I've used Minwax wipe-on poly on cocobolo, but I did first seal it with superglue.
Spread superglue all over with your finger (wearing a latex glove), let it dry, and then sand it smooth again before the wipe-on poly.
I've never tried it without the superglue because I've read on here somwhere before that the oils in cocobolo will keep the poly from drying.