[woadwarrior01]

Port scanning from an external host is fine and dandy, but doing it on localhost from the user's browser crosses the line, IMO.

[crankylinuxuser]

Then why did your "user agent" permit it? Seems rather anti-user.

[megous]

I use uMatrix, and only thanks to that I realized my bank is doing this too a long time ago.

[kchr]

Regardless, your user agent still tries to.