Video playback broken in demo site

[kwin]

Describe the bug Open https://aem.enablementadobe.com/content/asset-share-commons/en/light/details/video.html/content/dam/asset-share-commons/en/public/media/Northernlights2_HD.mp4 and click on Play

Video does not start playing.

The network tab exposes that the GET request toward https://aem.enablementadobe.com/content/dam/asset-share-commons/en/public/media/Northernlights2_HD.mp4 is redirected with a 301 to https://aem.enablementadobe.com/content/dam/asset-share-commons/en/public/media/Northernlights2_HD.mp4/ which returns a 403 (due to the slash at the end).