Whether it works or not varies from phone to phone. I have a couple DT-910's, and I have, or had, many phones with wireless charging. It works on the Lumia 920, Samsung Galaxy S4, and Nexus 6. It does not work on the Galaxy S5 or the S6 Edge. Evidently the coils do not line up.
I would think it should work with a Lumia, but there is the possibility that the placement of the coils in the 950XL was not designed around it. Basically, just try it and see if it works. Or wait until someone else does.