cordova-plugin-nativeaudio: iOS, preloadSimple: "Asset Not Found" on http assetPath

Steps to reproduce

Try this:

window.plugins.NativeAudio.preloadSimple('music','http://incompetech.com/music/royalty-free/mp3-royaltyfree/Furious%20Freak.mp3',function(a){console.log("ok",a);},function(b){console.warn("no",b);});

(Or, upload your own MP3 to your own server and point to that path.)

Expected result

The file has been preloaded so that I may play it back

Actual result

The console logs the warning no – "(NATIVE AUDIO) Asset not found. (http://incompetech.com/music/royalty-free/mp3-royaltyfree/Furious%20Freak.mp3)" .

Notes

This was just tested in iOS Simulators for 8.x, 9.x, and 10.x. None of them work.

My only guess is that [[NSFileManager defaultManager] fileExistsAtPath : path] does not check actual external URLs, so the preloadSimple. I’ve tried with a 3-minute song as well as a 5-second ‘sound effect’, and I receive the same error each time.