I've tried stopping bar oiler leaks on several saws, homelites, Stihls, and others that bar was oiling ok when the saws is being used and I finally decided it's easier to just store the saw in a catch pan, diaper or a carrying case and let it drip.
I've changed oil pumps, installed kits, this and that and about time I thought I had it whipped and all ok next time I seen the saw there would be the oil mess.
Main thing is I always keep a heads up and make sure the bar/chain is being oiled properly when the saw is being used.