Hendon moved into the last eight of the Isthmian League Velocity Trophy last week against Tilbury with a 2-1 win in what proved to be Lee Allinson's managerial swansong at SJP.
The Greens missed several excellent chances throughout the evening and were indebted to Kai Brosnan's 15th goal of the campaign and Stefan Ilic's crisp first time finish to register his first for the club either side of Alex Hernandez's equaliser for the Dockers.
Hernandez then saw red deep into second half stoppage for an elbow on Ethan Light to mar an entertaining and absorbing contest as the Greens managed their progression.
Tomorrow sees Marc Charles-Smith make his managerial bow at Hashtag United. The game will be played at Aveley's Parkview Stadium, kicking off at 7:45pm.