Hi Stanislav,
What is your actual usage scenario? Request to return a value or a page?
If it’s to return a value, please try using HTTPClient.
https://docs.appeon.com/pb2019r2/objects_and_controls/ch02s41.html
If it’s to return a page, PowerBuilder 2019 R3 will support basic and digest authentications. You can try with PowerBuilder 2019 R3 Beta and see if the current features can solve the issue.
https://docs.appeon.com/pb2019r3/whats_new/WebBrowser_enhancements.html
If the issue is not solved, please provide a detailed scenario for further analysis. Thanks!
Regards,
ZhaoKai