Task to open a external URL

We now almost have a solution, by making a process flow with a “Open Link” action.

One more think we need to get answered, because we get an ‘invalid link’ error

Invalid URL:
/indicium/sf/stt/document(12345)/STT.download_doc_url

Valid URL:
https://dev.domainname.nl/indicium/sf/stt/document(12345)/STT.download_doc_url

This works fine in de end application, but is more difficult to achieve in SQL

Any suggestions, how to cope with this?

For your info, our webserver configuration: