Missing period character in URL

[kagemandandersen]

I have a service that sends request through our Nginx gateway proxy. The URL
contains two period characters (e.g.
https://localhost:1234/servicename/some.name./serviceendpoint). When the URL
is passed through the Nginx gateway, the URL is missing the last period
character in the URL, resulting in a failure. 

Any idea what could cause this behaviour? A URL normaliser perhaps? 

I am using Nginx version 1.15.7 for Windows.

Posted at Nginx Forum: https://forum.nginx.org/read.php?2,283238,283238#msg-283238