<!DOCTYPE html>
<html>
<head>
  <title>Crashtest for bug 1548816</title>
  <script>
let cx = new OfflineAudioContext({numberOfChannels: 1,
                                  length: 1, sampleRate: 44100});
let buffer = new AudioBuffer({numberOfChannels: 13,
                              length: 22050, sampleRate: 44100});
buffer.getChannelData(12)[0] = 1.0;
let o2248 = new AudioBufferSourceNode(cx, {buffer: buffer});
let array = new Float32Array(52428);
buffer.copyFromChannel(array, 12);
  </script>
</head>
</html>
