I started testing HTTPClient for the Appeon Mobile app this week.
I'm using the json placeholder test API and the same code as in your tutorial:
PowerBuilder 2017 R2 New Feature: REST - Appeon Community
It works on desktop as expected but when I deploy to the Mobile App I have no results & GetResponseStatusCode returns -1.
Is there still something not supported in this release for Mobile?
Versions I'm using:
Product Version: PowerServer (PB Edition) 2019 Build 2082.00
Appeon Workspace: 1988.00