<video> plays in other browsers, but not Safari

Question

We have an MP4 video on our site; it plays fine in IE9+, Firefox, Chrome, and Chrome on mac. However, on Safari, the video doesn\'t play at all - it does trigger a \"stalled

Answer 1

Just ran into the same issue. All headers, range, etc. were correct. However, I had a poorly constructed service worker. All other browsers handled the failure, Safari did not. Temporarily removed the service worker, and things are back to normal.