Player gets stuck if timeline+preview flavored image is missing
Steps to reproduce
Steps to reproduce:
1. Upload a video that will let the timelinepreviews WOH fail (no idea when this will happen)
2. Open the player, that seems to load without problems, but it refuses to play the video.
3.The logs indicate that an element is missing for video.js and that timeline preview was not found.
Rüdiger, do you think this a Theodul specific issue: that the Theodul player should have error handling for a missing timeline preview? Or should the timelinepreviews WOH failure prevent a publication from being published and alert on the issue?