If you serve the krpano files and HLS stream from the same domain you can get past the "DOM exception 18" error.
I've tried an initial test doing this, successfully avoiding that error, but am unable to get the video to render. The audio track is playing when using Safari Desktop, and it seems to also be playing on Safari iOS 9.0/iPhone, though, of course there's no audio in that case, and the counter keeps flashing between 0:00 and the current time (using the interface from the 'videointerface' example).
Any clue why the video might not be showing up? Would this be another example of the texture bug (
https://bugs.webkit.org/show_bug.cgi?id=133511) which they claim is solved? Is there maybe an optimal bitrate/video size that would work?