Twice in the last 24 hours, a strange window has suddenly popped up on my screen. It says "Hotspot login" on top, and just this one link. The name of the process is
I don't need a portal helper, the wifi is working fine.
The link "check_network_status.txt" points to http://nmcheck.gnome.org/check_network_status.txt. Now you must be curious to know what happens when you click on it (I would be): it shows a web page with the text "NetworkManager is online".
What is the point of this window? Has anyone experienced this?
I'm on 19.10, Gnome shell version 3.34.1.
Edit: I notice that the window opens every time the computer wakes up from sleep.