Hi,
Resurrecting an old support thread…I’m having the same issues as the OP. With NinjaFirewall enabled I’m being blocked from RoundCube webmail client. I’ve added the above code in .htninja file (seen as optional configuration file) with the corrected path to my /mail folder, restarted web services, but still cannot access my webmail. I can get to the login screen, but after input user / pass, I get a blank screen.
Thanks,
Brian