunch of people to see it for a limited period, and easily block access simply by changing the password.