Embedded html frame does not react

If I embed a html frame, and go in preview mode, the embedded frame appears, but I can’t sign in to see the content.
I receive the message “Authorisation in a new tab…” but nothing happens.

Does anyone know how I can sign in?

Environment

  • Operating system: Mac Big Sur
  • Obsidian version: 11.13

Additional information

I am gonna move this to help. hope you provide more details there.