Ok, so I have scoured the forums and I have not found a definitely answer.

Can the MDS use https through a proxy?

I challenge anyone to know an answer. If not I will have to conclude that it is not possible to do through the MDS config and will proceed to find a way to make my computer itself route the mds traffic through a proxy.

And yes, I have looked at other threads. But I haven't posted enough to this forum to be able to include links