Burnley clinched the Championship title with victory over an already relegated Charlton Athletic side whose boss Jose Riga resigned after the game.
The Clarets ensured an instant Premier League return by beating QPR 1-0 on Monday and match-winner Sam Vokes tapped in the opener after a fine move.
Goals by George Boyd and Andre Gray wrapped up the win after the break.
But irate Addicks fans were more concerned with their continued protests against owner Roland Duchatelet.
Head coach Riga’s resignation, just five months into an 18-month contract, came within 30 minutes of their 24th Championship defeat of a miserable season on and off the pitch.
Charlton campaign group Coalition Against Roland Duchatelet said they were fighting for the “very soul” of the club and organised protests before and during the game, with numerous banners being unfurled and objects thrown on to the pitch.
Fans prevented cars getting into the car park before the match and – although the club put up netting – beach balls, toilet rolls and various other items were hurled on to the pitch in the early stages.
In the second half, with their side 3-0 behind, the anti-Duchatelet chanting increased and couple of flares disrupted play.
But the atmosphere among the home fans was in stark contrast to the travelling supporters, who were able to celebrate a 26th league win of the season.