Satisfy linter

src/lib/audio/shared-audio-context.js

@@ -1,5 +1,5 @@
 // Wrap browser AudioContext because we shouldn't create more than one
-const AUDIO_CONTEXT = new (AudioContext || webkitAudioContext)();
+const AUDIO_CONTEXT = new (AudioContext || window.webkitAudioContext)();
 
 module.exports = function () {
     return AUDIO_CONTEXT;