Albion created plenty of chances to grab a winner, too. Callum Styles fizzed off-target, while Mikey Johnson and Heggebø were denied via good Vigouroux stops.
Thankfully, their third goal finally arrived – and it was Molumby who made himself the hero, slotting in following excellent build-up and ensuring the Baggies claimed three massive points.
Albion: Griffiths, Gilchrist (Campbell 46), Phillips (Bielik 46), Mepham, Styles, Molumby, Mowatt, Iling-Junior (Grant 46), Price (Maja 46), Johnston, Heggebø (Diakite 90+1).
Substitutes: Wildsmith, Taylor, Bany, Dike.
Attendance: 22,200 (1,032).