diff --git a/src/initialize-test-window.coffee b/src/initialize-test-window.coffee
index 72a071fb6..d80bc11f4 100644
--- a/src/initialize-test-window.coffee
+++ b/src/initialize-test-window.coffee
@@ -58,6 +58,7 @@ module.exports = ({blobStore}) ->
     document.title = "Spec Suite"
 
     # Avoid throttling of test window by playing silence
+    # See related discussion in https://github.com/atom/atom/pull/9485
     context = new AudioContext()
     source = context.createBufferSource()
     source.connect(context.destination)