Bug: Public URL in the settings page should be validated
Version: 1.9.0
In the settings page, the Public URL field should be validated, allowing only fully formed URLs to be input, in the form "https://example.com/bla" or "http://example.com/bla".
The placeholder for this field should make the need for "http(s)://" explicit. Maybe even warn the user if they are using plain http.
Other formats should be rejected.