I just upgraded the tour from 1.16.9 to 1.17 and now I get error in HTML5 mode:
INFO: lat
ERROR: video1918.webm - loading video failed!
ERROR: video1938.webm - loading video failed!
ERROR: video1918.webm - loading video failed!
ERROR: video1938.webm - loading video failed!
i do not know why. All plugins are up-to-date.Version 1.16.9. was OK.
http://www.virtualczech.cz/pamatnikvitkov/indexH5.html
Help pls.