...played just fine in Chrome, though it did have that "middle of the track" cursor placement when I opened the page (and yes, it played the track from the beginning as soon as I hit Play).
Can't edit our comments in the forum, I see. How very... 1990s.
I noticed that if I come back the next day and play the song, it will play. So I think it might well be the cloud service (Digital Ocean). I might need to look for a more reliable service, unfortunately. But what has been your experience? If you come back the next day and play the song, will it play?