Email link with port -1

Document ID : KB000112078
Last Modified Date : 24/08/2018
Show Technical Document Details
Issue:
We have configured "Server Information (proxyconfiguration)" with https but without port number.
The result is following Link with -1:
ttps://selfservice.xxx.yy:-1/usm/wpf?Node=icguinode.requestprofile&Args=10095
Environment:
Windows
Cause:
Port Number is empty.
Resolution:
As to the setting in SC/Admin/Config > /HTTPS=Yes and > /Server Information > Port Number is left empty. 
Which then leads to a URL being created with port -1. 
https://selfservice.xxxx.yyy:-1/usm/wpf?Node=icguinode.requestprofile&Args=10095 

No info is to be found where it is stated that the port number can be left empty. 
Nor that this field is mandatory. 

The workaround then is: set the port number to a 'dummy' value (443).