getDuration() returns -1, then 0 on some remote MP3 files

I'm on iOS (using Ionic) and start playing remote files (hosted on AWS). I set a timer to get the duration. If getDuration() returns -1, I call the timer again. On most of the files, the audio starts playing and eventually, I get the correct duration of the MP3 .

However, on some files, it will eventually return 0 for the duration and the audio never plays. If I download that same file first and then play it, there is no problem playing or getting the duration.

All files are 64bit encoded MP3.

What would cause a remote file not to play and return 0 for getDuration()?

Start at the getDuration() call path on iOS and reproduce with the same remote MP3 versus a downloaded copy. Done means identifying why the remote case reaches 0 and documenting or fixing the plugin behavior, with a regression check for the affected playback path.

Written by the indexing model from the issue text.