Then give them an web form that utilizes Zammads API to solve the issue.
That’s imho the cleanest way you can provide to your users if your users have this kind of issue.
I would like it to work in same server. Not have a separate web page to mask system behavior. I’d rather file a RFE and see if system survives the PoC phase. But thank you for confirming that it is not possible ATM.