Basically I've never done this always stripped the walls.
However we now private rent and the bedroom looks like lining papaer painted cream. It's dull and dreary lots of marks.
Normally Id strip it off as always did when we were LA housing.
But the house is old and we've had lots of bad luck with things falling apart.. I can just imagine the plaster falling off with the paper.
Because of the massive window and built in cupboards it won't be much more expensive to paper than paint..plus not need 2 coats or more.
Can this be done?