iOS Safari Soundcloud JS SDK Stream returning false

I'm working with the Soundcloud API - and everything is working great, aside from on iOS Safari.

Here's my code below:

SC.initialize({
  client_id: config.soundcloudClientId
});

var trackUrl  = http://ift.tt/17KmNHP;
var splat     = trackUrl.split('/');
var userName  = splat[splat.length - 2];
var trackName = splat[splat.length - 1];

SC.stream("/users/"+userName+"/tracks/"+trackName, function(sound){
  debugger;
});

In any web browser, the value of sound (see "debugger" above) passed in from the callback is a soundManager2 object, ready to be played.

On iOS however (inspecting in iOS simulator and Safari dev tools), the value of sound is false.

Why is this? I can't seem to find any documentation or errors of what this means?