Later on in the half, Onibuje was played in down the right before beating a defender and seeing his cross go in after a deflection.
Town had other opportunities but could not hold on and Rochdale hit back to score twice through Kevin Townson (1 pen).
Town: Joe Hart, Tom Groves, Michael Gillian, Carl Clampitt, James Donovan, Liam Murray, Kevin Street, Ciaran Lyng, John Grant, Fola Onibuje, Pavel Wosnack. Subs: Ross Stephens, Gavin Cadwallader, Gary Price, George Hughes, Ian Havard.