Unfortunately the version of Electron that our app users to display game pages may have limited access to embedding certain file types. You may want to provide a file format that is more widely available, like mp4.
Thank you for answering ! I'll see if I can change my video format to mp4 rather than webm. Do you know if it's something that isn't likely to change with the app ?
It’s possible that as we update the app to more modern version of Electron over time, it will gain the ability to play those files. At this time, though, I don’t have any specific timeline for that.
Sorry to bother again with this issue : I've changed the format of video I'm using, from webm to mp4. Unfortunately, when I test the game through the launcher, it's still not working. Do you know if something else could lead to this issue ?