While Joss Whedon has claimed that his superhero sequel Avengers: Age of Ultron won’t feature a trademark post-credits scene, an alleged leak has cropped up online over the weekend.

Although the video might be fake, if you don’t want to risk a surprise being spoiled, you should probably stop reading now.

The scene, with Spanish subtitles, features a window cleaner, with Avengers Tower in the background, as he interacts with Spider-Man. Spidey quips that he’s missed a spot and then that’s about it. It was initially reported on Comic Book Movie.

It follows the recent announcement that Spider-Man will be joining the Marvel Cinematic Universe but without an actor yet cast and a reported suit change, the scene could well be a fake.

Whedon claimed that the lack of a post-credits scene was down to an inability to top the shawarma epilogue at the end of the first Avengers film.

“We all came at it separately – we don’t want to chase that,” he said to Entertainment Weekly earlier this month. “That was a jewel and a weird little quirk.”

But Marvel Studios president Kevin Feige clarified that there would be a tag (a short scene that arrives after the credits start) but nothing after the end.

The upload came at the end of a week that’s seen leaks of the new Batman vs Superman and Fantastic Four trailers.

The Avengers: Age of Ulton opens in UK cinemas on 23 April.