The whole point of headless, from what I can tell, is that you don't _have_ to!

you can, and it worked, prior to availability of headless options(Phantom sucks). However xvfb is yet another dependency that could cause breakage.

It also takes a bit longer to start up IIRC, but xvfb + chrome driver on Jenkins definitely works for running tests.

You could also install X server and run tests with an entire graphical stack. But if you don't have to....

The ticket is about the Windows version so xvfb is not an option.