A client has defined a custom URL on file standalone.conf (Unix) / standalone.conf.bat (Win) uncommenting parameter:
-Dstat.custom.url=ourhost.xy.abc
Then the web link in the Help > About Stat, the URL shows a zero :0/ port like this
--> http://ourhost.xy.abc:0/stat/
Rather than:
--> https://ourhost.xy.abc:443/stat/