PBIRS + ADFS (form) not working from PBI Desktop

Hi,

part of my tests, my Power BI Report server edition will be behind a WAP server 

my users are authenticated using ADFS + form based authentication

this is working fine when I access PBIRS using a browser.

but if I try to edit a report from Power BI Desktop, I cant connect to my PBIRS.

I have to save locally, go on the web site and upload my PBIX file

is there a work around?

this will be supported? or not at all?

thanks.