Fix for no MIDI devices

mmontag · Jan 6, 2016 · 81e1ede · 81e1ede
1 parent 6be0ed6
commit 81e1ede
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/midi.js b/src/midi.js
@@ -38,6 +38,8 @@ var MIDI = function(synth) {
   }
 
   function setMidiIn(index) {
+    if (!selectMidi[index])
+      return;
     var id = selectMidi[index].value;
     if (midiIn)
       midiIn.onmidimessage = null;