Facebook-crossdomain-https Problem

I’m trying to run the game on Facebook Canvas. When client accessing the server - error occurs “Rejected because no crossdomain.xml policy file was found”. File in its place and configured correctly. I’m pretty sure that the problem is that my server is not using https and client does (Facebook Canvas requires use https). I do not want to modify the server to work via https. Is there any other way out of this problem?

Problen solved! I found answer here - crossdomain.xml error when hosted on https but requesting http - Unity Answers - Just need to add tag secure=“false”